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authorDaniel Bristot de Oliveira2024-04-24 16:36:54 +0200
committerDaniel Bristot de Oliveira2024-05-15 15:13:57 +0200
commit1462501c7a8d565f5949d3d5635b2111d889aaaa (patch)
treec25d4c11cc6c64501a96ea81ebf73a7b892a1bcc /tools/tracing
parent285dcb7665ae83d07f194a517ba290f02d4f5f73 (diff)
rtla/timerlat: Add a summary for hist mode
Like on rtla timerlat top, add an overall summary at the bottom of timerlat hist. For instance: # timerlat hist -c 0-1 -d 10s -E 20 # RTLA timerlat histogram # Time unit is microseconds (us) # Duration: 0 00:00:10 Index IRQ-000 Thr-000 IRQ-001 Thr-001 6 1 0 0 0 7 1 0 0 0 8 1 0 1 0 9 7 0 0 0 10 16 0 0 0 11 1 0 3 0 15 0 0 3 0 16 0 0 12 0 17 0 0 28 0 18 0 2 26 0 19 1 1 80 1 over: 9973 9998 9848 10000 count: 10001 10001 10001 10001 min: 6 18 8 19 avg: 185 204 95 113 max: 428 450 341 371 ALL: IRQ Thr count: 20002 20002 min: 6 18 avg: 140 159 max: 428 450 Link: https://lkml.kernel.org/r/a6bc06c798f72127edc57d1f99da8d57e1187cee.1713968967.git.bristot@kernel.org Cc: Jonathan Corbet <corbet@lwn.net> Suggested-by: Juri Lelli <juri.lelli@redhat.com> Signed-off-by: Daniel Bristot de Oliveira <bristot@kernel.org>
Diffstat (limited to 'tools/tracing')
-rw-r--r--tools/tracing/rtla/src/timerlat_hist.c130
1 files changed, 129 insertions, 1 deletions
diff --git a/tools/tracing/rtla/src/timerlat_hist.c b/tools/tracing/rtla/src/timerlat_hist.c
index 8bd51aab6513..b12c6b571dd4 100644
--- a/tools/tracing/rtla/src/timerlat_hist.c
+++ b/tools/tracing/rtla/src/timerlat_hist.c
@@ -401,8 +401,135 @@ timerlat_print_summary(struct timerlat_hist_params *params,
trace_seq_reset(trace->seq);
}
+static void
+timerlat_print_stats_all(struct timerlat_hist_params *params,
+ struct trace_instance *trace,
+ struct timerlat_hist_data *data)
+{
+ struct timerlat_hist_cpu *cpu_data;
+ struct timerlat_hist_cpu sum;
+ int cpu;
+
+ if (params->no_summary)
+ return;
+
+ memset(&sum, 0, sizeof(sum));
+ sum.min_irq = ~0;
+ sum.min_thread = ~0;
+ sum.min_user = ~0;
+
+ for (cpu = 0; cpu < data->nr_cpus; cpu++) {
+ if (params->cpus && !CPU_ISSET(cpu, &params->monitored_cpus))
+ continue;
+
+ if (!data->hist[cpu].irq_count && !data->hist[cpu].thread_count)
+ continue;
+
+ cpu_data = &data->hist[cpu];
+
+ sum.irq_count += cpu_data->irq_count;
+ update_min(&sum.min_irq, &cpu_data->min_irq);
+ update_sum(&sum.sum_irq, &cpu_data->sum_irq);
+ update_max(&sum.max_irq, &cpu_data->max_irq);
+
+ sum.thread_count += cpu_data->thread_count;
+ update_min(&sum.min_thread, &cpu_data->min_thread);
+ update_sum(&sum.sum_thread, &cpu_data->sum_thread);
+ update_max(&sum.max_thread, &cpu_data->max_thread);
+
+ sum.user_count += cpu_data->user_count;
+ update_min(&sum.min_user, &cpu_data->min_user);
+ update_sum(&sum.sum_user, &cpu_data->sum_user);
+ update_max(&sum.max_user, &cpu_data->max_user);
+ }
+
+ if (!params->no_index)
+ trace_seq_printf(trace->seq, "ALL: ");
+
+ if (!params->no_irq)
+ trace_seq_printf(trace->seq, " IRQ");
+
+ if (!params->no_thread)
+ trace_seq_printf(trace->seq, " Thr");
+
+ if (params->user_hist)
+ trace_seq_printf(trace->seq, " Usr");
+
+ trace_seq_printf(trace->seq, "\n");
+
+ if (!params->no_index)
+ trace_seq_printf(trace->seq, "count:");
+
+ if (!params->no_irq)
+ trace_seq_printf(trace->seq, "%9d ",
+ sum.irq_count);
+
+ if (!params->no_thread)
+ trace_seq_printf(trace->seq, "%9d ",
+ sum.thread_count);
+
+ if (params->user_hist)
+ trace_seq_printf(trace->seq, "%9d ",
+ sum.user_count);
+
+ trace_seq_printf(trace->seq, "\n");
+
+ if (!params->no_index)
+ trace_seq_printf(trace->seq, "min: ");
+
+ if (!params->no_irq)
+ trace_seq_printf(trace->seq, "%9llu ",
+ sum.min_irq);
+
+ if (!params->no_thread)
+ trace_seq_printf(trace->seq, "%9llu ",
+ sum.min_thread);
+
+ if (params->user_hist)
+ trace_seq_printf(trace->seq, "%9llu ",
+ sum.min_user);
+
+ trace_seq_printf(trace->seq, "\n");
+
+ if (!params->no_index)
+ trace_seq_printf(trace->seq, "avg: ");
+
+ if (!params->no_irq)
+ trace_seq_printf(trace->seq, "%9llu ",
+ sum.sum_irq / sum.irq_count);
+
+ if (!params->no_thread)
+ trace_seq_printf(trace->seq, "%9llu ",
+ sum.sum_thread / sum.thread_count);
+
+ if (params->user_hist)
+ trace_seq_printf(trace->seq, "%9llu ",
+ sum.sum_user / sum.user_count);
+
+ trace_seq_printf(trace->seq, "\n");
+
+ if (!params->no_index)
+ trace_seq_printf(trace->seq, "max: ");
+
+ if (!params->no_irq)
+ trace_seq_printf(trace->seq, "%9llu ",
+ sum.max_irq);
+
+ if (!params->no_thread)
+ trace_seq_printf(trace->seq, "%9llu ",
+ sum.max_thread);
+
+ if (params->user_hist)
+ trace_seq_printf(trace->seq, "%9llu ",
+ sum.max_user);
+
+ trace_seq_printf(trace->seq, "\n");
+ trace_seq_do_printf(trace->seq);
+ trace_seq_reset(trace->seq);
+}
+
/*
- * timerlat_print_stats - print data for all CPUs
+ * timerlat_print_stats - print data for each CPUs
*/
static void
timerlat_print_stats(struct timerlat_hist_params *params, struct osnoise_tool *tool)
@@ -485,6 +612,7 @@ timerlat_print_stats(struct timerlat_hist_params *params, struct osnoise_tool *t
trace_seq_reset(trace->seq);
timerlat_print_summary(params, trace, data);
+ timerlat_print_stats_all(params, trace, data);
}
/*