From: Sylvain Munaut <s.munaut@whatever-company.com>
To: Bernard Grymonpon <bernard@openminds.be>
Cc: "ceph-devel@vger.kernel.org" <ceph-devel@vger.kernel.org>
Subject: Re: Xen blktap driver for Ceph RBD : Anybody wants to test ? :p
Date: Tue, 23 Apr 2013 17:06:04 +0200 [thread overview]
Message-ID: <CAF6-1L5bUiSO-6YLvDitb6GKhuiZJSy4RLwD27_HODsR1y-KGw@mail.gmail.com> (raw)
In-Reply-To: <E6E1667B-879F-4BF4-85DE-308C01BB7930@openminds.be>
Hi,
> - client dom0: a simple quick debootstrap, and a low amount of memory to bypass buffers
I assume you meant domU ?
You ran those tests in a VM right ?
> Thx for the work you've put in this! Seems to work nicely at first glance, but I'll do some more tests later on (with a more recent ceph cluster)...
Thanks for testing. When you do more tests, it'd be interesting to
compare the kernel driver with the blktap driver.
I've actually identified a bottleneck caused the Xen IO ring splitting
large requests into small 44k chunks, which tends to lower RBD
performance a lot ... I'l still investigating possible solutions to
that.
Cheers,
Sylvain
next prev parent reply other threads:[~2013-04-23 15:06 UTC|newest]
Thread overview: 96+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-04-18 15:05 Xen blktap driver for Ceph RBD : Anybody wants to test ? :p Sylvain Munaut
2013-04-18 19:35 ` Wido den Hollander
2013-04-19 14:37 ` Sylvain Munaut
2013-04-19 14:40 ` Bernard Grymonpon
2013-04-23 10:02 ` Sylvain Munaut
2013-04-23 14:56 ` Bernard Grymonpon
2013-04-23 15:06 ` Sylvain Munaut [this message]
2013-04-23 19:13 ` Bernard Grymonpon
2013-04-23 16:38 ` Nick Couchman
2013-04-23 18:51 ` Sylvain Munaut
2013-04-23 20:09 ` Nick Couchman
2013-04-26 13:07 ` Sylvain Munaut
2013-04-26 15:51 ` Sage Weil
2013-04-26 17:10 ` Sylvain Munaut
2013-04-19 6:45 ` Pasi Kärkkäinen
2013-04-19 14:41 ` [Xen-devel] " Sylvain Munaut
2013-11-29 11:05 ` James Harper
2013-11-29 15:11 ` Sylvain Munaut
2013-12-01 4:08 ` James Harper
2013-12-03 15:46 ` Sylvain Munaut
2013-04-19 14:41 ` Sylvain Munaut
2013-08-01 2:12 ` James Harper
2013-08-05 9:41 ` Sylvain Munaut
2013-08-05 9:41 ` [Xen-devel] " Sylvain Munaut
2013-08-05 9:45 ` James Harper
2013-08-05 9:45 ` [Xen-devel] " James Harper
2013-08-05 11:01 ` Sylvain Munaut
2013-08-05 11:01 ` [Xen-devel] " Sylvain Munaut
2013-08-05 11:03 ` James Harper
2013-08-05 11:03 ` James Harper
2013-08-05 11:12 ` Pasi Kärkkäinen
2013-08-05 12:03 ` [Xen-devel] " Sylvain Munaut
2013-08-05 13:35 ` George Dunlap
2013-08-05 13:55 ` Sylvain Munaut
2013-08-05 14:04 ` George Dunlap
2013-08-05 15:18 ` Wei Liu
2013-08-05 15:20 ` George Dunlap
2013-08-05 15:32 ` Wei Liu
2013-08-05 15:32 ` [Xen-devel] " Wei Liu
2013-08-05 15:20 ` George Dunlap
2013-08-05 15:18 ` Wei Liu
2013-08-05 14:04 ` George Dunlap
2013-08-05 13:55 ` Sylvain Munaut
2013-08-05 13:35 ` George Dunlap
2013-08-05 12:03 ` Sylvain Munaut
2013-08-09 0:12 ` [Xen-devel] " James Harper
2013-08-09 9:21 ` Sylvain Munaut
2013-08-09 9:21 ` [Xen-devel] " Sylvain Munaut
2013-08-11 0:51 ` James Harper
2013-08-11 1:02 ` James Harper
2013-08-11 1:02 ` [Xen-devel] " James Harper
2013-08-12 14:13 ` Sylvain Munaut
2013-08-12 23:26 ` James Harper
2013-08-12 23:26 ` [Xen-devel] " James Harper
2013-08-13 0:39 ` James Harper
2013-08-13 8:32 ` Sylvain Munaut
2013-08-13 8:32 ` [Xen-devel] " Sylvain Munaut
2013-08-13 9:12 ` James Harper
2013-08-13 9:20 ` Sylvain Munaut
2013-08-13 14:59 ` Frederik Thuysbaert
2013-08-13 14:59 ` [Xen-devel] " Frederik Thuysbaert
[not found] ` <520A4945.1030907@gmail.com>
2013-08-13 15:39 ` Sylvain Munaut
2013-08-13 23:39 ` James Harper
2013-08-13 23:43 ` Sylvain Munaut
2013-08-13 23:43 ` [Xen-devel] " Sylvain Munaut
2013-08-13 23:51 ` James Harper
2013-08-13 23:59 ` James Harper
2013-08-13 23:59 ` [Xen-devel] " James Harper
2013-08-14 13:13 ` Sylvain Munaut
2013-08-14 13:13 ` [Xen-devel] " Sylvain Munaut
2013-08-14 13:16 ` James Harper
2013-08-14 13:16 ` [Xen-devel] " James Harper
2013-08-15 7:20 ` James Harper
2013-08-15 7:20 ` [Xen-devel] " James Harper
2013-08-16 1:02 ` James Harper
2013-08-16 1:02 ` [Xen-devel] " James Harper
2013-08-13 23:51 ` James Harper
2013-08-13 23:39 ` James Harper
2013-08-14 8:43 ` Frederik Thuysbaert
2013-08-14 8:43 ` [Xen-devel] " Frederik Thuysbaert
2013-08-14 15:03 ` Sylvain Munaut
2013-08-14 15:03 ` [Xen-devel] " Sylvain Munaut
2013-08-16 8:27 ` Frederik Thuysbaert
2013-08-16 8:27 ` Frederik Thuysbaert
2013-08-14 8:47 ` Frederik Thuysbaert
2013-08-14 8:47 ` [Xen-devel] " Frederik Thuysbaert
2013-08-13 15:39 ` Sylvain Munaut
2013-08-13 21:47 ` James Harper
2013-08-13 21:47 ` [Xen-devel] " James Harper
2013-08-13 9:20 ` Sylvain Munaut
2013-08-13 9:12 ` James Harper
2013-08-13 0:39 ` James Harper
2013-08-12 14:13 ` Sylvain Munaut
2013-08-11 0:51 ` James Harper
2013-08-09 0:12 ` James Harper
-- strict thread matches above, loose matches on Subject: below --
2013-04-18 15:05 Sylvain Munaut
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