On Mon, Aug 4, 2014 at 6:21 PM, Stefan Hajnoczi wrote:
> On Fri, Aug 01, 2014 at 03:42:05PM +0800, Ming Lei wrote:
>> On Thu, Jul 31, 2014 at 5:18 PM, Paolo Bonzini wrote:
>> > Il 31/07/2014 05:22, Ming Lei ha scritto:
>> >>> >
>> >>> > The problem is that g_slice here is not using the slab-style
On Fri, Aug 01, 2014 at 03:42:05PM +0800, Ming Lei wrote:
> On Thu, Jul 31, 2014 at 5:18 PM, Paolo Bonzini wrote:
> > Il 31/07/2014 05:22, Ming Lei ha scritto:
> >>> >
> >>> > The problem is that g_slice here is not using the slab-style allocator
> >>> > because the object is larger than roughly 5
On Thu, Jul 31, 2014 at 5:18 PM, Paolo Bonzini wrote:
> Il 31/07/2014 05:22, Ming Lei ha scritto:
>>> >
>>> > The problem is that g_slice here is not using the slab-style allocator
>>> > because the object is larger than roughly 500 bytes. One solution would
>>> > be to make virtqueue_pop/vring_p
Il 31/07/2014 05:22, Ming Lei ha scritto:
>> >
>> > The problem is that g_slice here is not using the slab-style allocator
>> > because the object is larger than roughly 500 bytes. One solution would
>> > be to make virtqueue_pop/vring_pop allocate a VirtQueueElement of the
>> > right size (and vi
On Wed, Jul 30, 2014 at 10:14 PM, Paolo Bonzini wrote:
> Il 30/07/2014 13:39, Ming Lei ha scritto:
>> g_slice_new(VirtIOBlockReq), its free pair and access the instance
>> is a bit slow since sizeof(VirtIOBlockReq) takes more than 40KB,
>> so use object pool to speed up its allocation and release.
On Wed, Jul 30, 2014 at 04:14:09PM +0200, Paolo Bonzini wrote:
> Il 30/07/2014 13:39, Ming Lei ha scritto:
> > g_slice_new(VirtIOBlockReq), its free pair and access the instance
> > is a bit slow since sizeof(VirtIOBlockReq) takes more than 40KB,
> > so use object pool to speed up its allocation an
Il 30/07/2014 13:39, Ming Lei ha scritto:
> g_slice_new(VirtIOBlockReq), its free pair and access the instance
> is a bit slow since sizeof(VirtIOBlockReq) takes more than 40KB,
> so use object pool to speed up its allocation and release.
>
> With this patch, ~5% throughput improvement is observed
g_slice_new(VirtIOBlockReq), its free pair and access the instance
is a bit slow since sizeof(VirtIOBlockReq) takes more than 40KB,
so use object pool to speed up its allocation and release.
With this patch, ~5% throughput improvement is observed in the VM
based on server.
Signed-off-by: Ming Lei
