|Re: high diskI/O load by sync? [message #45171 is a reply to message #45165]
||Sun, 05 February 2012 22:20
Registered: February 2012
we also find that, if we do some disk I/O critical task in a container, and meanwhile do "sync" on another, the sync in the latter will be heavily delayed. e.g., in CT1 we do |
stress -d 4
while in CT2 we do
then the sync would run more than 40 second. (for comparison, when we do nothing in CT1, CT2's sync costs only 1 second about).
could anyone confirm if the "sync" call in container would cause the whole host into sync or not?
thanks a lot!