How to profile the disk io performed through mmaps?

Yuri yuri at rawbw.com
Wed Jul 29 00:34:02 UTC 2009


I have a file mmapped to memory area and partially modified this way.

Is there a way to know what are the actual disk writes/reads done on the 
file in this scenario?
Would kqueue events on file's vnode be triggered for mmapped writes?

Yuri



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