ring-buffer: only periodically call cond_resched to ring-buffer-benchmark

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Calling cond_resched at every iteration of the loop adds a bit of
overhead to the benchmark.

This patch does two things.

1) only calls cond-resched when CONFIG_PREEMPT is not enabled
2) only calls cond-resched after so many traces has been performed.

[ Impact: less overhead to the ring-buffer-benchmark ]

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>

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Steven Rostedt 2009-05-07 14:20:28 -04:00 • committed by Steven Rostedt

parent 65b7724204

commit 0574ea421b

1 changed files with 9 additions and 2 deletions

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kernel/trace/ring_buffer_benchmark.c

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