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Detailing Oracle CPU Consumption: The Missing Link - Seminar Introduction
 
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Detailing Oracle CPU Consumption: The Missing Link helps Oracle Database Administrators answer this question, "What's Oracle doing with all that CPU?" For details go to http://www.orapub.com/video-seminar-detailing-cpu-consumption Here's the problem: While Oracle has the world's most advanced database wait time instrumentation, Oracle does NOT instrument CPU consumption. This presents the Oracle DBA with a tuning handicap because CPU consumption can be a significant component of database time. The unintentional result can be solutions with a wait time bias and solution guessing. In this session you will learn how to determine where Oracle is consuming CPU down to the Oracle kernel code function level and how this relates to the broader performance situation. Now you will be able to more effectively develop solutions to reduce both CPU consumption and wait time. Important: The solution created to solve the CPU detail limitation is Linux based. While I'm confident there are very similar solutions in other operating systems, I do not explore this. What You Will Learn - How to answer the question, "Is that process doing anything or stuck?" - How to answer the question, "So what is Oracle doing with all that CPU?" - How to overcome the problem of understanding limitation when there is little wait time but lots of CPU time. - Finding the Oracle kernel function when there could be a possible bug. - Helping you understand what Oracle is doing, "under the hood." Modules - The problem and what to do about it - My journey to find a solution - Creating the solution based on the Linux "perf" tools - Examples of how to use the tool in production situations For information on how you can watch the whole seminar or for more great eduction from OraPub, go to www.orapub.com
Views: 1804 OraPub, Inc.
Oracle Enterprise Manager 12c: Monitor an Individual Host
 
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This demonstration shows you how to monitor an individual host, including CPU, memory, and network utilization, incidents, compliance, log file alerts and other targets on this host. Copyright © 2012 Oracle and/or its affiliates. Oracle® is a registered trademark of Oracle and/or its affiliates. All rights reserved. Oracle disclaims any warranties or representations as to the accuracy or completeness of this recording, demonstration, and/or written materials (the "Materials"). The Materials are provided "as is" without any warranty of any kind, either express or implied, including without limitation warranties of merchantability, fitness for a particular purpose, and non-infringement.
Identify Database Bottlenecks with Performance Monitor Counters [HD]
 
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Description: This video is about How to Identify Database Bottlenecks with Performance Monitor Counters [HD]. You can refer complete Text Tutorial on my website: www.SQLServerLog.com You can join me on social networks: Facebook: http://www.facebook.com/SQLServerLog Linkedin: http://in.linkedin.com/in/SQLServerLog Google+: http://www.google.com/+SQLServerLogs Twitter: http://www.twitter.com/SQLServerLog
Views: 13571 SQLServer Log
Shell Script to Monitor Network, Disk Usage, Uptime, Load Average and RAM Usage in Linux/Ubuntu
 
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Hello Everyone, In this tutorial, How to Configure & Shell Script to Monitor Network, Disk Usage, Uptime, Load Average and RAM Usage in Ubuntu 15.04 - 32bit or 64bit You can also configure in Redhat Linux, CentOS, Fedora, Debian, Linux Mint, Xubuntu. Download the Script from Jumpshare.com Step1 :- http://jmp.sh/v/aCo3L7Qrm8FzwWn1tqGP Step2 :- chmod 755 cloudnetwork_monitor.sh To install Step3 :- ./cloudnetwork_monitor.sh -i Step4 :- monitor NOTE :- For Any Clarification Please Below Comment, Like and Share us and help us to spread. ####--------------------------------------------------------------------------------------#### Subscribe :- http://www.youtube.com/user/itcloudnet?sub_confirmation=1 Website :- http://www.cloudnetwork.in Facebook :- http://facebook.com/itCloudNetwork/ Twitter :- http://twitter.com/itcloudnet Pinterset :- http://pinterset.com/itcloudnet LinkedIn :- http://in.linkedin.com/pub/itcloudnet Google+ :- https://plus.google.com/u/0/107923552480070716949/posts Skype Id :- cloud.network1 E-Mail Id :- [email protected] ####----------------------------------------------------------------------------------------#### Thanking You Hope U Like it........
Views: 11788 Cloud Network
How to add more CPU cores to Virtual Machine in VirtualBox
 
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How to add more CPU cores to a Virtual Machine in VirtualBox some of you might have a good CPU but are only use one core on your virtual computer.. This video shows you how you can add more cores depending on your CPU so you can use Virtual Machine too its full potential
Views: 4872 Haig Dickson
Oracle VM Manager 3.2.1 show hot re-assign of CPUs (cool demo)
 
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This is a cool demo of Oracle VM Manager 3.2.1 with Oracle VM server for SPARC 3.0. I Dynamically re-assign CPUs in a running VM on Solaris 10. Imagine that your VM/Application in running low on CPU power, and without stopping the VM. You just add or remove CPUs. :-)
Views: 1359 gandalf3100
Guardium Open Mic: Sniffer restart & High CPU correlation alerts - 14 Sept. 2017
 
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This Open Mic will discuss how to troubleshoot underlying problems causing you to receive Sniffer restart & High CPU correlation alerts. (See more for indexed subjects.) Troubleshooting Sniffer restarts 01:40 How to know the sniffer restarted Buf Usage Monitor report 05:27 Messages file 09:09 Alert received 12:19 How to build alert to troubleshoot Sniffer restarts 14:27 Import correlation alert 15:47 ( http://www-01.ibm.com/support/docview.wss?uid=swg21698726 ) Build a correlation alert 17:37 Sample alert definition 20:16 How to read the alert Interpret the email 24:02 Take note of the “Query Period” 27:26 Finding why the sniffer restarted 28:58 Troubleshooting High CPU 39:05 Check system resources 42:45 Check Buf Usage Monitor report 45:13 support show db-processlist running 52:12 support show db-top-tables all 55:53 sniffer crashing/restarting constantly 56:58 support show top cpu 57:22 Sharpen your Guardium skills, earn a badge and more with free Guardium training from IBM Security Learning Academy: http://ibm.biz/SecurityLearningAcademyGuardium
Oracle VM 3.2.1 CPU pinning
 
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In this demo of Oracle VM Manager 3.2.1 I will show what CPU pinning is, and what it look like in an VM. Hard Partitioning with Oracle VM Server for x86 (PDF) http://www.oracle.com/technetwork/server-storage/vm/ovm-hardpart-168217.pdf
Views: 2616 gandalf3100
centos 6 - check free memory, cpu usage & running program
 
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chek memory, cpu & running program on centos 6 : ##check free memory free -m ##check cpu usage & running program top
Views: 3537 CentOS Tutorials
Check Process Memory And CPU Utilization in Ubuntu
 
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Use Gnome System Monitor to check CPU Memory and Processes on Ubuntu Systems.
Views: 7650 wtntech
FreeNAS 11.1 ZFS Volume Encryption  CPU Usage VS Not Encrypted Benchmark and Results with AES-NI CPU
 
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Amazon Affiliate Store https://www.amazon.com/shop/lawrencesystemspcpickup Things we love including computers, software, services, gadgets, and of course hot sauces. https://www.lawrencesystems.com/things-we-love/ FreeNAS 11.1 ZFS Volume Encryption CPU Usage VS Not Encrypted Benchmark and Results with AES-NI CPU Command used to write out 5gb of data dd if=/dev/zero of=test.file bs=1024k count=5k Previous Video on Setting Up / Backing Up / Importing Encrypted Volumes On FreeNAS 11 https://youtu.be/tMaOK8TnvQo Our Forums https://forums.lawrencesystems.com/ Patreon https://www.patreon.com/lawrencesystems Twitter https://twitter.com/TomLawrenceTech Our Web Site https://www.lawrencesystems.com/ Affiliate Link for Tube Buddy https://www.tubebuddy.com/lawrencesystems My Current Distro is KDE Neon https://youtu.be/fHpF7I0Eiks
Utilization On Steroids | OraPub Online Institute
 
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For details go to http://www.orapub.com/video-seminar-utilization-on-steroids Utilization On Steroids is a fast-paced, one-hour video seminar for busy Oracle DBAs and Developers. No boring slide decks here! This is high quality video training for an amazing online experience. I has taken me 20+ years to learn what I know and now I'm sharing it with you. You will learn in one hour what took me years to create. I will reveal my approach to calculating utilization. You will see the tools I use in action. I show you how to gather the data and give you my information sources. This nine-module seminar makes you better at Oracle Database performance tuning by digging deep into the realm of utilization. To register and for more information go to: http://www.orapub.com Here is what you can expect to learn: * Possess an intuitive understanding of utilization * See how OS tools gather raw performance data * See how Oracle gathers OS statistics and their reliability * Have the ability to calculate CPU utilization two different ways from v$osstat * Determine your database server's "unit of power" - the core, thread, etc. * Understand the issues with virtualized environments and what to do about them * Be able to apply utilization concepts to IO subsystems, memory and networks * Be able to effectively and authoritatively use utilization in your daily Oracle performance optimization work The course modules are: 1. Introduction/Preview (this video) 2. What is utilization? 3. Where OS tools collect performance data 4. Where Oracle collects OS performance data 5. Calculating OS CPU utilization using the core method 6. Calculating OS CPU utilization using the busy:idle method 7. Utilization challenges and solutions in a virtualized environment 8. Calculating and using your DB server's unit of processing power 9. Additional resources and seminar close To register and for more information go to: http://www.orapub.com
Views: 617 OraPub, Inc.
100 percent disk usage windows 10 fix
 
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Fix 100% disk utilization in task manager - Windows 10 - Simple 3 Step Procedure to make your PC faster For More Tutorials, Tips, Tricks and Hacks on Linux, Oracle, Android, Windows, Whatsapp click on the Below Links. Subscribe : https://www.youtube.com/subscription_center?add_user=technologylair Website : http://techlair.info Facebook : https://www.facebook.com/technologylair
Views: 211691 TechLair
Oracle Enterprise Manager 12c: Use Active Session History (ASH) Analytics
 
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This demonstration shows you how to monitor your database using Active Session History (ASH) Analytics in Oracle Enterprise Manager Cloud Control 12c. Copyright © 2012 Oracle and/or its affiliates. Oracle® is a registered trademark of Oracle and/or its affiliates. All rights reserved. Oracle disclaims any warranties or representations as to the accuracy or completeness of this recording, demonstration, and/or written materials (the "Materials"). The Materials are provided "as is" without any warranty of any kind, either express or implied, including without limitation warranties of merchantability, fitness for a particular purpose, and non-infringement.
Confused? vCPUs, Virtual CPUs, Physical CPUs, Cores
 
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Check out this brief video about vCPUs, CPUs and Virtual Machines.
Views: 81806 Jeffrey Lush
Analyzing Database Resources
 
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Using Resource Analytics: Database, you can view your current database resource utilization by CPU, I/O, Storage, and Interconnect. You can also compare and contrast resource usage between databases, and identify which databases use the most resources, and are expanding rapidly. For more information, see http://cloud.oracle.com/it-analytics. ================================= For more information, see http://www.oracle.com/goto/oll Copyright © 2015 Oracle and/or its affiliates. Oracle is a registered trademark of Oracle and/or its affiliates. All rights reserved. Other names may be registered trademarks of their respective owners. Oracle disclaims any warranties or representations as to the accuracy or completeness of this recording, demonstration, and/or written materials (the “Materials”). The Materials are provided “as is” without any warranty of any kind, either express or implied, including without limitation warranties or merchantability, fitness for a particular purpose, and non-infringement.
100% CPU usage in Windows 7 ?? Watch this !
 
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In this video I show a couple of tricks to lower your CPU idle usage. There are a few processes that usually steal a lot of your CPU-time, like svchost.exe and wmpnetwk.exe. More details in the video! The system I'm using is Windows 7 Ultimate 64-bit
Views: 434890 Zdem0Z
ubuntu 14.04 check your cpu and mem usage using htop 20feb2016
 
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http://askubuntu.com/questions/114997/how-where-do-i-check-my-ubuntu-laptopss-cpu-usage/115044 Help us caption & translate this video! http://amara.org/v/HtVW/
Views: 1659 Dennis G D
Oracle Enterprise Manager 12c: Monitor a Target
 
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This demonstration shows you some basics of monitoring. You view metrics, thresholds, collection settings, and their current system values. The context sensitive help includes general information, data source and user action (where appropriate). Copyright © 2012 Oracle and/or its affiliates. Oracle® is a registered trademark of Oracle and/or its affiliates. All rights reserved. Oracle disclaims any warranties or representations as to the accuracy or completeness of this recording, demonstration, and/or written materials (the "Materials"). The Materials are provided "as is" without any warranty of any kind, either express or implied, including without limitation warranties of merchantability, fitness for a particular purpose, and non-infringement.
Oracle Forms opening slowly Troubleshooting
 
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https://amzn.to/2Ph2CbI [affiliate link] We are back again with some issues and solutions. Actually one of my friends asked me regarding performance tuning if forms are opening slow. That time I gave him some ideas and promised him that I will back very soon with some more information. There are lots of factors which may impact the applications but there are some work around which can helpful fixed the issues. One more thing I would like to tell, friends I shared my knowledge’s as per my real time experiences and real life experiences. So, there is not like just copying and pasting the stuff. As already I have shared my real life time stories which I have learned from my life. So, let’s start now. Suppose, our forms are opening slow then what things we should be check and how to debug it. I will try to explain here and share my knowledge. I am sure; it will be useful because it’s having been experienced. 1. We should check which forms are opening slowly either any particular form or all forms. 2. If all forms are opening slowly for particular machine then clear the cache and try again. It can be machine speed slow, machine hardware and bandwidth speed. If all forms are opening slow and for all machine then we really need to check below things such as: A. Check whether Trace is enabled or disabled and if it is enabled then kindly disabled it. B. Check the top commands if any resources are consuming high CPU usage. C. Check for all Inactive Sessions if it’s there then kill those sessions. D. Check for deadlocks. E. Every user should close the forms and logout properly. But actually we don’t care. We just close windows tab at a time and left for break :D :P but that’s also impact our EBS internally. F. A programmer if ran any program with infinite loops then this also cause a performance issue. That’s why we need to write any program carefully. If program not properly then it may cause deadlock as also which I have explained it in my previous posts. G. It can also be because of increasing the number of users. Also need to check users have one active session. H. Check for the Performance Pack (Native I/O) is turned on for WLS. And most and always we use this method. If the users have issue for any custom forms then we should follow below steps which are easy and very effective. When he run the program that time you should follow below steps: 1. Enable the Trace file. Login to front-end - Help - Diagnostics - Trace - "Trace with Binds and waits” . Then there will be a trace file generate under below patch: $cd $ORACLE_HOME/admin/$CONTEXT_NAME/udump Now you can run either Trace Analyzer or tkprof as shown below commands: Trace Analyzer command: $sqlplus apps/apps_password SQL START TRCANLZR.sql UDUMP ora-data_ora1919.trc; TKPROF command: $ORACLE_HOME/admin/$CONTEXT_NAME/udump $tkprof ora-data_ora_1919.trc ora-data_ora_1919.txt explain=apps/apps_pwd Hope this may useful and helpful. We will come back again with new troubleshooting and solution as what we should do if forms opening slow after increasing the number of session. For any concerns or suggestions please reach to us either by comment box or contact us @ ora-data.blogspot.com.
Views: 1514 ORACLE SUPPORT
Performance Analysis with Project Monitoring in the Oracle Solaris Studio IDE
 
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Learn how to monitor the CPU, memory, and thread usage of your application through this audio-less screencast. The Oracle Solaris Studio IDE is specifically optimized for enterprise C, C++ applications and helps improve developer productivity and reduce time to deliver applications. Download a free copy and learn more about Oracle Solaris Studio at: http://www.oracle.com/technetwork/server-storage/solarisstudio/overview/index.html Copyright © 2014 Oracle and/or its affiliates. Oracle® is a registered trademark of Oracle and/or its affiliates. All rights reserved. Oracle disclaims any warranties or representations as to the accuracy or completeness of this recording, demonstration, and/or written materials (the "Materials"). The Materials are provided "as is" without any warranty of any kind, either express or implied, including without limitation warranties of merchantability, fitness for a particular purpose, and non-infringement.
How to View CPU and Memory Utilization on an Avaya WLAN 8100 WC
 
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How to View CPU and Memory Utilization on an Avaya WLAN 8100 Wireless Controller (WC). Produced by Swasti Verma.
Views: 743 Avaya Mentor
AWS - Monitoring memory usage (Factorio example)
 
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Memory statistics on AWS EC2 instances are not part of the standard dashboard. This video shows how you can get memory statistics and set up an alarm to alert about low memory. This is a continuation of an earlier video where I showed how to set up a server for the game Factorio on AWS. Previous video: https://youtu.be/gYOFl5QN5Jw The commands shown in the video are for Amazon Linux. For other distributions, and additional information about the scripts used, see: http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/mon-scripts.html Commands used: sudo yum install perl-Switch perl-DateTime perl-Sys-Syslog perl-LWP-Protocol-https curl http://aws-cloudwatch.s3.amazonaws.com/downloads/CloudWatchMonitoringScripts-1.2.1.zip -O unzip CloudWatchMonitoringScripts-1.2.1.zip ./mon-put-instance-data.pl --mem-avail crontab -e */5 * * * * ~/aws-scripts-mon/mon-put-instance-data.pl --mem-avail
Views: 7888 goto64
Windows 7 - Adjust the Vitual Memory Pagefile Setting - Increase Performance
 
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Do you want to make sure that you are getting maximum performance from Windows 7? Make sure that you Virtual Memory Pagefile is set up correctly. This is particularly important if you have increased or decreased the amount of physical RAM that you have on your motherboard. See my other videos for more help and tutorials. If you found this video tutorial useful, please Subscribe for updates and new info.
Views: 254864 Help Video Guru
VirtualBox High CPU Usage Issue
 
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The only way I can get the CPU to go down is by creating a dummy machine and run it while the main vm is running (even though the later is idle). There is an issue with probably CPU affinity or .... Windows 7 Host, centos guest, dummy guest with no hard drive. Specs: AMD turion 64 x2 Mobile TL-60 2 Ghz Same result with a Ubuntu host http://ycsoftware.net/virtualbox-high-cpu-problem-illustration/
Views: 9189 ycsoftware
Array Linked to a List, the full story! by José Paumard
 
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Should LinkedList be deprecated? This question might look like one more useless troll if had not been asked by Stuart Marks, Java/JDK/OpenJDK developer at Oracle, a true expert of the subject, currently working on the evolutions of the Collection Framework for Java 9 and beyond. Followed a long thread with many fine contributions that we will see. It turns out that answering this question takes us for quite a long journey, from algorithms and their complexity to memory footprint and CPU caches usage. We will show how to evaluate the performance and the main data structures in the Collection Framework: ArayList, LinkedList, HashSet, HashMap using JMH, now the JDK standard for microbenchmarking. We will also see alternative Collection implementations. This talk will cover the notions of pointer chasing, CPU caches, and what Java 9 brings for the Collection Framework. Lastly, we will show how to implement collections and hashmaps with lambda expressions. José Paumard is an assistant professor at the Institut Galilée (Université Paris 13) and a PhD in applied mathematics from the ENS de Cachan. He has discovered the Java language in 1995, and has been teaching the Java technologies at the university since 1998. José is also a Java Champion and Java Rockstar. José has also been working as an independant for numerous companies, in a variety of areas. He is a well known Java / Java EE expert and trainer. He also publishes "Java le soir", a technical blog in french (http://blog.paumard.org/), with about 750 pages of courses about Java / JEE in open access. [SBX-4851]
Views: 2547 Devoxx
Bart Sjerps | EMC World 2014
 
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This week's EMC World 2014 Event, held at The Sands Convention Center in Las Vegas, is actually the site of where theCUBE broadcast its first event five years ago, and also the site of two live broadcasts brought to you by SiliconANGLE. Joining co-hosts Jeff Frick and Steve Kenniston was Bart Sjerps, Principal Engineer for EMC out of EMEA. Dirty Cache To start off the interview, Kenniston asked Sjerps about his blog Dirty Cache. He explained that the inspiration behind his blog's name came from a 90s song with the same title, and also because he likes to help his customers save money. You can read more on that story here, and even find a video link to the referenced song. Insights on Oracle . As Sjerps is an Oracle specialist, Kenniston went on to ask about his perspective. "What I see now in my customer base is that customers are actually virtualizing their databases," Sjerps responded. "They are conservative, and I don't blame them. So, what they do is start with test and development, and they slowly move a virtual platform." "Some of our customers are putting mission critical production database on VMweb, and they solve all the issues around support and certification, and what they have to do if Oracle finds an issue." Kenniston then went on to ask Sjerps what best practices he has learned along the way, or some of the right first steps as one is thinking of putting your Oracle database into the cloud. "The first thing you have to do is start conservative," said Sjerps. "Be very slow moving. Just test it out. Make sure the tools are in place. If you would go and migrate the whole thing at once, then you'll probably hit some issues down the road." The next thing that Sjerps goes into is licensing, emphasizing its importance. "Oracle is very keen on licensing. They have audits, policies and stuff like that," he warned. "Make sure that your licenses are in place, that you're compliant with your Oracle policy and all that. That's critical. If you're not in compliance, then you might have some severe issues later." Hybrid and Public Clouds . Frick went on to ask Sjerps about what he's seeing with hybrid clouds and public clouds. "Customers are very conservative," Sjerps answered. "So, they will probably deploy on a private cloud -- maybe hybrid if the hybrid partner is an outsourcer that they trust." Frick then brought the conversation back to licensing and asked if customers are finding it to be a relatively neutral transition cost-wise when they move from the regular licenses to the virtualized. "Many databases that are physically deployed have a very low CPU utilization," said Sjerps. "Now, Oracle, I would say 90 percent of the cases are licensed by CPU core and it's pretty expensive. Probably, as you know, 70 -- 80 percent of a database tech -- the cost of it -- is made by licensing and support of those licenses. So, if my database tech is expensive and 80 percent of that cost is in Oracle licensing and that 80 percent is only utilized for 20 percent, you see how many dollars I am basically wasting." Sjerps then explained that customers have to do this because they have to size for big loads or for future growth. Oversizing one's server means average utilization is low. "One of the things you can do with virtualization is basically glue all those CPU resources together and now you have kind of like a cloud, if you will," Sjerps explained. "That cloud allows you to move workloads and set CPU shares and all of that stuff so now every database can use all of the CPUs in the farm. And, by doing that, and using some specific workload management techniques, you can drive utilization." After discussing Sjerps' history with the EMC conference and finding out what he hopes to learn at the event this year, the interview concluded with him going into further detail about Dirty Cache. The number one topic that his customers ask for is performance on databases. Sjerps also uses real-world examples in his blog posts and does tests to show what's going on. See the blog here for more details.
Wappalyzer CPU usage when Firefox is idle
 
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Love Wappalyzer for Firefox, it's one of the very best reasons I use Firefox. My issue is that when the extension is enabled the CPU usage of Firefox is constantly between 12% to 20% when Firefox is idle and now loading or doing anything at all. I made a screen recording to show the problem. Please note the CPU usage of Firefox when extension is enabled and Firefox is idle! Recorded on Macbook Pro, 2.3Ghz Core i5, OS X Lion 10.7.3, Firefox 10.0.2.
Views: 665 Kaloyan Petrov
Unixadminschool.com - Identifying Performance Bottlenecks - IO / CPU / MEMORY
 
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Discussing about using Various builtin performance monitoring tools like iostat, prstat, vmstat ..etc., to identify the memory, IO and CPU bottle neck.
Views: 10600 Gurkulindia Com
Windows 98 on VirtualBox - How to do it properly. 32bit Graphics, ACPI and Internet Access.
 
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Windows 98 is not supported on VirtualBox and it runs really badly. For Windows 98 to run properly it has to be installed with ACPI, without it, CPU usage will be at a constant 100% (Things can be improved further with a piece of software called RAIN, this will be shown in a future video.). If you install everything correctly, Windows 98 will run in VirtualBox like a dream, this video will show you how. SciTech Display Doctor: Here is the key for display doctor. I have included this as the company does not exist anymore and there is no possible way to buy and/or register the product. Name: CSCKnight Serial: 0B5E-12B4-A8A4-0B https://www.virtualbox.org/wiki/Downloads https://winworldpc.com/library https://www.fileplanet.com/85954/80000/fileinfo/SciTech-Display-Doctor-v7.0-Beta Part 2 will show you how to tune Windows 98 to run Games and other software at optimum performance. Coming soon! A mix of modern and vintage programming languages. From 8 bit consoles to early PC languages such as Pascal, all the way to Java and C#. In addition we will show you how to make games on all of these languages and on modern Game Engines such as Unity.
Views: 38174 Nevets
Two Queue Or Not To Queue, That Is The Question - Seminar Intro
 
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Two Queue Or Not To Queue, That Is The Question will help you tune Oracle systems faster and with a greater depth of understanding. The insights you gain provide both a tactical and strategic performance tuning advantage. From driving in traffic to being served at a restaurant, every person feels the impact of queuing theory. Queuing theory beautifully relates time and work into experiences we can feel; like utilization, workload intensity, response time, elapsed time, user experience and systems architecture design. Queuing theory can be well...theoretical! But Oracle ACE Director Craig Shallahamer turns this topic upside down making it a fantastic learning experience. For details go to http://www.orapub.com/video-seminar-to-queue-or-not For details on OraPub go to www.orapub.com Modules 1. Setting The Stage 2. You Can't Escape A Queuing Theory World 3. The Work And Time Relationship 4. Craig's Hamburger Stand - Definitions 5. Utilization Explored 6. Response Time Explored 7. Going Deeper Part 1 - CPU and IO Subsystems 8. Going Deeper Part 2 - Changing Parameter Values 9. How Queuing Theory Is Used By DBAs 10. Seminar Close What You Will Learn - How to tune Oracle systems faster by understanding queuing theory - How to merge queuing theory into Oracle database performance tuning - What truly is response time - How response time relates to workload intensity, utilization... user experience - How to explain a performance incident from a practical queuing theory perspective - How every person is immersed in a queuing theory world - How an Oracle time-based analysis intimately relates to queuing theory - Why increasing an Oracle workload can hurt performance - How to understand the classic response time curve - How the response time curve relates directly to SQL elapsed time - What are the key queuing theory parameters - Why performance slows when CPUs and IO devices get busy - How to get the busyness for your CPU and IO subsystem - How to calculate the CPU subsystem utilization from v$osstat - Why CPU and IO subsystems are different queuing systems - What happens when we tweak queueing theory input parameters - How is utilization and response time are affected by more or faster CPUs - How does adding more IO devices affect SQL statement elapsed time - How does queuing theory relate to a SQL statement's elapsed time - Why pushing more work through your Oracle system consumes more CPU and potentially more wait time - How can I determine the response time for a SQL statement - How queuing queuing theory relates to performance tuning - How queuing theory parameters relate to my Oracle database activity - How applying queuing theory focuses my performance tuning solutions - How queuing theory can be used in forecasting and predictive analysis - How can I tell if a performance solution is bogus using queuing theory - How can I pick better tuning solutions using queuing theory - How I can use my AWR or Statspack report from a queuing theory perspective
Views: 360 OraPub, Inc.
Top 10 Linux Job Interview Questions
 
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Can you answer the 10 most popular Linux tech job interview questions? 0:00 Introduction 0:53 Tech Phone screens 1:50 How to check the kernel version of a Linux system? 2:50 How to see the current IP address on Linux? 4:03 How to check for free disk space in Linux? 4:55 How to see if a Linux service is running? 6:33 How to check the size of a directory in Linux? 7:02 How to check for open ports in Linux? 9:48 How to check Linux process information (CPU usage, memory, user information, etc.)? 11:49 How to deal with mounts in Linux 13:51 Man pages 15:04 Other resources How to ask questions the smart way: http://catb.org/~esr/faqs/smart-questions.html This is a list of the most common Linux System Administration Job Interview Questions. These questions are commonly used as 'filters' in a phone screen or first-round interview. Make sure you know all the answers, and the reasoning behind them! This video only covers Linux-related interview questions; the position you're interviewing for might involve other technologies, too: -databases (or a specific database) -networking -programming, or a specific language -infrastructure / architecture -specific applications or services -AWS, Google Cloud More Linux Tutorials ############### Free Linux Sysadmin Course Playlist: https://www.youtube.com/playlist?list=PLtK75qxsQaMLZSo7KL-PmiRarU7hrpnwK Check out my step-by-step project-based Linux course for beginners, 93% off when you use this link: https://www.udemy.com/hands-on-linux-self-hosted-wordpress-for-linux-beginners/?couponCode=TL-YOUTUBE Official Site & e-mail list: https://tutorialinux.com/ Twitter: https://twitter.com/tutorialinux Facebook: https://www.facebook.com/tutorialinux Patreon: https://www.patreon.com/tutorialinux Podcast: http://kernelpanicpodcast.com
Views: 839778 tutoriaLinux
Basic Stress Identifier Usage
 
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The OraPub Stress Identifier is an automated software product which allows Oracle DBAs to determine what specific Oracle internal database activity is stressing their database server. Unexpected performance events are disastrous because they catch you by surprise. If you knew what to watch out for, obviously you would have monitored the situation. By knowing exactly what Oracle internal activity stresses your database servers' CPU, IO, and network subsystems you can be sure that anytime an application, Oracle, or a user change occurs you'll be able to know if it will impact your system. That's powerful because performance threats are effectively dealt with before they are allowed to become disastrous. That's why the Stress Identifier product is more---a threat identifier.
Views: 511 OraPub, Inc.
Operational Data Analytics with Elasticsearch, Elastic Stack (ELK Stack)
 
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Centralize your logs and metrics in Elasticsearch for analysis and visualization in Kibana. Learn more: http://go.es.io/2GQKxNL
Views: 11426 Elastic
Oracle ZFS Storage Appliances - Demonstration: ZFS Storage Appliance Details (Part 6 of 6)
 
19:18
Learn about the options and capabilities of ZFS storage appliance management. Part 6 of 6 in this series from SkillBuilders.com/ZFS. Mick: Now we're going to look at the Storage Appliance in some detail. The first thing we're going to do is just have a quick look through the different menus that you see here at the top. You can see that within the different menus - can you see here you have services, storage, network, etc. on the configuration? These are maintenance menu which allows you to do things with the system. For example, do a reset which is what I have to do every time I want to start from scratch for example. I can create shares. I can look at the system status and my status screen showing various analytics or I can generate specific analytics. Just let's get started by showing you how I can add statistic, say a percent utilization of the CPU and instantly I'll get a nice graph coming up. I can add another statistic like network interface statistics. I can go on like this creating whatever statistics I like. Using these little buttons here, these icons, I can show a minute of data, show an hour. Obviously, the appliance would need to be running for some time before I could actually show these in full detail - show a full day, etc. I can represent data by different types of graph. You can see pretty detailed information is available. Let's go back. What I'll do is start by going into configuration and I'll create a user account. The analogy would be just like creating a user on a Microsoft system or Unix box. I'll click on plus (+), I'll create a user. ZFSuser1, local only, not on the network directory. Clear the password. The things here require sessionalization. It would mean if they user logged in, they have to type a reason as to why they're logging in, if they have some sort of admin function on the Storage Appliance. I only want to use the user for authenticating when I access the share. If I click kiosk user, that would then restrict what they could see when they use the browser interface to look at the Storage Appliance. I'm going to add the user then I'm going to go into shares. Rather than create a single share, which I could do, I'm going to go into projects so I can categorize my share under project which will make it easier for me to manage a bit later. I'm going to add a project called SkillBuilders. Now I'm going to go back into shares and bring up my projects, select SkillBuilders. Now when I create a file system that will be associated with that project (as you can see) and I'm going to create a share called reports owned by the user I've just created, zfsuser1. Here I can set my permissions, which you can see are Unix permission groups, and I can click on individual permissions. I'm just going to leave read-write execute for owner at the moment. From there I've created a share. Now you might say, "How would you see this?" Just like any other share. If I go into a remote session, I'm going to log into a local system, logging in as zfsuser1. I've got the equivalent user account setup on my Solaris 10 system. If I do showmount-c, I can see the report share is exported. Note the default mount point export report which I can change if I want to but everything is shared from /export. In order to mount this manually I would need to become root on my Solaris box and then mount mnt directory and /mnt. As you may be aware, if you're used to Solaris, it is always a mnt directory that's handy for mounting stuff. Usually it is.
Views: 2896 SkillBuilders
How to Find Top 5 CPU Consuming Processes
 
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How to find top 5 CPU consuming processes with eyeShare- Ayehu video tutorial. We'll take a look at how to find top 5 CPU consuming processes using Ayehu eyeShare. Ayehu eyeShare is an IT Process Automation tool. Try it for free! Ayehu eyeShare IT Process Automation for 30-day free evaluation! For more Info please visit our website at http://www.ayehu.com
Views: 1087 Ayehu NG
[Free] How to Setup Windows 10 in Virtual Box
 
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How to Setup Oracle VM Virtual Box and Microsoft Windows 10. No MIC just just Music and Information :) Download the latest Version of Oracle Virtual Box Here https://www.virtualbox.org/ I had to update so I am installing it now. Sing up to Get Windows 10 ISO here http://windows.microsoft.com/en-us/windows/preview-iso Oracle VM Virtual Box is great! It's free and not huge in Size. You can run all different types of OS's on it as long as you have enough CPU and ram to run it. You can check in Windows Task Manager to check your CPU and memory usage and turn down the VM if needed I have 4 CPu's and 16 GB of ram I have a pretty High end machine so I can run a few VM's @ work I am testing Windows 10 today. I will show you how to run and setup a Windows 10 for testing for yourself. I have 2 built already I use @ work LEts Build a Windows 10 Click On New Just setting the name changed the Version. This Version is where you will pick your OS Click Next Now you want to give it X amount of ram This is pretty simple as you want to give it enough for it to work If you can't spare 2 gb of ram or more you should upgrade your PC as most VM's run pretty poor with less then 2gb of ram I gave it 3 gb of ram as I have spare Best way is to make a new Virtual Hard Drive to host this OS You want to Select a VDI Virtual box Disk Image VMDK is for VMware but you can always convert your file if you want later on. We will keep it simple and Keep it VDI I like the Dynamically allocated Disk Size, this way we can add another drive and it only uses as much disk space For Example if we give it 30gb of disk space and it uses 20, it will only use 20gb of disk space on ur pc IF we do a Fixed size it's set for that size, but it can be faster I'm just doing this for testing so I'm just going to give it 22gb of space. I want to point out Most OS" fully patched with Office will be around 20 GB or more. So it's better to make a bigger drive off the back 30 GB or more is ideal no need to make it 80gb or more unless u plan to use all of that space. Now it's Made We need to load up the ISO image of Windows 10 You can give it more CPU's as well if u want See this Empty CD Rom Drive, this is a Virtual Drive you can just use a CD or even an ISO to set up any OS you want Just put any OS ISO or Disk here I have it on my shared drive so I loaded it up here Now I just click power on and let it run IT will auto boot off my ISO As you see before I had done this with Windows 8 It's pretty simple to install any OS with this same method Virtual Box is very easy to use You need to do a custom install or it will revert you back This is the same issue for Windows 7 and Windows 8. You can install so many different flavors of OS with this tool and it's %100 free. When you power off your machine you can make changes and edit settings as you see fit The ram is being used as well as much more of my CPU now. You do need a pretty good PC to run virtal box You should have over 4gb of ram A CPU with at least 2 cores and over 2000 mhz Idealy u want to give each VM you make 1 cpu 2200mhz or better 2 gb of RAm and enough disk space to do what you want to do The Disk space can be used on different drive areas as well The ISO was still in the CD rom drive. Make sure to take it off when the install is done. I didn't let it run a fresh boot. I took it off of the Controllers Host Drive and just set it to the D Drive. The D Drive is my real LIFE CD/DVD Drive. So even if you can't download an OS if you have a working CD ROM DVD Drive you can load up a OS from a CD or DVD This programs has great ways. You can USB boot. I just find it simple to have the ISO on my machine and boot off of that. So Now the Windows 10 OS is going to finish booting up I'm not going to custom set it up as this video is already Long With Windows 10 they want you to have a Microsoft Account to log into I don't have any account so I will make a new one You should make ur own account before Windows 10 is kinda of like google apps as they want you to sing in ur account and link everything with it. Let this install Finish up. The next thing we will do is install the Virtual Box Tools so we can go full screen. Run this program and install it. This makes it so you can copy and paste and map drives ect See how I can't full screen Watch after we reboot We can change the size's ect Make sure to enable all the tools you want You now have Windows 10 to play around with :) have fun Make sure to sub and like and share this video with others :)
Views: 2705 gotembro
22 Basic Execution Plans
 
29:46
SQL Server 2012 Administration Essentials SQL Server 2014
Oracle Performance Tuning onlineTraining
 
03:51
Feel free to contact Call : +91-8870903864 Or E-mail [email protected] ORACLE PERFORMANCE TUNNING 1 – 1: Introduction to Oracle tuning - The top-down approach to tuning - The history of Oracle tuning - A review of the Oracle architecture - The goals of Oracle tuning - Overview of SQL tuning - Oracle network bottlenecks - Oracle RAM usage and bottlenecks - Oracle CPU usage and bottlenecks - Oracle disk I/O overview - Monitoring server (sat, vmstat, top, glance) - Movement toward server consolidation 1 – 2: Oracle disk I/O tuning - History of DASD - Understanding disk I/O - Monitoring disk I/O (AWR, dba_hist_filestatxs) - Sorted hash cluster tables - Disk I/O waits - Oracle data buffer internals (db_cache_size) - Caching data blocks in the PGA (parallel full-table scans) - Blocksize and I/O performance 1 – 3: Oracle CPU Tuning - Finding your cpu_count - Measuring CPU usage with vmstat - Oracle CPU usage - Using processor affinity - _optimizer_cost_model=cpu - Parallel query and CPU 1 – 4: Oracle RAM tuning - all_rows and first_rows optimization and RAM - Multiple data buffers - Multiple blocksizes - Measuring RAM paging - Oracle SGA RAM - Oracle PGA RAM - Using the KEEP pool - Automatic Memory Management (AMM) 1 – 5: Oracle Instance Tuning - Global tuning techniques - Display possible unnecessary large-table full-table scans - Library cache tuning - Finding missing indexes - Tuning the database writer - instance parameter tuning 1 – 6: Oracle SQL Tuning Introduction - SQL tuning hierarchy - SQL tuning goals - optimizer modes - query re-write - cursor_sharing - viewing execution plans (autotrace) - verifying optimal join techniques - parallelizing SQL execution - dynamic statistics - Exercise – count times when a table is invoked - 12c new SQL features - function-based virtual column - adaptive execution plans - 12c new optimizer metadata collection features 2 – 1: AWR and ASH - AWR vs STATSPACK - Reading an AWR report - AWR report analyzer - Basics of predictive modeling for performance - Finding repeating signatures of data 2 - 2: Oracle RAC Tuning - RAC architecture tuning - Tuning disk I/O on RAC - Tuning the cache fusion layer on RAC 2 – 3: Oracle Tuning Pack - creating SQL Profiles - Recommending new indexes - “automatic” SQL Tuning - SQL Performance Advisor (SPA) - recommending object reorganization 2 – 5: Oracle Diagnostic pack - AWR and ASH - real time SQL monitoring - comparing performance periods - Oracle monitoring & alert notifications (setting thresholds) 2 – 6: Oracle Tracing - 10046 tracing - TKPROF tracing - Trace analyzer - Autotrace 3 – 1: Introduction to SQL tuning - Pre-SQL database communications - The evolution of SQL - Declarative languages 3 –2: Optimizing Oracle SQL - Parsing a SQL statement - Semantic parsing - Hard parse vs. soft parse - Decision tree generation - Making SQL reentrant 3 –3: Optimizer statistics - Types of metadata - Index metadata - Segment metadata - Server metadata - System stats 3 – 4: Exposing & Reading Execution Plans - autotrace - SQL*Trace - Determine the steps of an execution plan 3 – 5: altering execution plans - Changing CBO statistics - Changing init.ora SGA parameters - Changing optimizer parameters - Using hints - Using the opt_param hint 3 – 6: Oracle indexing - Overview of Oracle indexing - bitmap indexes - bitmap join indexes - guidelines for creating indexes - function-based indexes (FBI) - index usage monitoring - fishing in the library cache - optimizing indexes - The transient nature of indexing - database modality of workloads - SQL Workload analysis - Identifying EOW, EOM and EOY SQL. - Creating on-demand indexing - oracle text indexes Oracle Performance Tuning training online, Oracle Performance Tuning training material, IBM Websphere Application Server training cost, Oracle Performance Tuning training pdf, Websphere Application Server training in USA uae India, Oracle Performance Tuning training, online Corporate training malaysia Singapore, Oracle Performance Tuning software, Oracle Performance Tuning training in bangalore, Oracle Performance Tuning training institutes in hyderabad, Oracle Performance Tuning training in chennai, Oracle Performance Tuning training in hyderabad, Delhi, Mumbai, Pune, Oracle Performance Tuning, IBM Websphere ApplicationServer webinar, online training singapore, Oracle Performance Tuning eam, Oracle Performance Tuning as a service,Oracle Performance Tuning online Training Oracle Performance Tuning online Training Oracle Performance Tuning online Training Oracle Performance Tuning online Training maximo scheduler, Oracle Performance Tuning (consumer product) Oracle Performance Tuning online Training Oracle Performance Tuning online Training Oracle Performance Tuning online Training Oracle Performance Tuning online Training Oracle Performance Tuning online Training , Post Training Support
Module 3 - SQL Server Health Check
 
33:04
Basic SQL Server diagnostics, SQL Errorlog, sp_configure,Blocked Processes,DBCC,DMVs, Demo: Health Check scripts This video is part of the SQL Server Overview Training material. Check out the following links for the full content: SQL Server Overview Training Space ( Playlist - Select which Module to view) https://www.youtube.com/watch?v=_nrSOANNVEU&list=PLviL2Q5l6zXpvEAyIk8IzPzdjW_5swPDj SQL Server Overview Training (Full - All modules without interruption - 3.5 hours) https://www.youtube.com/watch?v=YuZdEqh94G4
Views: 5773 Frigo
How To Kill All Database Processes On SQL Server
 
06:42
SQl management studio provides lot of facilities to manage SQL processes. The “Activity monitor screen” which will show you some very useful and important information about SQL processes. It will show you all active processes, there status, number of open transactions for each process, the application by which the process is generated, Wait time CPU and memory utilisation, and the host name, means the host or the machine by which the process is initiated etc. If a process is hanging, it will show the process icon with an hour glass. Refresh it several times, sometimes the icon will turn to sleep mode if the process completes its execution. If the icon remains an hour glass, the process may be hanging. Use other info as well to decide if the process is really hanging. If you double click on the process ID it will show the SQL stamen subjected to the execution of the process. If a process is hanging you can identify which application has originated the process, which SQL stamen is hanging and even more from which machine or the host the process is initiated If some application users are complaining about uneven slowness, uneven timeouts etcetera, the reason behind may be one or more processors are hanging. What can you do now? You can restart the SQL server or the service which will disconnect all databases and all applications disturbing all the users. Or otherwise you can take the database to off line and bring it back to online. Or you can disconnect all connections to the database. The disturbance may be lesser than the previous case but still lot of applications and users can be disturbed, especially in an industrial setup. And still you do not know the real reason for the slowness or the malfunctioning as well. So what can you do? Go and examine the processors. Identify exactly which process is hanging. And most probably you will be identifying how and why. So you can find permanent solution. But the immediate solution is you can kill the troubling process or the few. It will solve the issue with minimum disturbance immediately. After identifying the correct process, you can right click on the process ID and click on ‘Kill process’ button. It will kill the selected process. You can kill processors using SQL statements and, using SQL commands you can kill all processors at once as well. Code for Killing Processes Individually USE master go DECLARE @dbname sysname SET @dbname = 'YourDB' EXECUTE ('KILL 53') Code for killing all Processes USE master go DECLARE @dbname sysname SET @dbname = 'YourDB' DECLARE @spid int SELECT @spid = min(spid) from master.dbo.sysprocesses where dbid = db_id(@dbname) WHILE @spid IS NOT NULL BEGIN EXECUTE ('KILL ' + @spid) SELECT @spid = min(spid) from master.dbo.sysprocesses where dbid = db_id(@dbname) AND spid @spid END
Views: 6391 Rohan Mehtha
Linux Deepin 12:12 Memory And CPU Usage Demo
 
07:04
Follow Me On Facebook: https://www.facebook.com/groups/431026570293370/ Follow Me On Twitter: https://twitter.com/MicroFreaks Follow Me On Google+ https://plus.google.com/u/0/communities/109163728124788401213 Please Visit My Blog: http://charliehensonlinux.blogspot.com/
Views: 851 Charlie Henson
How to check and compare baselines with SQL Monitor
 
01:17
SQL Monitor Technical Author Anne Edwards explains how to check baselines for SQL Server performance metrics in Redgate SQL Monitor. To find out more about SQL Monitor, and to try it for yourself, visit http://www.red-gate.com/monitor
Views: 850 Redgate Videos
Linux Profiling at Netflix
 
59:59
Brendan Gregg's talk at SCaLE 13x socallinuxexpo.org http://www.brendangregg.com/blog/2015-02-27/linux-profiling-at-netflix.html Profiling can show what your Linux kernel and appliacations are doing in detail, across all software stack layers. This talk shows how we are using Linux perf_events (aka "perf") and flame graphs at Netflix to understand CPU usage in detail, to optimize our cloud usage, solve performance issues, and identify regressions. This will be more than just an intro: profiling difficult targets, including Java and Node.js, will be covered, which includes ways to resolve JITed symbols and broken stacks. Included are the easy examples, the hard, and the cutting edge.
Views: 10524 Deirdré Straughan
Hacking Tour of Europe | BSD Now 260
 
01:20:15
Trip reports from the Essen Hackathon and BSDCam, CfT: ZFS native encryption and UFS trim consolidation, ZFS performance benchmarks on a FreeBSD server, how to port your OS to EC2, Vint Cerf about traceability, Remote Access console to an RPi3 running FreeBSD, and more. Show Notes & Download: http://bit.ly/bsd-260 Support Jupiter Broadcasting on Patreon ------------- http://bit.ly/jbsignal --- Jupiter Broadcasting Shows --- Ask Noah ------------------------ http://podcast.asknoahshow.com/ Coder Radio -------------------- http://coder.show/ Linux Action News ---------- http://linuxactionnews.com Linux Unplugged ------------- http://linuxunplugged.com/ BSD Now ------------------------- http://bit.ly/bsdnow TechSNAP ----------------------- http://techsnap.systems User Error ------------------------ http://bit.ly/usererror --- Social Media --- Youtube ------------------- http://bit.ly/jupiteryoutube Twitter --------------------- http://bit.ly/jupitertwitter Facebook ----------------- http://bit.ly/jupiterfacebook Instagram ---------------- http://bit.ly/jupiterinstagram G+ --------------------------- http://bit.ly/jbgplus Reddit --------------------- http://bit.ly/jbreddit --- Support --- Patreon ------------------- http://bit.ly/jbsignal Paypal --------------------- http://bit.ly/jupiterpaypal JB Stickers -------------- http://bit.ly/jbstickers • Jupiter Broadcasting © 2018 •

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