Commit-ID: dcd9936a5a6d89512b5323c1145647f2dbe0236f Gitweb: http://git.kernel.org/tip/dcd9936a5a6d89512b5323c1145647f2dbe0236f Author: Ingo Molnar <mingo@xxxxxxx> AuthorDate: Wed, 27 Apr 2011 04:36:37 +0200 Committer: Ingo Molnar <mingo@xxxxxxx> CommitDate: Tue, 26 Apr 2011 20:04:56 +0200 perf stat: Factor our shadow stats Create update_shadow_stats() which is then used in both read_counter_aggr() and read_counter(). This not only simplifies the code but also fixes a bug: HW_CACHE_REFERENCES was not updated in read_counter(). Acked-by: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx> Acked-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx> Cc: Frederic Weisbecker <fweisbec@xxxxxxxxx> Link: http://lkml.kernel.org/n/tip-9uc55z3g88r47exde7zxjm6p@xxxxxxxxxxxxxx Signed-off-by: Ingo Molnar <mingo@xxxxxxx> --- tools/perf/builtin-stat.c | 33 +++++++++++++++++++-------------- 1 files changed, 19 insertions(+), 14 deletions(-) diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c index 0de3a20..e5e82f6 100644 --- a/tools/perf/builtin-stat.c +++ b/tools/perf/builtin-stat.c @@ -194,6 +194,23 @@ static inline int nsec_counter(struct perf_evsel *evsel) } /* + * Update various tracking values we maintain to print + * more semantic information such as miss/hit ratios, + * instruction rates, etc: + */ +static void update_shadow_stats(struct perf_evsel *counter, u64 *count) +{ + if (perf_evsel__match(counter, SOFTWARE, SW_TASK_CLOCK)) + update_stats(&runtime_nsecs_stats[0], count[0]); + else if (perf_evsel__match(counter, HARDWARE, HW_CPU_CYCLES)) + update_stats(&runtime_cycles_stats[0], count[0]); + else if (perf_evsel__match(counter, HARDWARE, HW_BRANCH_INSTRUCTIONS)) + update_stats(&runtime_branches_stats[0], count[0]); + else if (perf_evsel__match(counter, HARDWARE, HW_CACHE_REFERENCES)) + update_stats(&runtime_cacherefs_stats[0], count[0]); +} + +/* * Read out the results of a single counter: * aggregate counts across CPUs in system-wide mode */ @@ -218,14 +235,7 @@ static int read_counter_aggr(struct perf_evsel *counter) /* * Save the full runtime - to allow normalization during printout: */ - if (perf_evsel__match(counter, SOFTWARE, SW_TASK_CLOCK)) - update_stats(&runtime_nsecs_stats[0], count[0]); - else if (perf_evsel__match(counter, HARDWARE, HW_CPU_CYCLES)) - update_stats(&runtime_cycles_stats[0], count[0]); - else if (perf_evsel__match(counter, HARDWARE, HW_BRANCH_INSTRUCTIONS)) - update_stats(&runtime_branches_stats[0], count[0]); - else if (perf_evsel__match(counter, HARDWARE, HW_CACHE_REFERENCES)) - update_stats(&runtime_cacherefs_stats[0], count[0]); + update_shadow_stats(counter, count); return 0; } @@ -245,12 +255,7 @@ static int read_counter(struct perf_evsel *counter) count = counter->counts->cpu[cpu].values; - if (perf_evsel__match(counter, SOFTWARE, SW_TASK_CLOCK)) - update_stats(&runtime_nsecs_stats[cpu], count[0]); - if (perf_evsel__match(counter, HARDWARE, HW_CPU_CYCLES)) - update_stats(&runtime_cycles_stats[cpu], count[0]); - if (perf_evsel__match(counter, HARDWARE, HW_BRANCH_INSTRUCTIONS)) - update_stats(&runtime_branches_stats[cpu], count[0]); + update_shadow_stats(counter, count); } return 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