On 09/27/2017 11:23 PM, Liu Qing wrote:
> On Wed, Sep 27, 2017 at 02:07:02PM -0400, John Ferlan wrote:
>>
>>
>> On 09/27/2017 08:42 AM, Pavel Hrdina wrote:
>>> On Wed, Sep 27, 2017 at 02:24:12PM +0200, Pavel Hrdina wrote:
On Tue, Sep 26, 2017 at 05:06:37PM -0400, John Ferlan wrote:
>
>>>
On Wed, Sep 27, 2017 at 02:07:02PM -0400, John Ferlan wrote:
>
>
> On 09/27/2017 08:42 AM, Pavel Hrdina wrote:
> > On Wed, Sep 27, 2017 at 02:24:12PM +0200, Pavel Hrdina wrote:
> >> On Tue, Sep 26, 2017 at 05:06:37PM -0400, John Ferlan wrote:
> >>>
> >>>
> >>> On 09/18/2017 11:45 PM, Liu Qing wro
On 09/27/2017 08:42 AM, Pavel Hrdina wrote:
> On Wed, Sep 27, 2017 at 02:24:12PM +0200, Pavel Hrdina wrote:
>> On Tue, Sep 26, 2017 at 05:06:37PM -0400, John Ferlan wrote:
>>>
>>>
>>> On 09/18/2017 11:45 PM, Liu Qing wrote:
Qcow2 small IO random write performance will drop dramatically if th
On Wed, Sep 27, 2017 at 02:24:12PM +0200, Pavel Hrdina wrote:
> On Tue, Sep 26, 2017 at 05:06:37PM -0400, John Ferlan wrote:
> >
> >
> > On 09/18/2017 11:45 PM, Liu Qing wrote:
> > > Qcow2 small IO random write performance will drop dramatically if the l2
> > > cache table could not cover the who
On Tue, Sep 26, 2017 at 05:06:37PM -0400, John Ferlan wrote:
>
>
> On 09/18/2017 11:45 PM, Liu Qing wrote:
> > Qcow2 small IO random write performance will drop dramatically if the l2
> > cache table could not cover the whole disk. This will be a lot of l2
> > cache table RW operations if cache m
On Tue, Sep 26, 2017 at 05:06:37PM -0400, John Ferlan wrote:
>
>
> On 09/18/2017 11:45 PM, Liu Qing wrote:
> > Qcow2 small IO random write performance will drop dramatically if the l2
> > cache table could not cover the whole disk. This will be a lot of l2
> > cache table RW operations if cache m
On 09/18/2017 11:45 PM, Liu Qing wrote:
> Qcow2 small IO random write performance will drop dramatically if the l2
> cache table could not cover the whole disk. This will be a lot of l2
> cache table RW operations if cache miss happens frequently.
>
> This patch exports the qcow2 driver paramet
Qcow2 small IO random write performance will drop dramatically if the l2
cache table could not cover the whole disk. This will be a lot of l2
cache table RW operations if cache miss happens frequently.
This patch exports the qcow2 driver parameter
l2-cache-size/refcount-cache-size, first added in