Re: [libvirt] [PATCH] Add qcow2 cache configuration

2017-08-30 Thread Liu Qing
On Wed, Aug 30, 2017 at 11:12:02AM +0200, Martin Kletzander wrote: > On Wed, Aug 30, 2017 at 04:07:16PM +0800, Liu Qing wrote: > >Random write IOPS will drop dramatically if qcow2 l2 cache could not > >cover the whole disk. This patch give libvirt user a chance to adjust > >the qcow2 cache configur

Re: [libvirt] [PATCH] Add qcow2 cache configuration

2017-08-30 Thread Martin Kletzander
On Wed, Aug 30, 2017 at 04:07:16PM +0800, Liu Qing wrote: Random write IOPS will drop dramatically if qcow2 l2 cache could not cover the whole disk. This patch give libvirt user a chance to adjust the qcow2 cache configuration. Thanks for the patch, but it has no documentation, no capability c

[libvirt] [PATCH] Add qcow2 cache configuration

2017-08-30 Thread Liu Qing
Random write IOPS will drop dramatically if qcow2 l2 cache could not cover the whole disk. This patch give libvirt user a chance to adjust the qcow2 cache configuration. Signed-off-by: Liu Qing --- src/conf/domain_conf.c| 30 ++ src/qemu/qemu_command.c | 6