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Re: [Qemu-devel] [PATCH 21/22] tcg: enable per-thread TCG for softmmu
From: |
Emilio G. Cota |
Subject: |
Re: [Qemu-devel] [PATCH 21/22] tcg: enable per-thread TCG for softmmu |
Date: |
Sun, 9 Jul 2017 23:54:16 -0400 |
User-agent: |
Mutt/1.5.24 (2015-08-30) |
On Sun, Jul 09, 2017 at 11:48:53 -1000, Richard Henderson wrote:
> On 07/09/2017 11:29 AM, Emilio G. Cota wrote:
(snip)
> >Exactly. Also, in user-mode "vCPU threads" (i.e. host threads) come and
> >go all the time, so this doesn't work well with having a single
> >code_gen_buffer, which I assumed was non-negotiable.
>
> Ah, yes. For any subdivision N of code_gen_buffer that we choose, at some
> point we may have N+1 threads and need to do Something Else.
>
> That's probably something worth commenting somewhere with the "first"
> #ifndef CONFIG_USER_ONLY.
Yep, will do.
Thanks,
Emilio
[Qemu-devel] [PATCH 17/22] tcg: distribute profiling counters across TCGContext's, Emilio G. Cota, 2017/07/09