On 10/19/20 3:44 PM, Owen Anderson wrote:
> My use case is currently using QEMU 4.0, but we will be moving to QEMU
> 4.2 soon. I do not have --enable-tcg-debug enabled.
> e979972a6a1 does look promising, and like it might deliver increased
> performance for our use case. It looks like the code in
On Mon, Oct 19, 2020 at 11:22 AM Richard Henderson
wrote:
>
> (1) What qemu version are you looking at and,
> (2) Do you have --enable-tcg-debug enabled?
My use case is a large automated testing environment for large C++
binaries with heavy use of virtual dispatch. The binaries are
generally not
On 9/29/20 2:32 PM, Owen Anderson wrote:
> Hello,
>
> I would like to request feedback on the following patch, which I do
> not believe should be applied to master as-is. The idea here is to
> avoid gathering the full CPU state in the fast path of an indirect
> branch lookup when running in user
nch lookups from the hot stack traces entirely.
> >
> > Thank you,
> >
> > --Owen
> >
> > From 3d96db17d3baacb92ef1bc5e70ef06b97d06a0ae Mon Sep 17 00:00:00 2001
> > From: Owen Anderson
> > Date: Tue, 29 Sep 2020 13:47:00 -0700
> > Subject: [
son
> Date: Tue, 29 Sep 2020 13:47:00 -0700
> Subject: [RFC] Don't lookup full CPU state in the indirect branch fast path on
> AArch64 when running in user mode.
>
> Most of the CPU state can't be changed in user mode, so this is useless work.
>
> Signed-off-by: Owen
001
From: Owen Anderson
Date: Tue, 29 Sep 2020 13:47:00 -0700
Subject: [RFC] Don't lookup full CPU state in the indirect branch fast path on
AArch64 when running in user mode.
Most of the CPU state can't be changed in user mode, so this is useless work.
Signed-off-by: Owen Anderson
--
