diff options
| author | Björn-Egil Dahlberg <[email protected]> | 2013-05-03 19:23:46 +0200 |
|---|---|---|
| committer | Björn-Egil Dahlberg <[email protected]> | 2013-05-03 19:23:46 +0200 |
| commit | 1d25013cce3473051b9b8982fc331400f6bf0b4b (patch) | |
| tree | c5ff67b1ef4ab6c0bb0f9321a4ef054739733909 /lib/tools/doc/src | |
| parent | a181e4eb14a5e4f601755eb0b9ed9c56419b3825 (diff) | |
| download | otp-1d25013cce3473051b9b8982fc331400f6bf0b4b.tar.gz otp-1d25013cce3473051b9b8982fc331400f6bf0b4b.tar.bz2 otp-1d25013cce3473051b9b8982fc331400f6bf0b4b.zip | |
tools: Document new eprof options
Diffstat (limited to 'lib/tools/doc/src')
| -rw-r--r-- | lib/tools/doc/src/eprof.xml | 25 |
1 files changed, 18 insertions, 7 deletions
diff --git a/lib/tools/doc/src/eprof.xml b/lib/tools/doc/src/eprof.xml index 82eb8dd284..8397204a43 100644 --- a/lib/tools/doc/src/eprof.xml +++ b/lib/tools/doc/src/eprof.xml @@ -52,12 +52,14 @@ <func> <name>start_profiling(Rootset) -> profiling | {error, Reason}</name> <name>start_profiling(Rootset,Pattern) -> profiling | {error, Reason}</name> + <name>start_profiling(Rootset,Pattern,Options) -> profiling | {error, Reason}</name> <fsummary>Start profiling.</fsummary> <type> <v>Rootset = [atom() | pid()]</v> - <v>Pattern = {Module, Function, Arity}</v> - <v>Module = Function = atom()</v> - <v>Arity = integer()</v> + <v>Pattern = {Module, Function, Arity}</v> + <v>Module = Function = atom()</v> + <v>Arity = integer()</v> + <v>Options = [set_on_spawn]</v> <v>Reason = term()</v> </type> <desc> @@ -70,6 +72,9 @@ <p>A pattern can be selected to narrow the profiling. For instance a specific module can be selected, and only the code executed in that module will be profiled.</p> + <p>The <c>set_on_spawn</c> option will active call time tracing for + all processes spawned by processes in the rootset. This is + the default behaviour.</p> </desc> </func> <func> @@ -82,19 +87,22 @@ </func> <func> <name>profile(Fun) -> profiling | {error, Reason}</name> + <name>profile(Fun, Options) -> profiling | {error, Reason}</name> <name>profile(Rootset) -> profiling | {error, Reason}</name> <name>profile(Rootset,Fun) -> {ok, Value} | {error,Reason}</name> <name>profile(Rootset,Fun,Pattern) -> {ok, Value} | {error, Reason}</name> <name>profile(Rootset,Module,Function,Args) -> {ok, Value} | {error, Reason}</name> <name>profile(Rootset,Module,Function,Args,Pattern) -> {ok, Value} | {error, Reason}</name> + <name>profile(Rootset,Module,Function,Args,Pattern,Options) -> {ok, Value} | {error, Reason}</name> <fsummary>Start profiling.</fsummary> <type> <v>Rootset = [atom() | pid()]</v> - <v>Fun = fun() -> term()</v> - <v>Pattern = {Module, Function, Arity}</v> + <v>Fun = fun() -> term() end</v> + <v>Pattern = {Module, Function, Arity}</v> <v>Module = Function = atom()</v> <v>Args = [term()]</v> - <v>Arity = integer()</v> + <v>Arity = integer()</v> + <v>Options = [set_on_spawn]</v> <v>Value = Reason = term()</v> </type> <desc> @@ -108,8 +116,11 @@ <c>Rootset</c>, the function returns <c>{ok,Value}</c> when <c>Fun()</c>/<c>apply</c> returns with the value <c>Value</c>, or <c>{error,Reason}</c> if <c>Fun()</c>/<c>apply</c> fails with - exit reason <c>Reason</c>. Otherwise it returns <c>{error, Reason}</c> + exit reason <c>Reason</c>. Otherwise it returns <c>{error, Reason}</c> immediately.</p> + <p>The <c>set_on_spawn</c> option will active call time tracing for + all processes spawned by processes in the rootset. This is + the default behaviour.</p> <p>The programmer must ensure that the function given as argument is truly synchronous and that no work continues after the function has returned a value.</p> |