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| author | Peter Zijlstra <a.p.zijlstra@chello.nl> | 2009-05-05 17:50:27 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-05-05 20:18:33 +0200 |
| commit | 16c8a10932aef971292c9570eb5f60b5d4e83ed2 (patch) | |
| tree | ee9f6860cad353bb7a5219468ffdc4e4fc700792 /Documentation/perf_counter/builtin-stat.c | |
| parent | 2023b359214bbc5bad31571cf50d7fb83b535c0a (diff) | |
| download | lwn-16c8a10932aef971292c9570eb5f60b5d4e83ed2.tar.gz lwn-16c8a10932aef971292c9570eb5f60b5d4e83ed2.zip | |
perf_counter: tools: update the tools to support process and inherited counters
"perf record":
- per task counter
- inherit switch
- nmi switch
"perf report":
- userspace/kernel filter
"perf stat":
- userspace/kernel filter
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
LKML-Reference: <20090505155437.389163017@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'Documentation/perf_counter/builtin-stat.c')
| -rw-r--r-- | Documentation/perf_counter/builtin-stat.c | 24 |
1 files changed, 22 insertions, 2 deletions
diff --git a/Documentation/perf_counter/builtin-stat.c b/Documentation/perf_counter/builtin-stat.c index 6de38d256883..e2fa117eab58 100644 --- a/Documentation/perf_counter/builtin-stat.c +++ b/Documentation/perf_counter/builtin-stat.c @@ -87,6 +87,9 @@ #include "perf.h" +#define EVENT_MASK_KERNEL 1 +#define EVENT_MASK_USER 2 + static int system_wide = 0; static int nr_counters = 0; @@ -104,6 +107,7 @@ static __u64 event_id[MAX_COUNTERS] = { static int default_interval = 100000; static int event_count[MAX_COUNTERS]; static int fd[MAX_NR_CPUS][MAX_COUNTERS]; +static int event_mask[MAX_COUNTERS]; static int tid = -1; static int profile_cpu = -1; @@ -258,12 +262,23 @@ static __u64 match_event_symbols(char *str) __u64 config, id; int type; unsigned int i; + char mask_str[4]; if (sscanf(str, "r%llx", &config) == 1) return config | PERF_COUNTER_RAW_MASK; - if (sscanf(str, "%d:%llu", &type, &id) == 2) - return EID(type, id); + switch (sscanf(str, "%d:%llu:%2s", &type, &id, mask_str)) { + case 3: + if (strchr(mask_str, 'u')) + event_mask[nr_counters] |= EVENT_MASK_USER; + if (strchr(mask_str, 'k')) + event_mask[nr_counters] |= EVENT_MASK_KERNEL; + case 2: + return EID(type, id); + + default: + break; + } for (i = 0; i < ARRAY_SIZE(event_symbols); i++) { if (!strncmp(str, event_symbols[i].symbol, @@ -313,6 +328,11 @@ static void create_perfstat_counter(int counter) hw_event.config = event_id[counter]; hw_event.record_type = 0; hw_event.nmi = 0; + hw_event.exclude_kernel = event_mask[counter] & EVENT_MASK_KERNEL; + hw_event.exclude_user = event_mask[counter] & EVENT_MASK_USER; + +printf("exclude: %d\n", event_mask[counter]); + if (scale) hw_event.read_format = PERF_FORMAT_TOTAL_TIME_ENABLED | PERF_FORMAT_TOTAL_TIME_RUNNING; |