migration/block: limit the number of parallel I/O requests
the current implementation submits up to 512 I/O requests in parallel which is much to high especially for a background task. This patch adds a maximum limit of 16 I/O requests that can be submitted in parallel to avoid monopolizing the I/O device. Signed-off-by: NPeter Lieven <pl@kamp.de> Message-Id: <1520507908-16743-5-git-send-email-pl@kamp.de> Reviewed-by: NJuan Quintela <quintela@redhat.com> Signed-off-by: NDr. David Alan Gilbert <dgilbert@redhat.com>
Showing
想要评论请 注册 或 登录