diff options
Diffstat (limited to 'tools/perf/Documentation/perf-record.txt')
| -rw-r--r-- | tools/perf/Documentation/perf-record.txt | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/tools/perf/Documentation/perf-record.txt b/tools/perf/Documentation/perf-record.txt index 19aa17532a16..a77a431ca4ef 100644 --- a/tools/perf/Documentation/perf-record.txt +++ b/tools/perf/Documentation/perf-record.txt @@ -347,6 +347,14 @@ Configure all used events to run in kernel space. --all-user:: Configure all used events to run in user space. +--switch-output:: +Generate multiple perf.data files, timestamp prefixed, switching to a new one +when receiving a SIGUSR2. + +A possible use case is to, given an external event, slice the perf.data file +that gets then processed, possibly via a perf script, to decide if that +particular perf.data snapshot should be kept or not. + SEE ALSO -------- linkperf:perf-stat[1], linkperf:perf-list[1] |