Re: [Qemu-devel] [PATCH] vpc: unlock Coroutine lock to make IO submit Concurrently

2019-03-15 Thread Paolo Bonzini
On 15/03/19 15:04, Zhengui li wrote: > Concurrent IO becomes serial IO because of the qemu Coroutine lock, > which reduce IO performance severely. > > So unlock Coroutine lock before bdrv_co_pwritev and > bdrv_co_preadv to fix it. > > Signed-off-by: Zhengui li > --- > block/vpc.c | 4 > 1

[Qemu-devel] [PATCH] vpc: unlock Coroutine lock to make IO submit Concurrently

2019-03-15 Thread Zhengui li
Concurrent IO becomes serial IO because of the qemu Coroutine lock, which reduce IO performance severely. So unlock Coroutine lock before bdrv_co_pwritev and bdrv_co_preadv to fix it. Signed-off-by: Zhengui li --- block/vpc.c | 4 1 file changed, 4 insertions(+) diff --git a/block/vpc.c b