討論串excessive use of gettimeofday(2) and other syscalls
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On Tue, Sep 6, 2011 at 7:15 PM, Rayson Ho <raysonlogin@gmail.com> wrote:. > There are some recent discussions on the freebsd-current list. The. > infr
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There are some recent discussions on the freebsd-current list. The. infrastructure is there to provide a common shared page for processes. to mmap int
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I believe that Linux uses a less precise clock that scales better. across cores and is much faster than the precise clock FreeBSD uses. even on one co
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On Tue, Sep 6, 2011 at 6:44 PM, Manish Vachharajani. <manishv@lineratesystems.com> wrote:. > Lots of libraries assume that time is fast because it. >
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Under 7.3 (haven't checked 8 or 9) this issue crops up because the. time system call calls gettimeofday under the hood (see. lib/libc/gen/time.c). As
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