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From: Sylvain Munaut <s.munaut@whatever-company.com>
To: Sage Weil <sage@inktank.com>
Cc: Nick Couchman <Nick.Couchman@seakr.com>,
	Wido den Hollander <wido@42on.com>,
	pasik@iki.fi, Bernard Grymonpon <bernard@openminds.be>,
	ceph-devel@vger.kernel.org
Subject: Re: Xen blktap driver for Ceph RBD : Anybody wants to test ? :p
Date: Fri, 26 Apr 2013 19:10:15 +0200	[thread overview]
Message-ID: <CAF6-1L6tCnXWjyO0_z=59p+Kutty1C4pLGU6MLuH3xCX_TYiuw@mail.gmail.com> (raw)
In-Reply-To: <alpine.DEB.2.00.1304260851200.4184@cobra.newdream.net>

Hi,

> Is this in the blktap layer or in librbd?  FWIW, when rbd cache = true,
> the writes will get merged by the cache and written out in large extents
> on flush.

In the blktap layer.

I don't have the cache enabled because FLUSH request from the VM are
not forwarded down to that layer, when you ack a request, it consider
that it's been written to disk.

Cheers,

    Sylvain

  reply	other threads:[~2013-04-26 17:10 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
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 [this message]
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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