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perf kvm: Use NSEC_PER_USEC 

Following kernel practices and better documenting units of time.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Yarygin <yarygin@linux.vnet.ibm.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Hemant Kumar <hemant@linux.vnet.ibm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-5x6p6fmzrogonpbnkkkw4usk@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Arnaldo Carvalho de Melo 2016-08-08 15:10:44 -03:00
parent 0693e680d3
commit c05a6e1415
1 changed files with 5 additions and 5 deletions
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10
tools/perf/builtin-kvm.c
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@ -363,7 +363,7 @@ static bool handle_end_event(struct perf_kvm_stat *kvm,
if (!skip_event(decode)) { if (!skip_event(decode)) {
pr_info("%" PRIu64 " VM %d, vcpu %d: %s event took %" PRIu64 "usec\n", pr_info("%" PRIu64 " VM %d, vcpu %d: %s event took %" PRIu64 "usec\n",
sample->time, sample->pid, vcpu_record->vcpu_id, sample->time, sample->pid, vcpu_record->vcpu_id,
decode, time_diff/1000); decode, time_diff / NSEC_PER_USEC);
} }
} }
@ -609,15 +609,15 @@ static void print_result(struct perf_kvm_stat *kvm)
pr_info("%10llu ", (unsigned long long)ecount); pr_info("%10llu ", (unsigned long long)ecount);
pr_info("%8.2f%% ", (double)ecount / kvm->total_count * 100); pr_info("%8.2f%% ", (double)ecount / kvm->total_count * 100);
pr_info("%8.2f%% ", (double)etime / kvm->total_time * 100); pr_info("%8.2f%% ", (double)etime / kvm->total_time * 100);
pr_info("%9.2fus ", (double)min / 1e3); pr_info("%9.2fus ", (double)min / NSEC_PER_USEC);
pr_info("%9.2fus ", (double)max / 1e3); pr_info("%9.2fus ", (double)max / NSEC_PER_USEC);
pr_info("%9.2fus ( +-%7.2f%% )", (double)etime / ecount/1e3, pr_info("%9.2fus ( +-%7.2f%% )", (double)etime / ecount / NSEC_PER_USEC,
kvm_event_rel_stddev(vcpu, event)); kvm_event_rel_stddev(vcpu, event));
pr_info("\n"); pr_info("\n");
} }
pr_info("\nTotal Samples:%" PRIu64 ", Total events handled time:%.2fus.\n\n", pr_info("\nTotal Samples:%" PRIu64 ", Total events handled time:%.2fus.\n\n",
kvm->total_count, kvm->total_time / 1e3); kvm->total_count, kvm->total_time / (double)NSEC_PER_USEC);
if (kvm->lost_events) if (kvm->lost_events)
pr_info("\nLost events: %" PRIu64 "\n\n", kvm->lost_events); pr_info("\nLost events: %" PRIu64 "\n\n", kvm->lost_events);