[0/1] Patch to adjust coroutine pool size adaptively

Message

成川 弘樹 Jan. 6, 2022, 8:20 a.m. UTC

We encountered random disk IO performance drop since qemu-5.0.0, and this patch fixes it.

Commit message in c740ad92 implied to adjust coroutine pool size adaptively, so I tried to implement this.

Could you review this patch?

Hiroki Narukawa (1):
  util: adjust coroutine pool size to virtio block queue

 hw/block/virtio-blk.c    |  3 +++
 include/qemu/coroutine.h |  5 +++++
 util/qemu-coroutine.c    | 15 +++++++++++----
 3 files changed, 19 insertions(+), 4 deletions(-)