Messages in this thread | | | Date | Tue, 16 Oct 2012 13:09:55 -0500 | Subject | VDSO gettimeofday() x86_64 linux 3.2 | From | wilson self <> |
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I noticed recently that my get time of day calls are quite a bit slower than I would have expected; and it would see that a likely cause is that they are not going via vdso, but rather a system call.
In older kernels there was kernel.vsyscall64 parameter to enable them, but this seems to be gone in later kernel releases. What config option or parameter might I be missing that could cause gettimeofday() to use the fallback methods?
Thanks wilson
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