From: "Edgar E. Iglesias" <edgar.iglesias@gmail.com>
To: Jan Kiszka <jan.kiszka@siemens.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>,
Anthony Liguori <aliguori@us.ibm.com>,
Marcelo Tosatti <mtosatti@redhat.com>,
qemu-devel@nongnu.org, Aurelien Jarno <aurelien@aurel32.net>
Subject: Re: [Qemu-devel] [PATCH v3 0/3] io-thread optimizations
Date: Mon, 22 Aug 2011 21:47:47 +0200 [thread overview]
Message-ID: <20110822194747.GA17772@zapo> (raw)
In-Reply-To: <cover.1314027959.git.jan.kiszka@siemens.com>
On Mon, Aug 22, 2011 at 05:46:00PM +0200, Jan Kiszka wrote:
> Rebased as requested, also fixing a compiler warning about last_io being
> write-only on !CONFIG_IOTHREAD. That "__attribute__ ((unused))" in patch
> 2 can be removed again when CONFIG_IOTHREAD becomes mandatory.
>
> Jan Kiszka (3):
> Do not drop global mutex for polled main loop runs
> Poll main loop after I/O events were received
> Do not kick vcpus in TCG mode
>
> cpus.c | 2 +-
> sysemu.h | 2 +-
> vl.c | 22 ++++++++++++++++------
> 3 files changed, 18 insertions(+), 8 deletions(-)
I tested with SMP guests on SMP hosts and can confirm that this
brings a huge speed up. Last time I tested these patches I only
ran UP, and saw no difference.
Acked-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
next prev parent reply other threads:[~2011-08-22 19:47 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-08-22 15:46 [Qemu-devel] [PATCH v3 0/3] io-thread optimizations Jan Kiszka
2011-08-22 15:46 ` [Qemu-devel] [PATCH v3 1/3] Do not drop global mutex for polled main loop runs Jan Kiszka
2011-08-22 15:46 ` [Qemu-devel] [PATCH v3 2/3] Poll main loop after I/O events were received Jan Kiszka
2011-08-22 15:46 ` [Qemu-devel] [PATCH v3 3/3] Do not kick vcpus in TCG mode Jan Kiszka
2011-08-22 19:47 ` Edgar E. Iglesias [this message]
2011-08-22 20:20 ` [Qemu-devel] [PATCH v3 0/3] io-thread optimizations Anthony Liguori
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