From: Igor Mammedov <imammedo@redhat.com>
To: Howard Spoelstra <hsp.cat7@gmail.com>
Cc: "Peter Maydell" <peter.maydell@linaro.org>,
"Richard Henderson" <richard.henderson@linaro.org>,
"QEMU Developers" <qemu-devel@nongnu.org>,
"Niek Linnenbank" <nieklinnenbank@gmail.com>,
qemu-arm <qemu-arm@nongnu.org>,
"Paolo Bonzini" <pbonzini@redhat.com>,
"Philippe Mathieu-Daudé" <philmd@redhat.com>
Subject: Re: Sudden slowdown of ARM emulation in master
Date: Wed, 26 Feb 2020 10:11:53 +0100 [thread overview]
Message-ID: <20200226101153.2fd3f7f8@redhat.com> (raw)
In-Reply-To: <CABLmASHCnd-BmdbgyCb+Sjmau5A+nqwWEwjqviabibzjMxe=5w@mail.gmail.com>
On Wed, 26 Feb 2020 09:45:48 +0100
Howard Spoelstra <hsp.cat7@gmail.com> wrote:
> On Wed, Feb 26, 2020 at 9:42 AM Peter Maydell <peter.maydell@linaro.org>
> wrote:
>
> > On Tue, 25 Feb 2020 at 23:08, Niek Linnenbank <nieklinnenbank@gmail.com>
> > wrote:
> >
> > > Just now I was working on some small fixes for the cubieboard machine
> > and rebasing my Allwinner H3 branches.
> > > While doing some testing, I noticed that suddenly the machines were much
> > slower than before.
> > > I only see this happening when I rebase to this commit:
> > > ca6155c0f2bd39b4b4162533be401c98bd960820 ("Merge tag 'patchew/
> > 20200219160953.13771-1-imammedo@redhat.com' of
> > https://github.com/patchew-project/qemu into HEAD")
> >
> > Yeah, I noticed a slowdown yesterday as well, but haven't tracked it down
> > as yet. The first thing would be to do a git bisect to try to narrow
> > down what commit caused it.
> >
> > thanks
> > -- PMM
> >
>
>
> Perhaps related? I noticed a slow down on qemu-system-ppc and tracked it
> down here:
> https://lists.nongnu.org/archive/html/qemu-devel/2020-02/msg07262.html
There might be some implicit dependency in TCG that depends on ram_size.
I'm looking for what it could be
> Best,
> Howard
next prev parent reply other threads:[~2020-02-26 9:18 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-25 23:07 Sudden slowdown of ARM emulation in master Niek Linnenbank
2020-02-26 8:41 ` Peter Maydell
2020-02-26 8:44 ` Philippe Mathieu-Daudé
2020-02-26 8:48 ` Peter Maydell
2020-02-26 8:51 ` Philippe Mathieu-Daudé
2020-02-26 8:45 ` Howard Spoelstra
2020-02-26 9:11 ` Igor Mammedov [this message]
2020-02-26 9:19 ` Igor Mammedov
2020-02-26 9:32 ` Howard Spoelstra
2020-02-26 10:14 ` Igor Mammedov
2020-02-26 10:03 ` Peter Maydell
2020-02-26 10:36 ` Mark Cave-Ayland
2020-02-26 14:13 ` Alex Bennée
2020-02-26 14:45 ` Igor Mammedov
2020-02-26 15:29 ` Alex Bennée
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20200226101153.2fd3f7f8@redhat.com \
--to=imammedo@redhat.com \
--cc=hsp.cat7@gmail.com \
--cc=nieklinnenbank@gmail.com \
--cc=pbonzini@redhat.com \
--cc=peter.maydell@linaro.org \
--cc=philmd@redhat.com \
--cc=qemu-arm@nongnu.org \
--cc=qemu-devel@nongnu.org \
--cc=richard.henderson@linaro.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).