diff options
author | Daniel Bristot de Oliveira <bristot@kernel.org> | 2023-06-06 18:12:21 +0200 |
---|---|---|
committer | Steven Rostedt (Google) <rostedt@goodmis.org> | 2023-06-13 22:37:05 +0200 |
commit | 57cf76ec64573ee1eb75b91d665dba18b21ece6e (patch) | |
tree | 8a5b52056bdfc73535d9dfe2b1bcd6473c4562ed | |
parent | rtla/timerlat_hist: Add auto-analysis support (diff) | |
download | linux-57cf76ec64573ee1eb75b91d665dba18b21ece6e.tar.xz linux-57cf76ec64573ee1eb75b91d665dba18b21ece6e.zip |
rtla: Start the tracers after creating all instances
Group all start tracing after finishing creating all instances.
The tracing instance starts first for the case of hitting a stop
tracing while enabling other instances. The trace instance is the
one with most valuable information.
Link: https://lkml.kernel.org/r/67da7a703a56f75d7cd46568525145a65501a7e8.1686066600.git.bristot@kernel.org
Cc: William White <chwhite@redhat.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Tested-by: Juri Lelli <juri.lelli@redhat.com>
Signed-off-by: Daniel Bristot de Oliveira <bristot@kernel.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
-rw-r--r-- | tools/tracing/rtla/src/osnoise_hist.c | 14 | ||||
-rw-r--r-- | tools/tracing/rtla/src/osnoise_top.c | 13 | ||||
-rw-r--r-- | tools/tracing/rtla/src/timerlat_hist.c | 17 | ||||
-rw-r--r-- | tools/tracing/rtla/src/timerlat_top.c | 19 |
4 files changed, 46 insertions, 17 deletions
diff --git a/tools/tracing/rtla/src/osnoise_hist.c b/tools/tracing/rtla/src/osnoise_hist.c index dfbcb5ca7ecb..8f81fa007364 100644 --- a/tools/tracing/rtla/src/osnoise_hist.c +++ b/tools/tracing/rtla/src/osnoise_hist.c @@ -870,8 +870,6 @@ int osnoise_hist_main(int argc, char *argv[]) } } - trace_instance_start(trace); - if (params->trace_output) { record = osnoise_init_trace_tool("osnoise"); if (!record) { @@ -885,9 +883,19 @@ int osnoise_hist_main(int argc, char *argv[]) goto out_hist; } - trace_instance_start(&record->trace); } + /* + * Start the tracer here, after having set all instances. + * + * Let the trace instance start first for the case of hitting a stop + * tracing while enabling other instances. The trace instance is the + * one with most valuable information. + */ + if (params->trace_output) + trace_instance_start(&record->trace); + trace_instance_start(trace); + tool->start_time = time(NULL); osnoise_hist_set_signals(params); diff --git a/tools/tracing/rtla/src/osnoise_top.c b/tools/tracing/rtla/src/osnoise_top.c index 0833537bb2eb..85abba568faf 100644 --- a/tools/tracing/rtla/src/osnoise_top.c +++ b/tools/tracing/rtla/src/osnoise_top.c @@ -697,8 +697,6 @@ int osnoise_top_main(int argc, char **argv) } } - trace_instance_start(trace); - if (params->trace_output) { record = osnoise_init_trace_tool("osnoise"); if (!record) { @@ -711,9 +709,18 @@ int osnoise_top_main(int argc, char **argv) if (retval) goto out_top; } + } + /* + * Start the tracer here, after having set all instances. + * + * Let the trace instance start first for the case of hitting a stop + * tracing while enabling other instances. The trace instance is the + * one with most valuable information. + */ + if (params->trace_output) trace_instance_start(&record->trace); - } + trace_instance_start(trace); tool->start_time = time(NULL); osnoise_top_set_signals(params); diff --git a/tools/tracing/rtla/src/timerlat_hist.c b/tools/tracing/rtla/src/timerlat_hist.c index e720c8908906..f431cf43246c 100644 --- a/tools/tracing/rtla/src/timerlat_hist.c +++ b/tools/tracing/rtla/src/timerlat_hist.c @@ -922,8 +922,6 @@ int timerlat_hist_main(int argc, char *argv[]) } } - trace_instance_start(trace); - if (params->trace_output) { record = osnoise_init_trace_tool("timerlat"); if (!record) { @@ -936,8 +934,6 @@ int timerlat_hist_main(int argc, char *argv[]) if (retval) goto out_hist; } - - trace_instance_start(&record->trace); } if (!params->no_aa) { @@ -956,9 +952,20 @@ int timerlat_hist_main(int argc, char *argv[]) err_msg("Failed to enable timerlat tracer\n"); goto out_hist; } + } + /* + * Start the tracers here, after having set all instances. + * + * Let the trace instance start first for the case of hitting a stop + * tracing while enabling other instances. The trace instance is the + * one with most valuable information. + */ + if (params->trace_output) + trace_instance_start(&record->trace); + if (!params->no_aa) trace_instance_start(&aa->trace); - } + trace_instance_start(trace); tool->start_time = time(NULL); timerlat_hist_set_signals(params); diff --git a/tools/tracing/rtla/src/timerlat_top.c b/tools/tracing/rtla/src/timerlat_top.c index d6b5a382569e..02cff4948981 100644 --- a/tools/tracing/rtla/src/timerlat_top.c +++ b/tools/tracing/rtla/src/timerlat_top.c @@ -743,8 +743,6 @@ int timerlat_top_main(int argc, char *argv[]) } } - trace_instance_start(trace); - if (params->trace_output) { record = osnoise_init_trace_tool("timerlat"); if (!record) { @@ -757,8 +755,6 @@ int timerlat_top_main(int argc, char *argv[]) if (retval) goto out_top; } - - trace_instance_start(&record->trace); } if (!params->no_aa) { @@ -785,11 +781,22 @@ int timerlat_top_main(int argc, char *argv[]) err_msg("Failed to enable timerlat tracer\n"); goto out_top; } - - trace_instance_start(&aa->trace); } } + /* + * Start the tracers here, after having set all instances. + * + * Let the trace instance start first for the case of hitting a stop + * tracing while enabling other instances. The trace instance is the + * one with most valuable information. + */ + if (params->trace_output) + trace_instance_start(&record->trace); + if (!params->no_aa && aa != top) + trace_instance_start(&aa->trace); + trace_instance_start(trace); + top->start_time = time(NULL); timerlat_top_set_signals(params); |