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(parent: 72e2fe3) | patch
tracing: Only calculate stats of tracepoint benchmarks for 2^32 times
authorSteven Rostedt (Red Hat) <rostedt@goodmis.org>
Fri, 6 Jun 2014 03:34:02 +0000 (23:34 -0400)
committerSteven Rostedt <rostedt@goodmis.org>
Fri, 6 Jun 2014 04:41:38 +0000 (00:41 -0400)
commit34839f5a69989c0ee48386a788fba37eb75910f7
tree5f93240558f6028500b0373e740e907990680091tree | snapshot (tar.gz zip)
parent72e2fe38eac2dbf258d4295d75f78b123dd5b823commit | diff
tracing: Only calculate stats of tracepoint benchmarks for 2^32 times

When calculating the average and standard deviation, it is required that
the count be less than UINT_MAX, otherwise the do_div() will get
undefined results. After 2^32 counts of data, the average and standard
deviation should pretty much be set anyway.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
kernel/trace/trace_benchmark.c diff | blob | blame | history