From: Peter Lieven <pl@kamp.de>
To: Paolo Bonzini <pbonzini@redhat.com>,
ming.lei@canonical.com, Kevin Wolf <kwolf@redhat.com>,
Stefan Hajnoczi <stefanha@redhat.com>,
"qemu-devel@nongnu.org" <qemu-devel@nongnu.org>,
Markus Armbruster <armbru@redhat.com>
Subject: Re: [Qemu-devel] [RFC PATCH 3/3] qemu-coroutine: use a ring per thread for the pool
Date: Fri, 28 Nov 2014 12:21:09 +0100 [thread overview]
Message-ID: <54785AA5.9070409@kamp.de> (raw)
In-Reply-To: <547858FF.5070602@redhat.com>
Am 28.11.2014 um 12:14 schrieb Paolo Bonzini:
>> master:
>> Run operation 40000000 iterations 12.851414 s, 3112K operations/s, 321ns per coroutine
>>
>> paolo:
>> Run operation 40000000 iterations 11.951720 s, 3346K operations/s, 298ns per coroutine
> Nice. :)
>
> Can you please try "coroutine: Use __thread … " together, too? I still
> see 11% time spent in pthread_getspecific, and I get ~10% more indeed if
> I apply it here (my times are 191/160/145).
indeed:
Run operation 40000000 iterations 10.138684 s, 3945K operations/s, 253ns per coroutine
next prev parent reply other threads:[~2014-11-28 11:21 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-11-27 10:27 [Qemu-devel] [RFC PATCH 0/3] qemu-coroutine: use a ring per thread for the pool Peter Lieven
2014-11-27 10:27 ` [Qemu-devel] [RFC PATCH 1/3] Revert "coroutine: make pool size dynamic" Peter Lieven
2014-11-28 12:42 ` Stefan Hajnoczi
2014-11-28 12:45 ` Peter Lieven
2014-11-27 10:27 ` [Qemu-devel] [RFC PATCH 2/3] block/block-backend.c: remove coroutine pool reservation Peter Lieven
2014-11-27 10:27 ` [Qemu-devel] [RFC PATCH 3/3] qemu-coroutine: use a ring per thread for the pool Peter Lieven
2014-11-27 16:40 ` Paolo Bonzini
2014-11-28 8:13 ` Peter Lieven
[not found] ` <54784E55.6060405@redhat.com>
2014-11-28 10:37 ` Peter Lieven
2014-11-28 11:14 ` Paolo Bonzini
2014-11-28 11:21 ` Peter Lieven [this message]
2014-11-28 11:23 ` Paolo Bonzini
2014-11-28 11:27 ` Peter Lieven
2014-11-28 11:32 ` Peter Lieven
2014-11-28 11:46 ` Peter Lieven
2014-11-28 12:26 ` Paolo Bonzini
2014-11-28 12:39 ` Peter Lieven
2014-11-28 12:45 ` Paolo Bonzini
2014-11-28 12:49 ` Peter Lieven
2014-11-28 12:56 ` Paolo Bonzini
2014-11-28 13:17 ` Peter Lieven
2014-11-28 14:17 ` Paolo Bonzini
2014-11-28 20:11 ` Peter Lieven
2014-11-28 13:13 ` Peter Lieven
2014-11-28 12:21 ` Paolo Bonzini
2014-11-28 12:26 ` Peter Lieven
2014-11-28 12:40 ` Stefan Hajnoczi
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