include/trace/events/osnoise.h

Source file repositories/reference/linux-study-clean/include/trace/events/osnoise.h

File Facts

System
Linux kernel
Corpus path
include/trace/events/osnoise.h
Extension
.h
Size
5394 bytes
Lines
239
Domain
Repository Root And Misc
Bucket
include
Inferred role
Repository Root And Misc: implementation source
Status
source implementation candidate

Why This File Exists

Top-level or miscellaneous repository surface. Use this as map coverage unless a later manual pass promotes the file into a deeper subsystem dossier.

Dependency Surface

Detected Declarations

Annotated Snippet

struct osnoise_sample {
	u64			runtime;	/* runtime */
	u64			noise;		/* noise */
	u64			max_sample;	/* max single noise sample */
	int			hw_count;	/* # HW (incl. hypervisor) interference */
	int			nmi_count;	/* # NMIs during this sample */
	int			irq_count;	/* # IRQs during this sample */
	int			softirq_count;	/* # softirqs during this sample */
	int			thread_count;	/* # threads during this sample */
};

#ifdef CONFIG_TIMERLAT_TRACER
/*
 * timerlat sample structure definition. Used to store the statistics of
 * a sample run.
 */
struct timerlat_sample {
	u64			timer_latency;	/* timer_latency */
	unsigned int		seqnum;		/* unique sequence */
	int			context;	/* timer context */
};
#endif // CONFIG_TIMERLAT_TRACER
#endif // _OSNOISE_TRACE_H

#include <linux/tracepoint.h>
TRACE_EVENT(osnoise_sample,

	TP_PROTO(struct osnoise_sample *s),

	TP_ARGS(s),

	TP_STRUCT__entry(
		__field(	u64,		runtime	)
		__field(	u64,		noise	)
		__field(	u64,		max_sample	)
		__field(	int,		hw_count	)
		__field(	int,		irq_count	)
		__field(	int,		nmi_count	)
		__field(	int, 		softirq_count	)
		__field(	int,		thread_count	)
	),

	TP_fast_assign(
		__entry->runtime = s->runtime;
		__entry->noise = s->noise;
		__entry->max_sample = s->max_sample;
		__entry->hw_count = s->hw_count;
		__entry->irq_count = s->irq_count;
		__entry->nmi_count = s->nmi_count;
		__entry->softirq_count = s->softirq_count;
		__entry->thread_count = s->thread_count;
	),

	TP_printk("runtime=%llu noise=%llu max_sample=%llu hw_count=%d"
		  " irq_count=%d nmi_count=%d softirq_count=%d"
		  " thread_count=%d",
		  __entry->runtime,
		  __entry->noise,
		  __entry->max_sample,
		  __entry->hw_count,
		  __entry->irq_count,
		  __entry->nmi_count,
		  __entry->softirq_count,
		  __entry->thread_count)
);

#ifdef CONFIG_TIMERLAT_TRACER
TRACE_EVENT(timerlat_sample,

	TP_PROTO(struct timerlat_sample *s),

	TP_ARGS(s),

	TP_STRUCT__entry(
		__field(	u64,		timer_latency	)
		__field(	unsigned int,	seqnum		)
		__field(	int,		context		)
	),

	TP_fast_assign(
		__entry->timer_latency = s->timer_latency;
		__entry->seqnum = s->seqnum;
		__entry->context = s->context;
	),

	TP_printk("timer_latency=%llu seqnum=%u context=%d",
		  __entry->timer_latency,
		  __entry->seqnum,
		  __entry->context)
);

Annotation

Implementation Notes