hi: 2011/1/6 Pavan Savoy <pavan_savoy@sify.com>:
On Thu, Jan 6, 2011 at 12:23 PM, loody <miloody@gmail.com> wrote:
hi:
2011/1/6 Pavan Savoy <pavan_savoy@sify.com>:
On Thu, Jan 6, 2011 at 11:48 AM, loody <miloody@gmail.com> wrote:
Dear all: I know complete will wake up the process who call wait_complete. Is there any methods I can use to measure how long from calling complete to the process that detect done=1? Regards, miloody
returned value of wait_for_completion_timeout ? No. I want to measure the duration of complete to the time of wake up process who is pending on wait.
Ah, Ok, Got it... I would do a copy of jiffies before the complete and do a diff for jiffies after the wait_for_ ...
I suppose there would be much more better/optimized way .... thank U :) why I ask so is I am porting kernel to other platform right now. and I found the time of getting complete is too long. What I mean is function A call wait_complete_timeout function B complete theoretically A will get complete and leave successfully but my platform A will told me that before timeout the complete is not got.
Regards, miloody