diff options
Diffstat (limited to 'kernel/trace/trace_output.c')
| -rw-r--r-- | kernel/trace/trace_output.c | 119 |
1 files changed, 118 insertions, 1 deletions
diff --git a/kernel/trace/trace_output.c b/kernel/trace/trace_output.c index d0368a569bfa..a0bf446bb034 100644 --- a/kernel/trace/trace_output.c +++ b/kernel/trace/trace_output.c @@ -1202,7 +1202,6 @@ trace_hwlat_print(struct trace_iterator *iter, int flags, return trace_handle_return(s); } - static enum print_line_t trace_hwlat_raw(struct trace_iterator *iter, int flags, struct trace_event *event) @@ -1232,6 +1231,122 @@ static struct trace_event trace_hwlat_event = { .funcs = &trace_hwlat_funcs, }; +/* TRACE_OSNOISE */ +static enum print_line_t +trace_osnoise_print(struct trace_iterator *iter, int flags, + struct trace_event *event) +{ + struct trace_entry *entry = iter->ent; + struct trace_seq *s = &iter->seq; + struct osnoise_entry *field; + u64 ratio, ratio_dec; + u64 net_runtime; + + trace_assign_type(field, entry); + + /* + * compute the available % of cpu time. + */ + net_runtime = field->runtime - field->noise; + ratio = net_runtime * 10000000; + do_div(ratio, field->runtime); + ratio_dec = do_div(ratio, 100000); + + trace_seq_printf(s, "%llu %10llu %3llu.%05llu %7llu", + field->runtime, + field->noise, + ratio, ratio_dec, + field->max_sample); + + trace_seq_printf(s, " %6u", field->hw_count); + trace_seq_printf(s, " %6u", field->nmi_count); + trace_seq_printf(s, " %6u", field->irq_count); + trace_seq_printf(s, " %6u", field->softirq_count); + trace_seq_printf(s, " %6u", field->thread_count); + + trace_seq_putc(s, '\n'); + + return trace_handle_return(s); +} + +static enum print_line_t +trace_osnoise_raw(struct trace_iterator *iter, int flags, + struct trace_event *event) +{ + struct osnoise_entry *field; + struct trace_seq *s = &iter->seq; + + trace_assign_type(field, iter->ent); + + trace_seq_printf(s, "%lld %llu %llu %u %u %u %u %u\n", + field->runtime, + field->noise, + field->max_sample, + field->hw_count, + field->nmi_count, + field->irq_count, + field->softirq_count, + field->thread_count); + + return trace_handle_return(s); +} + +static struct trace_event_functions trace_osnoise_funcs = { + .trace = trace_osnoise_print, + .raw = trace_osnoise_raw, +}; + +static struct trace_event trace_osnoise_event = { + .type = TRACE_OSNOISE, + .funcs = &trace_osnoise_funcs, +}; + +/* TRACE_TIMERLAT */ +static enum print_line_t +trace_timerlat_print(struct trace_iterator *iter, int flags, + struct trace_event *event) +{ + struct trace_entry *entry = iter->ent; + struct trace_seq *s = &iter->seq; + struct timerlat_entry *field; + + trace_assign_type(field, entry); + + trace_seq_printf(s, "#%-5u context %6s timer_latency %9llu ns\n", + field->seqnum, + field->context ? "thread" : "irq", + field->timer_latency); + + return trace_handle_return(s); +} + +static enum print_line_t +trace_timerlat_raw(struct trace_iterator *iter, int flags, + struct trace_event *event) +{ + struct timerlat_entry *field; + struct trace_seq *s = &iter->seq; + + trace_assign_type(field, iter->ent); + + trace_seq_printf(s, "%u %d %llu\n", + field->seqnum, + field->context, + field->timer_latency); + + return trace_handle_return(s); +} + +static struct trace_event_functions trace_timerlat_funcs = { + .trace = trace_timerlat_print, + .raw = trace_timerlat_raw, +}; + +static struct trace_event trace_timerlat_event = { + .type = TRACE_TIMERLAT, + .funcs = &trace_timerlat_funcs, +}; + /* TRACE_BPUTS */ static enum print_line_t trace_bputs_print(struct trace_iterator *iter, int flags, @@ -1442,6 +1557,8 @@ static struct trace_event *events[] __initdata = { &trace_bprint_event, &trace_print_event, &trace_hwlat_event, + &trace_osnoise_event, + &trace_timerlat_event, &trace_raw_data_event, &trace_func_repeats_event, NULL |