Am 16.06.2011 16:43, schrieb Kevin Wolf:
Am 16.06.2011 16:28, schrieb Christoph Hellwig:
On Wed, Jun 15, 2011 at 09:46:10AM -0400, Federico Simoncelli wrote:
qemu-img currently writes disk images using writeback and filling
up the cache buffers which are then flushed by the kernel preventing
On Wed, Jun 15, 2011 at 09:46:10AM -0400, Federico Simoncelli wrote:
qemu-img currently writes disk images using writeback and filling
up the cache buffers which are then flushed by the kernel preventing
other processes from accessing the storage.
This is particularly bad in cluster
Am 16.06.2011 16:28, schrieb Christoph Hellwig:
On Wed, Jun 15, 2011 at 09:46:10AM -0400, Federico Simoncelli wrote:
qemu-img currently writes disk images using writeback and filling
up the cache buffers which are then flushed by the kernel preventing
other processes from accessing the
- Original Message -
From: Christoph Hellwig h...@lst.de
To: Federico Simoncelli fsimo...@redhat.com
Cc: k...@vger.kernel.org, kw...@redhat.com, qemu-devel@nongnu.org,
a...@redhat.com
Sent: Thursday, June 16, 2011 4:28:09 PM
Subject: Re: [Qemu-devel] [PATCH] qemu-img: Add cache
qemu-img currently writes disk images using writeback and filling
up the cache buffers which are then flushed by the kernel preventing
other processes from accessing the storage.
This is particularly bad in cluster environments where time-based
algorithms might be in place and accessing the
