OpenVZ Forum: Support » Should I enable or disable HyperThreading?

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Re: Should I enable or disable HyperThreading? [message #38511 is a reply to message #38508]

Mon, 28 December 2009 19:43

mustardman
Messages: 91
Registered: October 2009

Member

Thanks for the reply.

I am aware of what HT is and what it does. I am interested in real world experiences on OpenVZ.

One advantage from a business perspective is that it doubles the amount of cores as interpreted by OpenVZ. So regardless of what is REALLY happening in hardware, container customers are given the impression they are on 2 cores when really it's only 1 core. Or 4 when it's only 2, 8 when it's only 4.

Yes, I am aware that is more a cosmetic thing but in the VPS business, impressions are important. Some of it is real performance improvement on the node but of course not as much as real physical cores.

I am curious if the openVZ kernel is optimized for HT and what sorts of improvements I can expect to see to determine if it is worth even bothering.

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[Message index]

		Should I enable or disable HyperThreading? By: mustardman on Mon, 21 December 2009 21:51
		Re: Should I enable or disable HyperThreading? By: foxb on Mon, 28 December 2009 12:08
		Re: Should I enable or disable HyperThreading? By: mustardman on Mon, 28 December 2009 19:43
		Re: Should I enable or disable HyperThreading? By: gordan on Tue, 29 December 2009 07:14

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