Poul-Henning Kamp wrote: > In message <43607DD5.3020708_at_freebsd.org>, David Xu writes: > > >>Check gettimeofday syscall, it follows every I/O syscall, I think >>our gettimeofday is tooooooo expensive, if we can directly get time from >>memory, the performance will be improved further. > > > Why would anybody take a timestamp at all I/O syscalls ? > > "I wonder why my car can only go 30 km/h with the trunk full of concrete" ? > > In a data base application I could possibly understand a timestamp > after every write. > > But after _all_ I/O syscalls ? That's just plain stupid... > Don't panic, I agree that is stupid code, but I can not change it, it is not written by me, sorry!Received on Thu Oct 27 2005 - 06:29:25 UTC
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