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Setting CPU Priority on NT/Citrix?

Posted by Cliff on from the preventing-bad-apples-from-spoiling-the-whole-bushel dept.

Broue Master asks: "I was recently faced with the task of finding a way to prevent some users from taking 100% cpu time in Citrix. I'm no MS certified anything (but I am a Citrix certified admin) and I couldn't find a built in way to do this. After someone on the NTSysAdmin List suggested trying to set the CPU priority to low from the command line, I investigated and found a small freeware that did the trick: PrioSet. I don't have a big user base: 3 power users (who are my problem with their Access and Excel use) and 10 regular users (and the people most affected by the problem). I'd like to know if any of you have previously tried this software, or if you've run into the particular problem when one user is getting 99% of the CPU for a long time while all other users only share the spare 1%. Did the software solve the problem or did you solve the situation by other means?"

4 of 48 comments (clear)

  1. Might not apply, but by Asprin · · Score: 4, Informative


    If the problem is 16 bit DOS apps, Tame can help.

    Also, when you installed Office, did you run the appropriate app-tuning script afterward? (Search in x:\wtsrv for *.cmd and you'll find a whole bunch of them.) These scripts can make a big difference with certain versions of Windows.

    You might also try the MetaFrame Installation and Tuning Tips. You might find a more recent version if you dig around.

    --
    "Lawyers are for sucks."
    - Doug McKenzie
  2. why are you asking this here? by kevin+lyda · · Score: 4, Insightful

    ask microsoft or citrix. go buy their books or their cdrom reference libraries.

    you paid for licenses and support, now go get your money's worth. why are you asking a bunch of (mainly) free software people who probably don't know the best answer?

    and if you think we do, why don't you use the software we use?

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  3. A similar problem by Kj0n · · Score: 4, Interesting

    I once heard of a similar problem with a NT server running Terminal Server and several users accessing it from a UNIX machine. The CPU usage of Excel would suddenly go to 100% and stay there.

    Apparently, users used Shift + arrow key to switch to another virtual desktop. Unfortunately Excel went into a busy loop after the Shift key was pressed (it was busy waiting for the next key) and stayed there until the user switched back to the Terminal Server window. This resulted in Excel taking the entire CPU.

  4. Re:Throttle the processes programmatically by borgboy · · Score: 4, Informative

    Actually, if he's running Win2k server, he can use the Job Object API
    This API allows you to set per-process limits on cpu, memory, user mode execution time, min/max working set, processor affinity, thread priority, UI restrictions, and security restrictions.
    I believe that Win2k Datacenter Server comes with a Job Object MMC for creating Job Objects / adding processes to a Job Object.

    --
    meh.