On Tue, Nov 15, 2011 at 04:18:52PM +0800, Liu Yuan wrote: > Umm, seems useless, I just squeeze it to the code path. any noticeable > performance penalty? With the current O_SYNC I/O model it at least means an additional log force, which on disks will be very noticeable. So unless you really see a difference in I/O patterns don't do it. |