tree e9512fe2fb45ad8555dcda61f2ee40314889e790
parent 923709896b1b01fb982c93492ad01b233e6b6023
author Xiao Guangrong <xiaoguangrong@tencent.com> 1534839020 +0800
committer Juan Quintela <quintela@redhat.com> 1534934051 +0200

migration: do not wait for free thread

Instead of putting the main thread to sleep state to wait for
free compression thread, we can directly post it out as normal
page that reduces the latency and uses CPUs more efficiently

A parameter, compress-wait-thread, is introduced, it can be
enabled if the user really wants the old behavior

Reviewed-by: Peter Xu <peterx@redhat.com>
Signed-off-by: Xiao Guangrong <xiaoguangrong@tencent.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>