Commit-ID: 3cf165fc2e7f221a7a95098b47eb990779e29f5f Gitweb: http://git.kernel.org/tip/3cf165fc2e7f221a7a95098b47eb990779e29f5f Author: Ingo Molnar <mingo@xxxxxxx> AuthorDate: Tue, 2 Jun 2009 23:02:59 +0200 Committer: Ingo Molnar <mingo@xxxxxxx> CommitDate: Tue, 2 Jun 2009 23:04:24 +0200 perf record: Increase mmap buffering default I've run into mmap overruns with the current 16 pages default, increase it to 128 pages. Cc: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx> Cc: Mike Galbraith <efault@xxxxxx> Cc: Paul Mackerras <paulus@xxxxxxxxx> Cc: Corey Ashford <cjashfor@xxxxxxxxxxxxxxxxxx> Cc: Marcelo Tosatti <mtosatti@xxxxxxxxxx> Cc: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx> Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx> Cc: John Kacur <jkacur@xxxxxxxxxx> LKML-Reference: <new-submission> Signed-off-by: Ingo Molnar <mingo@xxxxxxx> --- Documentation/perf_counter/builtin-record.c | 4 ++-- 1 files changed, 2 insertions(+), 2 deletions(-) diff --git a/Documentation/perf_counter/builtin-record.c b/Documentation/perf_counter/builtin-record.c index 19cba6b..8feb119 100644 --- a/Documentation/perf_counter/builtin-record.c +++ b/Documentation/perf_counter/builtin-record.c @@ -19,9 +19,9 @@ static int default_interval = 100000; static int event_count[MAX_COUNTERS]; static int fd[MAX_NR_CPUS][MAX_COUNTERS]; -static int nr_cpus = 0; +static int nr_cpus = 0; static unsigned int page_size; -static unsigned int mmap_pages = 16; +static unsigned int mmap_pages = 128; static int output; static const char *output_name = "perf.data"; static int group = 0; -- To unsubscribe from this list: send the line "unsubscribe linux-tip-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
|