| Date | Mon, 11 Nov 2013 13:45:12 -0700 | From | David Ahern <> | Subject | Re: [PATCH 10/10] perf tests: Use lower sample_freq in sw clock event period test |
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On 11/11/13, 1:22 PM, Arnaldo Carvalho de Melo wrote:
> @@ -58,8 +58,11 @@ static int __test__sw_clock_freq(enum perf_sw_ids clock_id) > } > > if (perf_evlist__open(evlist)) { > + const char *knob = "/proc/sys/kernel/perf_event_max_sample_rate"; > + > err = -errno; > - pr_debug("Couldn't open evlist: %s\n", strerror(errno)); > + pr_debug("Couldn't open evlist: %s\nHint: check %s, using %" PRIu64 " in this test.\n", > + strerror(errno), knob, (u64)attr.sample_freq); > goto out_delete_maps; > }
Jiri had a patch to drop the sample rate to max. Perhaps re-use that here?
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