From: Carsten Otte <cotte@de.ibm.com>
To: Anthony Liguori <anthony@codemonkey.ws>
Cc: kvm-devel@lists.sourceforge.net,
Marcelo Tosatti <mtosatti@redhat.com>,
Avi Kivity <avi@qumranet.com>
Subject: Re: [patch 2/2] QEMU: decrease console "refresh rate" with -nographic
Date: Wed, 16 Apr 2008 16:24:03 +0200 [thread overview]
Message-ID: <48060C03.3040405@de.ibm.com> (raw)
In-Reply-To: <480604D5.3040401@codemonkey.ws>
Anthony Liguori wrote:
> There is a 5th option. Do away with the use of posix aio. We get
> absolutely no benefit from it because it's limited to a single thread.
> Fabrice has reverted a patch to change that in the past.
How about using linux aio for it? It seems much better, because it
doesn't use userspace threads but has a direct in-kernel
implementation. I've had good performance on zldisk with that, and
it's stable.
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next prev parent reply other threads:[~2008-04-16 14:24 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-04-11 18:38 [patch 0/2] SIGIO handling changes Marcelo Tosatti
2008-04-11 18:38 ` [patch 1/2] QEMU: use SIGARLM for alarm timers, enable SIGIO on qemu_set_fd_handler2() Marcelo Tosatti
2008-04-11 18:59 ` Anthony Liguori
2008-04-11 19:44 ` Marcelo Tosatti
2008-04-13 15:05 ` Avi Kivity
2008-04-11 19:51 ` Marcelo Tosatti
2008-04-11 18:38 ` [patch 2/2] QEMU: decrease console "refresh rate" with -nographic Marcelo Tosatti
2008-04-13 16:30 ` Anders
2008-04-14 15:02 ` Marcelo Tosatti
2008-04-14 16:24 ` Avi Kivity
2008-04-14 17:24 ` Marcelo Tosatti
2008-04-14 18:31 ` Anthony Liguori
2008-04-15 5:39 ` Avi Kivity
2008-04-15 5:43 ` Carsten Otte
2008-04-15 13:40 ` Anthony Liguori
2008-04-15 13:47 ` Avi Kivity
2008-04-15 15:12 ` Marcelo Tosatti
2008-04-15 5:40 ` Avi Kivity
2008-04-15 7:26 ` Anders
2008-04-15 9:27 ` Avi Kivity
2008-04-15 14:20 ` Anthony Liguori
2008-04-15 14:45 ` Avi Kivity
2008-04-15 15:04 ` Marcelo Tosatti
2008-04-15 15:34 ` Anthony Liguori
2008-04-15 15:43 ` Avi Kivity
2008-04-15 18:14 ` Anthony Liguori
2008-04-16 8:37 ` Avi Kivity
2008-04-16 10:26 ` Anders
2008-04-16 11:23 ` Avi Kivity
2008-04-16 13:53 ` Anthony Liguori
2008-04-16 14:24 ` Carsten Otte [this message]
2008-04-17 12:53 ` Avi Kivity
2008-04-17 9:37 ` Avi Kivity
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