Re: I/O Speed Comparisons

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On Fri, Mar 29, 2013 at 01:46:16PM -0700, Josh Durgin wrote:
> The issue was that the qemu rbd driver was blocking the main qemu
> thread when flush was called, since it was using a synchronous flush.
> Fixing this involves patches to librbd to add an asynchronous flush,
> and a patch to qemu to use it.
> 
> The ceph patches are in the next and master branches, and will be
> backported to bobtail. The patch for qemu is at [1] if anyone wants to
> try it out.

Yay! Thanks a lot. Will do. 

> Josh
> 
> [1] http://lists.gnu.org/archive/html/qemu-devel/2013-03/msg05367.html

Wolfgang

-- 
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