From: Gleb Natapov <gleb@redhat.com>
To: Hristo Tomov <axis.vo@gmail.com>
Cc: kvm@vger.kernel.org
Subject: Re: Problem with shared L2 cache
Date: Fri, 22 Jan 2010 17:32:18 +0200 [thread overview]
Message-ID: <20100122153218.GN2076@redhat.com> (raw)
In-Reply-To: <4e2ada971001220631u3bcf0f45ycc0d4723c2dd277c@mail.gmail.com>
On Fri, Jan 22, 2010 at 04:31:50PM +0200, Hristo Tomov wrote:
> Hello!
>
> I have following problem with KVM. I have quad-core processor
> Xeon X7350 ( 8MB L2 cache ). The processor shares 4 MB L2 cache on two
> cores. By XEN emulation the guest system have 4 MB cache at disposal.
>
Cache information is meaningless in virtual environment. Your
performance problem lies somewhere else. Trying -cpu host is a good idea
nevertheless.
--
Gleb.
prev parent reply other threads:[~2010-01-22 15:32 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-01-22 14:31 Problem with shared L2 cache Hristo Tomov
2010-01-22 14:38 ` RW
2010-01-22 15:32 ` Gleb Natapov [this message]
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