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Re: [Qemu-devel] Update on TCG Multithreading

From: Kirill Batuzov
Subject: Re: [Qemu-devel] Update on TCG Multithreading
Date: Tue, 2 Dec 2014 18:14:57 +0300 (MSK)
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).


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