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authorIngo Molnar <mingo@elte.hu>2009-02-26 18:47:11 +0100
committerIngo Molnar <mingo@elte.hu>2009-02-26 18:44:06 +0100
commit14131f2f98ac350ee9e73faed916d2238a8b6a0d (patch)
treebf490d104276142e914f1245bbc9f44cb0d2bc9b /include/asm-generic
parent6409c4da289d6905f7ae2bd0630438368439bda2 (diff)
tracing: implement trace_clock_*() APIs
Impact: implement new tracing timestamp APIs Add three trace clock variants, with differing scalability/precision tradeoffs: - local: CPU-local trace clock - medium: scalable global clock with some jitter - global: globally monotonic, serialized clock Make the ring-buffer use the local trace clock internally. Acked-by: Peter Zijlstra <peterz@infradead.org> Acked-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
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