diff options
Diffstat (limited to 'include/trace/events/osnoise.h')
| -rw-r--r-- | include/trace/events/osnoise.h | 238 |
1 files changed, 238 insertions, 0 deletions
diff --git a/include/trace/events/osnoise.h b/include/trace/events/osnoise.h new file mode 100644 index 000000000000..3f4273623801 --- /dev/null +++ b/include/trace/events/osnoise.h @@ -0,0 +1,238 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#undef TRACE_SYSTEM +#define TRACE_SYSTEM osnoise + +#if !defined(_OSNOISE_TRACE_H) || defined(TRACE_HEADER_MULTI_READ) + +#ifndef _OSNOISE_TRACE_H +#define _OSNOISE_TRACE_H +/* + * osnoise sample structure definition. Used to store the statistics of a + * sample run. + */ +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) +); +#endif // CONFIG_TIMERLAT_TRACER + +TRACE_EVENT(thread_noise, + + TP_PROTO(struct task_struct *t, u64 start, u64 duration), + + TP_ARGS(t, start, duration), + + TP_STRUCT__entry( + __array( char, comm, TASK_COMM_LEN) + __field( u64, start ) + __field( u64, duration) + __field( pid_t, pid ) + ), + + TP_fast_assign( + memcpy(__entry->comm, t->comm, TASK_COMM_LEN); + __entry->pid = t->pid; + __entry->start = start; + __entry->duration = duration; + ), + + TP_printk("%8s:%d start %llu.%09u duration %llu ns", + __entry->comm, + __entry->pid, + __print_ns_to_secs(__entry->start), + __print_ns_without_secs(__entry->start), + __entry->duration) +); + +TRACE_EVENT(softirq_noise, + + TP_PROTO(int vector, u64 start, u64 duration), + + TP_ARGS(vector, start, duration), + + TP_STRUCT__entry( + __field( u64, start ) + __field( u64, duration) + __field( int, vector ) + ), + + TP_fast_assign( + __entry->vector = vector; + __entry->start = start; + __entry->duration = duration; + ), + + TP_printk("%8s:%d start %llu.%09u duration %llu ns", + show_softirq_name(__entry->vector), + __entry->vector, + __print_ns_to_secs(__entry->start), + __print_ns_without_secs(__entry->start), + __entry->duration) +); + +TRACE_EVENT(irq_noise, + + TP_PROTO(int vector, const char *desc, u64 start, u64 duration), + + TP_ARGS(vector, desc, start, duration), + + TP_STRUCT__entry( + __field( u64, start ) + __field( u64, duration) + __string( desc, desc ) + __field( int, vector ) + + ), + + TP_fast_assign( + __assign_str(desc); + __entry->vector = vector; + __entry->start = start; + __entry->duration = duration; + ), + + TP_printk("%s:%d start %llu.%09u duration %llu ns", + __get_str(desc), + __entry->vector, + __print_ns_to_secs(__entry->start), + __print_ns_without_secs(__entry->start), + __entry->duration) +); + +TRACE_EVENT(nmi_noise, + + TP_PROTO(u64 start, u64 duration), + + TP_ARGS(start, duration), + + TP_STRUCT__entry( + __field( u64, start ) + __field( u64, duration) + ), + + TP_fast_assign( + __entry->start = start; + __entry->duration = duration; + ), + + TP_printk("start %llu.%09u duration %llu ns", + __print_ns_to_secs(__entry->start), + __print_ns_without_secs(__entry->start), + __entry->duration) +); + +TRACE_EVENT(sample_threshold, + + TP_PROTO(u64 start, u64 duration, u64 interference), + + TP_ARGS(start, duration, interference), + + TP_STRUCT__entry( + __field( u64, start ) + __field( u64, duration) + __field( u64, interference) + ), + + TP_fast_assign( + __entry->start = start; + __entry->duration = duration; + __entry->interference = interference; + ), + + TP_printk("start %llu.%09u duration %llu ns interference %llu", + __print_ns_to_secs(__entry->start), + __print_ns_without_secs(__entry->start), + __entry->duration, + __entry->interference) +); + +#endif /* _TRACE_OSNOISE_H */ + +/* This part must be outside protection */ +#include <trace/define_trace.h> |