diff options
| author | Arnaldo Carvalho de Melo <acme@redhat.com> | 2011-10-05 19:30:22 -0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2011-10-07 16:59:59 -0300 |
| commit | 19d4ac3c1039fb952f4c073fd0898e9295a836c8 (patch) | |
| tree | 56acd6c60a518297713a5392acd8813cf4ef768a /tools/perf/Documentation | |
| parent | ab81f3fd350c510730adb1ca40ef55c2b2952121 (diff) | |
perf top: Add callgraph support
Just like in 'perf report', but live.
Still needs to decay the callchains, but already somewhat useful as-is.
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-cj3rmaf5jpsvi3v0tf7t4uvp@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/Documentation')
| -rw-r--r-- | tools/perf/Documentation/perf-top.txt | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/tools/perf/Documentation/perf-top.txt b/tools/perf/Documentation/perf-top.txt index d146ba33d69..e2e5cd0023c 100644 --- a/tools/perf/Documentation/perf-top.txt +++ b/tools/perf/Documentation/perf-top.txt @@ -126,6 +126,21 @@ Default is to monitor all CPUS. --symbols:: Only consider these symbols. +-G [type,min,order]:: +--call-graph:: + Display call chains using type, min percent threshold and order. + type can be either: + - flat: single column, linear exposure of call chains. + - graph: use a graph tree, displaying absolute overhead rates. + - fractal: like graph, but displays relative rates. Each branch of + the tree is considered as a new profiled object. + + order can be either: + - callee: callee based call graph. + - caller: inverted caller based call graph. + + Default: fractal,0.5,callee. + INTERACTIVE PROMPTING KEYS -------------------------- |