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Re: [Qemu-devel] Update on TCG Multithreading
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From: |
Kirill Batuzov |
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Subject: |
Re: [Qemu-devel] Update on TCG Multithreading |
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Date: |
Tue, 2 Dec 2014 18:14:57 +0300 (MSK) |
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User-agent: |
Alpine 2.02 (DEB 1266 2009-07-14) |
On Mon, 1 Dec 2014, Mark Burton wrote:
>
> One issue I’d like to see more opinions on is the question of a cache per
> core, or a shared cache.
> I have heard anecdotal evidence that a shared cache gives a major performance
> benefit….
> Does anybody have anything more concrete?
There is a theoretical and experimental comparison of these approaches in
PQEMU article (you've cited it on wiki page). Only the authors call them
differently: they call cache-per-core "Separate Code Cache" (SCC) and
they call shared cache "Unified Code Cache" (UCC).
--
Kirill