mirror of https://github.com/mkerrisk/man-pages
clock_getres.2: Note that coarse clock need architecture and VDSO support
Reported-by: Rasmus Villemoes <linux@rasmusvillemoes.dk> Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
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@ -133,6 +133,9 @@ and NTP.
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A faster but less precise version of
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.BR CLOCK_REALTIME .
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Use when you need very fast, but not fine-grained timestamps.
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Requires per-architecture support,
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and probably also architecture support for this flag in the
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.BR vdso (7).
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.TP
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.B CLOCK_MONOTONIC
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Clock that cannot be set and represents monotonic time since
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@ -148,6 +151,9 @@ and NTP.
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A faster but less precise version of
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.BR CLOCK_MONOTONIC .
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Use when you need very fast, but not fine-grained timestamps.
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Requires per-architecture support,
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and probably also architecture support for this flag in the
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.BR vdso (7).
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.TP
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.BR CLOCK_MONOTONIC_RAW " (since Linux 2.6.28; Linux-specific)"
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.\" Added in commit 2d42244ae71d6c7b0884b5664cf2eda30fb2ae68, John Stultz
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