Messages in this thread | | | Date | Thu, 30 Aug 2018 10:56:54 +0200 | From | Jiri Olsa <> | Subject | Re: [PATCH v1 01/10] perf tools: Report itrace options in help |
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On Wed, Aug 29, 2018 at 10:18:25AM -0700, Andi Kleen wrote:
SNIP
> diff --git a/tools/perf/util/auxtrace.h b/tools/perf/util/auxtrace.h > index e731f55da072..f3f7ad6ae202 100644 > --- a/tools/perf/util/auxtrace.h > +++ b/tools/perf/util/auxtrace.h > @@ -576,6 +576,23 @@ static inline void auxtrace__free(struct perf_session *session) > return session->auxtrace->free(session); > } > > +#define ITRACE_HELP \ > +" i synthesize instructions events\n" \ > +" b synthesize branches events\n" \ > +" c synthesize branches events (calls only)\n" \ > +" r synthesize branches events (returns only)\n" \ > +" x synthesize transactions events\n" \ > +" w synthesize ptwrite events\n" \ > +" p synthesize power events\n" \ > +" e synthesize error events\n" \ > +" d create a debug log\n" \ > +" g[len] synthesize a call chain (use with i or x)\n" \ > +" l[len] synthesize last branch entries (use with i or x)\n" \ > +" sNUMBER skip initial number of events\n" \ > +" PERIOD[ns|us|ms|i|t] specify period to sample stream\n" \ > +" concatenate multiple options. Default is ibxwpe\n" > + > +
Please align this a bit more (perf report usage) and add the ':'
--itrace[=<opts>] Instruction Tracing options i synthesize instructions events b synthesize branches events c synthesize branches events (calls only) r synthesize branches events (returns only) x synthesize transactions events w synthesize ptwrite events p synthesize power events e synthesize error events d create a debug log g[len] synthesize a call chain (use with i or x) l[len] synthesize last branch entries (use with i or x) sNUMBER skip initial number of events PERIOD[ns|us|ms|i|t] specify period to sample stream concatenate multiple options. Default is ibxwpe
like for example for '-g' option:
-g, --call-graph <print_type,threshold[,print_limit],order,sort_key[,branch],value> Display call graph (stack chain/backtrace):
print_type: call graph printing style (graph|flat|fractal|folded|none) threshold: minimum call graph inclusion threshold (<percent>) print_limit: maximum number of call graph entry (<number>) order: call graph order (caller|callee) sort_key: call graph sort key (function|address) branch: include last branch info to call graph (branch) value: call graph value (percent|period|count)
Default: graph,0.5,caller,function,percent
jirka
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