diff options
Diffstat (limited to 'tools/perf/Documentation/perf-report.txt')
| -rw-r--r-- | tools/perf/Documentation/perf-report.txt | 17 |
1 files changed, 15 insertions, 2 deletions
diff --git a/tools/perf/Documentation/perf-report.txt b/tools/perf/Documentation/perf-report.txt index d2b59af62bc0..dd7cccdde498 100644 --- a/tools/perf/Documentation/perf-report.txt +++ b/tools/perf/Documentation/perf-report.txt @@ -147,7 +147,7 @@ OPTIONS -w:: --column-widths=<width[,width...]>:: Force each column width to the provided list, for large terminal - readability. + readability. 0 means no limit (default behavior). -t:: --field-separator=:: @@ -159,7 +159,7 @@ OPTIONS --dump-raw-trace:: Dump raw trace in ASCII. --g [type,min[,limit],order[,key]]:: +-g [type,min[,limit],order[,key][,branch]]:: --call-graph:: Display call chains using type, min percent threshold, optional print limit and order. @@ -177,6 +177,11 @@ OPTIONS - function: compare on functions - address: compare on individual code addresses + branch can be: + - branch: include last branch information in callgraph + when available. Usually more convenient to use --branch-history + for this. + Default: fractal,0.5,callee,function. --children:: @@ -266,6 +271,11 @@ OPTIONS branch stacks and it will automatically switch to the branch view mode, unless --no-branch-stack is used. +--branch-history:: + Add the addresses of sampled taken branches to the callstack. + This allows to examine the path the program took to each sample. + The data collection must have used -b (or -j) and -g. + --objdump=<path>:: Path to objdump binary. @@ -276,6 +286,9 @@ OPTIONS Demangle symbol names to human readable form. It's enabled by default, disable with --no-demangle. +--demangle-kernel:: + Demangle kernel symbol names to human readable form (for C++ kernels). + --mem-mode:: Use the data addresses of samples in addition to instruction addresses to build the histograms. To generate meaningful output, the perf.data |