diff options
| author | Arjan van de Ven <arjan@linux.intel.com> | 2010-08-16 13:44:51 -0400 |
|---|---|---|
| committer | Arjan van de Ven <arjan@linux.intel.com> | 2010-08-16 13:44:51 -0400 |
| commit | d17a7eff393d84512688c99824272e82bb9b886f (patch) | |
| tree | 17155b3ff378fe7f34a3ae0c5a874bc673c1c9e1 /perf | |
| parent | bb7f4505b69fff18488229fe8e09be903cb5e837 (diff) | |
| download | powertop-d17a7eff393d84512688c99824272e82bb9b886f.tar.gz | |
if process A wakes up process B, blame the wakeup on process A, not on process B.
Diffstat (limited to 'perf')
| -rw-r--r-- | perf/perf_bundle.cpp | 4 | ||||
| -rw-r--r-- | perf/perf_bundle.h | 2 | ||||
| -rw-r--r-- | perf/perf_event.h | 19 |
3 files changed, 22 insertions, 3 deletions
diff --git a/perf/perf_bundle.cpp b/perf/perf_bundle.cpp index df3b684..78dee30 100644 --- a/perf/perf_bundle.cpp +++ b/perf/perf_bundle.cpp @@ -180,11 +180,11 @@ void perf_bundle::process(void) continue; - handle_trace_point(sample->trace.type, &sample->data, sample->trace.cpu, sample->trace.time); + handle_trace_point(sample->trace.type, &sample->data, sample->trace.cpu, sample->trace.time, sample->trace.flags); } } -void perf_bundle::handle_trace_point(int type, void *trace, int cpu, uint64_t time) +void perf_bundle::handle_trace_point(int type, void *trace, int cpu, uint64_t time, unsigned char flags) { } diff --git a/perf/perf_bundle.h b/perf/perf_bundle.h index 471f406..5ac8c2c 100644 --- a/perf/perf_bundle.h +++ b/perf/perf_bundle.h @@ -25,7 +25,7 @@ public: void process(void); - virtual void handle_trace_point(int type, void *trace, int cpu = 0, uint64_t time = 0); + virtual void handle_trace_point(int type, void *trace, int cpu = 0, uint64_t time = 0, unsigned char flags = 0); }; diff --git a/perf/perf_event.h b/perf/perf_event.h index 3b6c3e5..7d7cb5b 100644 --- a/perf/perf_event.h +++ b/perf/perf_event.h @@ -872,4 +872,23 @@ static inline void perf_event_init(void) { } perf_output_copy((handle), &(x), sizeof(x)) #endif /* __KERNEL__ */ + + +/* + * trace_flag_type is an enumeration that holds different + * states when a trace occurs. These are: + * IRQS_OFF - interrupts were disabled + * IRQS_NOSUPPORT - arch does not support irqs_disabled_flags + * NEED_RESCED - reschedule is requested + * HARDIRQ - inside an interrupt handler + * SOFTIRQ - inside a softirq handler + */ +enum trace_flag_type { + TRACE_FLAG_IRQS_OFF = 0x01, + TRACE_FLAG_IRQS_NOSUPPORT = 0x02, + TRACE_FLAG_NEED_RESCHED = 0x04, + TRACE_FLAG_HARDIRQ = 0x08, + TRACE_FLAG_SOFTIRQ = 0x10, +}; + #endif /* _LINUX_PERF_EVENT_H */ |