diff options
Diffstat (limited to 'tools/perf/Documentation')
| -rw-r--r-- | tools/perf/Documentation/perf-kwork.txt | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/tools/perf/Documentation/perf-kwork.txt b/tools/perf/Documentation/perf-kwork.txt index 2092ab916ea9..0601fcb0feea 100644 --- a/tools/perf/Documentation/perf-kwork.txt +++ b/tools/perf/Documentation/perf-kwork.txt @@ -8,7 +8,7 @@ perf-kwork - Tool to trace/measure kernel work properties (latencies) SYNOPSIS -------- [verse] -'perf kwork' {record|report|latency|timehist} +'perf kwork' {record|report|latency|timehist|top} DESCRIPTION ----------- @@ -23,6 +23,8 @@ There are several variants of 'perf kwork': 'perf kwork timehist' provides an analysis of kernel work events. + 'perf kwork top' to report the task cpu usage. + Example usage: perf kwork record -- sleep 1 perf kwork report @@ -30,6 +32,7 @@ There are several variants of 'perf kwork': perf kwork latency perf kwork latency -b perf kwork timehist + perf kwork top By default it shows the individual work events such as irq, workqeueu, including the run time and delay (time between raise and actually entry): |