From: Paolo Bonzini <pbonzini@redhat.com>
To: Jan Kiszka <jan.kiszka@siemens.com>
Cc: Stefan Weil <weil@mail.berlios.de>,
Anthony Liguori <aliguori@us.ibm.com>,
"qemu-devel@nongnu.org" <qemu-devel@nongnu.org>,
Peter Portante <pportant@redhat.com>
Subject: Re: [Qemu-devel] [PATCH] qemu-clock: add an alarm timer based on timerfd
Date: Wed, 19 Sep 2012 10:39:02 +0200 [thread overview]
Message-ID: <505984A6.3030900@redhat.com> (raw)
In-Reply-To: <505977CD.7000404@siemens.com>
Il 19/09/2012 09:44, Jan Kiszka ha scritto:
>> > Looks good. I think Peter Portante tested something similar, and found no big
>> > difference between the two. But it's a good thing and, in my opinion, for
>> > non-timerfd OSes we should simply adjust the select() timeout and not bother
>> > with signals.
> What would be the advantage of timerfd over select? On Linux, both use
> hrtimers (and low slack for RT processes). I'm starting to like the
> select/WaitForMultipleObjects pattern as it would allow to consolidate
> over basically two versions of timers and simplify the code.
Oh, I didn't know this. Even better.
Paolo
next prev parent reply other threads:[~2012-09-19 8:39 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-09-18 20:37 [Qemu-devel] [PATCH] qemu-clock: add an alarm timer based on timerfd Anthony Liguori
2012-09-19 7:26 ` Paolo Bonzini
2012-09-19 7:44 ` Jan Kiszka
2012-09-19 8:39 ` Paolo Bonzini [this message]
2012-09-19 14:15 ` Peter Portante
2012-09-19 14:27 ` Jan Kiszka
2012-09-20 5:51 ` Peter Portante
2012-09-19 16:55 ` Avi Kivity
2012-09-19 17:13 ` Alon Ziv
2012-09-20 2:54 ` Anthony Liguori
2012-09-19 16:04 ` Stefan Weil
2012-09-19 16:12 ` Paolo Bonzini
2012-09-19 16:22 ` Stefan Weil
2012-09-19 14:20 ` Peter Portante
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