diff options
Diffstat (limited to 'tools/tracing/rtla/src/timerlat_top.c')
| -rw-r--r-- | tools/tracing/rtla/src/timerlat_top.c | 28 |
1 files changed, 26 insertions, 2 deletions
diff --git a/tools/tracing/rtla/src/timerlat_top.c b/tools/tracing/rtla/src/timerlat_top.c index aef044832964..13bd922ab147 100644 --- a/tools/tracing/rtla/src/timerlat_top.c +++ b/tools/tracing/rtla/src/timerlat_top.c @@ -30,6 +30,7 @@ struct timerlat_top_params { int quiet; int set_sched; struct sched_attr sched_param; + struct trace_events *events; }; struct timerlat_top_cpu { @@ -267,7 +268,7 @@ static void timerlat_top_usage(char *usage) static const char *const msg[] = { "", " usage: rtla timerlat [top] [-h] [-q] [-a us] [-d s] [-D] [-n] [-p us] [-i us] [-T us] [-s us] \\", - " [[-t[=file]] -c cpu-list] [-P priority]", + " [[-t[=file]] [-e sys[:event]] [-c cpu-list] [-P priority]", "", " -h/--help: print this menu", " -a/--auto: set automatic trace mode, stopping the session if argument in us latency is hit", @@ -279,6 +280,7 @@ static void timerlat_top_usage(char *usage) " -d/--duration time[m|h|d]: duration of the session in seconds", " -D/--debug: print debug info", " -t/--trace[=file]: save the stopped trace to [file|timerlat_trace.txt]", + " -e/--event <sys:event>: enable the <sys:event> in the trace instance, multiple -e are allowed", " -n/--nano: display data in nanoseconds", " -q/--quiet print only a summary at the end", " -P/--priority o:prio|r:prio|f:prio|d:runtime:period : set scheduling parameters", @@ -308,6 +310,7 @@ static struct timerlat_top_params *timerlat_top_parse_args(int argc, char **argv) { struct timerlat_top_params *params; + struct trace_events *tevent; long long auto_thresh; int retval; int c; @@ -325,6 +328,7 @@ static struct timerlat_top_params {"cpus", required_argument, 0, 'c'}, {"debug", no_argument, 0, 'D'}, {"duration", required_argument, 0, 'd'}, + {"event", required_argument, 0, 'e'}, {"help", no_argument, 0, 'h'}, {"irq", required_argument, 0, 'i'}, {"nano", no_argument, 0, 'n'}, @@ -340,7 +344,7 @@ static struct timerlat_top_params /* getopt_long stores the option index here. */ int option_index = 0; - c = getopt_long(argc, argv, "a:c:d:Dhi:np:P:qs:t::T:", + c = getopt_long(argc, argv, "a:c:d:De:hi:np:P:qs:t::T:", long_options, &option_index); /* detect the end of the options. */ @@ -375,6 +379,17 @@ static struct timerlat_top_params if (!params->duration) timerlat_top_usage("Invalid -D duration\n"); break; + case 'e': + tevent = trace_event_alloc(optarg); + if (!tevent) { + err_msg("Error alloc trace event"); + exit(EXIT_FAILURE); + } + + if (params->events) + tevent->next = params->events; + params->events = tevent; + break; case 'h': case '?': timerlat_top_usage(NULL); @@ -583,6 +598,13 @@ int timerlat_top_main(int argc, char *argv[]) err_msg("Failed to enable the trace instance\n"); goto out_top; } + + if (params->events) { + retval = trace_events_enable(&record->trace, params->events); + if (retval) + goto out_top; + } + trace_instance_start(&record->trace); } @@ -624,6 +646,8 @@ int timerlat_top_main(int argc, char *argv[]) } out_top: + trace_events_destroy(&record->trace, params->events); + params->events = NULL; timerlat_free_top(top->data); osnoise_destroy_tool(record); osnoise_destroy_tool(top); |