CPU limits in profile

Hi all,
11.2.0.1
aix 6.1
We have a new app to be implemented in our existing PROD db. Since this is not so priority app we want to control/limit is CPU usage so not to affect the critical app (priority) that is currently running in our PROD dataabase.
I am creating this profile for this new app.
CREATE PROFILE app_new LIMIT
   SESSIONS_PER_USER          UNLIMITED
   CPU_PER_SESSION            3000
   CPU_PER_CALL               3000
   CONNECT_TIME               45
   LOGICAL_READS_PER_SESSION DEFAULT
   LOGICAL_READS_PER_CALL     1000
   PRIVATE_SGA                15K
   COMPOSITE_LIMIT            5000000;
I am only concern with CPU and Memory, so the parameter I am concerned with is CPU_PER_SESSION, CPU_PER_CALL, and PRIVATE_SGA.
My question is, what is the good low limit value for these parameters?
CPU_PER_SESSION Specify the CPU time limit for a session, expressed in hundredth of seconds.
CPU_PER_CALL Specify the CPU time limit for a call (a parse, execute, or fetch), expressed in hundredths of seconds.
What happens if my cpu_per_session & cpu_per_call reaches 3000? will it abort the process?
Thanks a lot,
zxy

>Maybe you can give me basic safe commands just to allot 20% cpu to user HR.
And safe command is :
BEGIN
DBMS_RESOURCE_MANAGER.CREATE_SIMPLE_PLAN(SIMPLE_PLAN => 'SIMPLE_PLAN1',
CONSUMER_GROUP1 => 'MYGROUP1', GROUP1_PERCENT => 80,
CONSUMER_GROUP2 => 'MYGROUP2', GROUP2_PERCENT => 20);
END;
Source:Creating a Simple Resource Plan
But a complete study of Resource plan manager need to be well understand and that is free, easy to understand by docs :
Managing Resources with Oracle Database Resource Manager
Just start reading above link and navigate by clicking on next page link. Trust me, only this is the valid and safe way to learn the things.
Regards
Girish Sharma

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Is there a way to assign CPU limitations to a specific software ?

Is there a way to assign CPU limitations to a specific software ?
For example.. when I launch a render.. I don't care if it takes 4hours or 6hours... I prefer that some CPU is kept free so not to slow down the rest of my activities during the day. Is there a way to assign to a specific application a maximum in CPU usage? Or maybe just one core?
Obviously I am asking this for applications that don't have this option internally... I've seen some that let you choose single or dual core for example.
Is there an external software (?) a OS setting (?) or so to do this?

I found this where they also speak about RENICE...
http://hints.macworld.com/article.php?story=20110131001708255
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Konqueror browser for Linux has an useful CPU limitation feature for websites using Flash content. Can you add such a feature in Firefox?

I have recently found that Konqueror browser for Linux can help user to limit cpu usage while visiting a website using flash technology by changing settings in the Flash section and adjusting the slider from VERY HIGH settings to HIGH and MEDIUM and so on. It actually works, and it does not have a direct impact on the general performance for flash player but it may generate some conflicts if other extensions such as add-blocker or click-to-flash are enabled also.
Maybe you can add a similar setting in Firefox in the browser option section or just as an useful addon or extension.

Sorry for being late with my reply. I've just tested that addon that you mentioned in your post ( https://addons.mozilla.org/en-US/fire.../system-monitor/ ) , it looks like a system monitor and nothing more than that.
As for the memory tip ( about:memory ) I agree that it can be extremely useful for users that have less than 1 gb memory installed on their system. I know very little about computers but I can tell your tip for optimizing memory usage in firefox has merits.
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It is not as much an issue with the web browser, any browser, the whole problem is caused by funny people claiming to be deeply involved with web development, and promoting flash technology for ages instead of choosing other alternatives, more user friendly. All I am saying is that flash ruined the entire web experience making people to believe that they actually need dual-core cpu and coreduo and deepfreeze cpu and so on which is only partially true.
I always get better results for cpu usage when watching online videos that use media player as default player and not flash player, and my cpu stays below 70% usage which is not much but still it is not 100% usage.
Konqueror offered me a nice surprise, and I was able to limit cpu usage once I moved that slider from Very High setttings for flash player to Medium settings. I got something between 80-90% cpu usage as a result, and I was very pleased to finally see a working solution to my problem at least for linux if not for windows.
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Windows Small Business Server 2011 Standard CPU Limitation

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Hi,
for SBS 2011 standard the limit is 4 sockets, no specific limit set for cores.
SYSTEM REQUIREMENTS SBS 2011
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Regards Ronny
Visit my Blog or follow me on
Twitter

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Edited by: Dude on Jan 27, 2012 1:20 AM

CPU load unbalanced and too low in multi-processor computers

I have a rather large test system 5-6000 VIs and we have noted some peculiar behaviour.
On a single processor system the application can take up to 100% of the available resources.
On a two processor system the application can take up to 50% of the available resources.
On a four processor system the application can take up to 25% of the available resources.
On an eight processor system the application can take up to 12-13% of the available resources.
I think you guys can get the gist of what I stated above (I didn't get pictures for 1 and 2 CPUs but I have observed the behaviour, personally)
We haven't done any specific multithreading code (we do lauch many parrallel processing loops dynamically = should be a good thing)
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Thanks for any help you can offer.
//David

You really don't provide enough information.
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How many things can really occur at the same time? If you make your code overly sequential by lining everything up along error wires or by overuse of sequence structures, the code cannot be efficiently parallelized, no matter how hard the compiler tries.
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I am not going to look at a project with 6000 VIs, but please show us some profiling data. Find the VI that carries most of the load and attach it if you want.
LabVIEW Champion . Do more with less code and in less time .

ORA-02393: exceeded call limit on CPU usage -- Concept Understanding is req

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Profiles: Setting CPU_PER_CALL & LOGICAL_READS_PER_CALL

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c) 2 Xeon-quad-core-5530 2.40 GHz with 6gigs DDR3 (1600Mhz) - adds about $1000 to price - worth it?
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Hey Zeno!
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I would have to disagree thought that it is hard drive limited at this moment. Take a look at my task manager:
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But I would agree that probably for now 6Gs of ram is probably plenty.
I also don't understand when you said:
"same goes with the CPU, the more cores you have the less benefit you get out of adding more of them"
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Hi all,
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Sathish

Hi,
>>Anybody know how to use profiler in oracle 10g
What do you mean "profiler". About Resource Limits/Create Profiles ?
>>i couldn't able to install the enterprise manager console.
What OS ?
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Debug ? You can use SQL Developer, TOAD, PLSQL Developer for this purpose.
Cheers

What is the correct way of quieting down the CPU fan?

Hello,
Let me first ask for recomendations on an aftermarket CPU Heatsink and Fan to replace the stock one on my AMD x4 965 Black edition CPU please, My profile on this forum has my computers equipment and case etc. But if you need more info please just ask..
Would somebody please give me instructions on how to make the stock CPU cooling fan run at a more appropriate RPM when at idle and or when running with a load on it please.
The stock CPU cooling fan usually runs up there at about 5,000 to 5,500 CPM even when at idle and it's seriously insanely loud, too loud to be sitting next to it and trying to concentrate on work or even playing a game.
I've been loading up the Overclockers Center program and choosing the default profile since that seems to have the CPU fan set to around 3500 RPM which produces an acceptable noise level for the fan. But I figure that having to load up Overclockers Center program and choosing a profile each time I load my computer is probably not the way I should be doing it, so if somebody wouldn't mind, please explain what I need to set in the Bios or elsewhere so that the CPU cooling fan is not blowing my head off with noise all the time.
Thanks

Hello
1-This mobo is strong enough to support such a heavy coolers.Now i have i installed TUNIQ TOWER EXTREM( because of porformance/price here) that is as heavy as v8. although the company dosnt gauranty the failure but it works very well on my case and i rotate and opening the case many times for some experiments!!
2- ZALMAN is a famous cooler producer.I said the rules for choosing a cooler . You can buy one of them .The reviews on net can help you for best choise.BUt v8 is a good proven cooler because the more surface that has and material and big fan.although i didnt have another choice in IRAN.You may find so better coolers.
the fluid mechanic rules say that the surface-material-shape of heat sinks and temperature-velocity-amount of air that moves on the heat sinks are the parameters of a heat sink.
i have a bad experience.In my old case with P4 3 GHZ i bought a good cooler from THERMALTAKE .But the fans is rotating very much and made noise. There was some truth that i didnt mentioned.
The cpu is produce a lot of heat ( more than phenom) and the fan is 10 cmm i think . I replaced the fan with a 12 cmm fan but the system in loads crashed. The heat sink designed for such a fan and it must rotate very much to cool cpu .12 cm fans cant go beyond 2000 rpm i think and this amount of air wasnt enough for cooling.
3- you have a lot of wind in your case!!. I dont know that greater fan than 12 cm is safe because they use more current .But 8 and 12 cm fans works very well with onboard ports and SPEEDFAN program.
After all cooling and making the pc make less noise is a long story .You must have a target . There is a limit that you cant go beyond that so i think you must have a plan and use your money and time on it.
For my new system i had a dream: most powerful-silent-upgradable system so i choosed these parts:
POWER=CM SILENT PRO- for the design and big fan that they have.
CPU=ATHLON II 635 -I knew that phenom is very powerful but make more heat so i used this cpu and have plan for upgrading with a 6 core cpu.
VGA= 1-GIGABYTE 9800GT SILENT
2-ZOTAC 9800GT SYNERGY
choosing a gpu was very hard. 9800gt silent was the most powerful silent cpu that i could buy. but for future i bought a zotac. because it has a single cooler and dosnt occupy a PCI slot that i need.
you may say why you dont buy another 9800 silent? because this card is warm in loads and i had a fear two of them in a case may harm them. I count on HYBRID SLI technology that could shut down the second card but it is not working and i am a little disappoint .
two 9800gt in sli have as power as a GTS 270 in reviews.
CPU COOLER=TUNIQ TOWER EXTREM- According to my counts cooler was silent in ideal but in loads it was noisy so i replaced that
MOBO=NF980-G65-It uses the last chipset from nvidia with sli enabled and ddr3 and phenomii x6 support. (The mobo is hot. According to some reviews it is cooler than AMD chipset motherboards and faster but i hope it was cooler)
Good luck

Internet browsing uses 100% cpu

Hello everybody.
This situation has driven me crazy the last 4 months and till now i have not figure it out.
Everytime i have a video streaming in my computer, CPU usage goes to 100%. It happens every time, either using internet explorer or Firefox or Google chrome. Even when i have a skype video call or a gtalk video call. Some description of each one:
Using internet explorer: While i am watching a youtube video, CPU limits up to 100% after 1 minute or sometime 5 minutes. I am not able to watch a 15min video. Internet explorer process uses 100%CPU. When i kill it via task manager, another instance of IE
appears with the same CPU usage. I also kill it and then 4 or 5 instances of rundll32.exe appear consuming 100CPU. If i kill them, explorer.exe uses 100% of cpu. If i do nothing and just wait, CPU is 100% for two hours. If i just kill only IE instances, taskmngr.exe
is consuming 40-50% of CPU for 1-2 minutes, then other processes like conhost or csrss consumes the same amount of CPU and after 4-5 minutes everything comes back to normal. That's the story everytime i use IE 11.0.9600.16518
Using Firefox: While video streaming, flash player process consumes all CPU. When i kill it, the same behaviour described above occurs.
Using Google Chrome: When i run it, 5-6 instances of google chrome appear in task manager and after some time this browser also hungs with 100CPU.
All above are also happening while i run Skype either i have a video call or just text messaging. Sometimes svchost is 25-30 % and system hungs.
Operating system is Windows 7 home premium 64bit with SP1, my graphics card is NVidia Gforce GT 230M (latest drivers 20% when these situations occur, my system is extremely slow and whatever i do, it limits up CPU usage.
Any assistance is acceptable. Thanks for the patience.

Hi,
First, I would suggest that you reduce the hardware acceleration on the computer and check if it helps.
a. Open Screen Resolution by clicking the Start button, clicking Control Panel, and then, under Appearance and Personalization, clicking Adjust screen resolution.
b. Click Advanced Settings, click the Troubleshoot tab, and then click Change settings.
c. Note that some video card drivers do not permit you to change settings.
d. Move the Hardware acceleration slider toward None to reduce or turn off video hardware acceleration.
This issue can be caused by confliction from one of the background programs or add-ons.
You may use Process explorer as Milos mentioned to find the root cause to fix the issue:
Process explorer:
http://technet.microsoft.com/en-us/sysinternals/bb896653.aspx
You can follow the references below to troubleshoot the issue:
1. 3RD part app: Remove to check the issue
2. Drivers: Update or install compatible version
3. System process/service: Upload the log file for analyzing.
I also would like to suggest you use Windows Performance Recorder to check the issue:
Troubleshooting Windows Performance Issues Using the Windows Performance Recorder
http://blogs.technet.com/b/askpfeplat/archive/2013/03/22/troubleshooting-windows-performance-issues-using-the-windows-performance-recorder.aspx
To diagnose HDD and RAM, I would like to suggest you contact your computer vender.
Hope it helps.
Regards,
Blair Deng
Blair Deng
TechNet Community Support

CPU limits in profile

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