diff options
Diffstat (limited to 'tools/perf/Documentation/perf-trace-python.txt')
| -rw-r--r-- | tools/perf/Documentation/perf-trace-python.txt | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/tools/perf/Documentation/perf-trace-python.txt b/tools/perf/Documentation/perf-trace-python.txt index 119d5deba1d..a241aca7718 100644 --- a/tools/perf/Documentation/perf-trace-python.txt +++ b/tools/perf/Documentation/perf-trace-python.txt @@ -36,7 +36,8 @@ scripts listed by that command. The syscall-counts script is a simple script, but demonstrates all the basic ideas necessary to create a useful script. Here's an example -of its output: +of its output (syscall names are not yet supported, they will appear +as numbers): ---- syscall events: @@ -270,7 +271,8 @@ calling the print_syscall_totals() function from the trace_end() handler called at the end of script processing. The final script producing the output shown above is shown in its -entirety below: +entirety below (syscall_name() helper is not yet available, you can +only deal with id's for now): ---- import os @@ -617,7 +619,6 @@ Various utility functions for use with perf trace: nsecs_nsecs(nsecs) - returns nsecs remainder given nsecs nsecs_str(nsecs) - returns printable string in the form secs.nsecs avg(total, n) - returns average given a sum and a total number of values - syscall_name(id) - returns the syscall name for the specified syscall_nr SEE ALSO -------- |