perf_log_throttle

Name:perf_log_throttle

Proto:static void perf_log_throttle(struct perf_event *event, int enable)

Type:void

Parameter:

Type	Parameter	Name
struct perf_event *	event
int	enable

8089

struct{struct perf_event_header header;u64 time;u64 id;u64 stream_id;}throttle_event = {header = {type = PERF_RECORD_THROTTLE, misc = 0, size = size of throttle_event , }, time = perf_event_clock(event), id = If we inherit events we want to return the parent event id* to userspace., stream_id = id, }

8105

If enable Then type = PERF_RECORD_UNTHROTTLE

8108

perf_event_header__init_id( & header, & sample, event)

8110

ret = perf_output_begin( & handle, event, size)

8112

If ret Then Return

8115

perf_output_put( & handle, throttle_event)

8116

perf_event__output_id_sample(event, & handle, & sample)

8117

perf_output_end( & handle)

**Caller**
Name	Describe
event_sched_in
perf_adjust_freq_unthr_context	mbine freq adjustment with unthrottling to avoid two passes over the* events. At the same time, make sure, having freq events does not change* the rate of unthrottling as that would introduce bias.
__perf_event_period
__perf_event_account_interrupt

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