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Sophos on Citrix high cpu utilisation

ajsmith

I am finding significant performance problems with Sophos on our Citrix Xenapp 5 presentation servers (W2k3).  I have recently been seeing very high CPU utilisation - 50%+ for prolonged periods which is killing performance on the servers.  I have a seperate policy for the Citrix servers which includes windows exclusions for the Citrix program folder, UNC for roaming profiles, and the page file drive.  Can anyone share best practice for a successful deployment on Citrix or experience of similar problems and how they can be overcome?

Thanks.

:14191


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    Thanks, firstly the settings seem ok and shouldn't contribute to any performance problems.  However exclusions can't be variables so: %AppData%  will not work as it will not be expanded.

    Also directory exclusions must have a trailing backslash otherwise they are seen as file exclusions.

    So:

    M:\Program Files\Citrix \

    Also worth exclusing is:
    M:\Progra~1\Citrix\

    If that is the short 8:3 form on the machine.

    I guess if the symptom is experienced quite often you could exclude, as a temporary measure the drives listed in the exclusion list you have just to prove that exclusions would help if they are narrowed down.

    Regards,

    Jak

    :14209
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  • 0

    Thanks, firstly the settings seem ok and shouldn't contribute to any performance problems.  However exclusions can't be variables so: %AppData%  will not work as it will not be expanded.

    Also directory exclusions must have a trailing backslash otherwise they are seen as file exclusions.

    So:

    M:\Program Files\Citrix \

    Also worth exclusing is:
    M:\Progra~1\Citrix\

    If that is the short 8:3 form on the machine.

    I guess if the symptom is experienced quite often you could exclude, as a temporary measure the drives listed in the exclusion list you have just to prove that exclusions would help if they are narrowed down.

    Regards,

    Jak

    :14209
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