Fighting Citrix as a VM - ThreadMaster?

[J1mbo]

I have an issue with some Citrix servers (Win2k3) whereby a poor quality app is able to completely max out the box killing it pretty much completely. VM has 2 vCPU allocated, server is R610. vSphere CPU trace shows 100% CPU when this happens, and on the occasion I have had console access surviving Task Manager shows the rogue process(es), each single-threaded, running at 100% per core (i.e. 50% each if there were two).

A quick google led me to ThreadMaster (blog on it here).

This wasn't so much a problem on physical servers because they had 8 cores, hence two (or a few more) dodgy processes still left plenty of free CPU resource.

Any thoughts or experiences would bre greatly appreciated!

[Linjo]

TScale have worked fine for me in the past, That is what is left after VMware bought the other RTO Products:

http://www.rtosoft.com/products/TScale/TScale.htm

Best regards,

Linjo

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[DaviesJ]

Have a look at Appsense performance manager. It will restrict your rogue processes to a predefined %.

http://www.appsense.com/products/

[alphenit · Accepted solution]

Maybe, the internal Citrix CPU management tools can help out...? (which were licensed from RTO if I'm not mistaken)

Have a look at this video:

http://www.citrix.com/tv/videos/1361

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[AWo]

BTW, just a side note: at the German Virtualization Forum 2010 a customer case was shown regarding Citrix 32 Bit virtualization with VMware:

About 660 Citrix servers got virtualized on 166 ESX hosts with 160 users per ESX host in a 4(Citrix):1(ESX) relation. They strongly recommended to use Nehalem CPU's with HT enabled and not to install the VMware Tools with the default settings (no HGFS module, no bubble driver).

AWo

VCP 3 & 4

Author @ vmwire.net

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[J1mbo]

Many thanks for the input on this. The Citrix built-in solution looks to be exactly what I need.

Thanks

http://blog.peacon.co.uk

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