diff options
Diffstat (limited to 'tools/perf/builtin-record.c')
| -rw-r--r-- | tools/perf/builtin-record.c | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c index 59af03d80d07..4e3a374e7aa7 100644 --- a/tools/perf/builtin-record.c +++ b/tools/perf/builtin-record.c @@ -26,7 +26,7 @@ static int fd[MAX_NR_CPUS][MAX_COUNTERS]; -static long default_interval = 100000; +static long default_interval = 0; static int nr_cpus = 0; static unsigned int page_size; @@ -730,6 +730,18 @@ int cmd_record(int argc, const char **argv, const char *prefix __used) attrs[0].config = PERF_COUNT_HW_CPU_CYCLES; } + /* + * User specified count overrides default frequency. + */ + if (default_interval) + freq = 0; + else if (freq) { + default_interval = freq; + } else { + fprintf(stderr, "frequency and count are zero, aborting\n"); + exit(EXIT_FAILURE); + } + for (counter = 0; counter < nr_counters; counter++) { if (attrs[counter].sample_period) continue; |
