diff options
Diffstat (limited to 'tools/perf/Documentation/perf-trace.txt')
| -rw-r--r-- | tools/perf/Documentation/perf-trace.txt | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/tools/perf/Documentation/perf-trace.txt b/tools/perf/Documentation/perf-trace.txt index f0da8cf63e9a..fb3d2af33844 100644 --- a/tools/perf/Documentation/perf-trace.txt +++ b/tools/perf/Documentation/perf-trace.txt @@ -106,8 +106,8 @@ filter out the startup phase of the program, which is often very different. -m:: --mmap-pages=:: Number of mmap data pages (must be a power of two) or size - specification with appended unit character - B/K/M/G. The - size is rounded up to have nearest pages power of two value. + specification in bytes with appended unit character - B/K/M/G. + The size is rounded up to the nearest power-of-two page value. -C:: --cpu:: @@ -241,6 +241,11 @@ the thread executes on the designated CPUs. Default is to monitor all CPUs. printing using the existing 'perf trace' syscall arg beautifiers to map integer arguments to strings (pid to comm, syscall id to syscall name, etc). +--force-btf:: + Use btf_dump to pretty print syscall argument data, instead of using hand-crafted pretty + printers. This option is intended for testing BTF integration in perf trace. btf_dump-based + pretty-printing serves as a fallback to hand-crafted pretty printers, as the latter can + better pretty-print integer flags and struct pointers. PAGEFAULTS ---------- |