diff options
Diffstat (limited to 'lib/tools/doc')
| -rw-r--r-- | lib/tools/doc/src/eprof.xml | 55 | ||||
| -rw-r--r-- | lib/tools/doc/src/erlang_mode.xml | 2 | ||||
| -rw-r--r-- | lib/tools/doc/src/erlang_mode_chapter.xml | 2 | ||||
| -rw-r--r-- | lib/tools/doc/src/notes.xml | 106 |
4 files changed, 142 insertions, 23 deletions
diff --git a/lib/tools/doc/src/eprof.xml b/lib/tools/doc/src/eprof.xml index ae1033f2d0..6d68c90768 100644 --- a/lib/tools/doc/src/eprof.xml +++ b/lib/tools/doc/src/eprof.xml @@ -4,7 +4,7 @@ <erlref> <header> <copyright> - <year>1996</year><year>2009</year> + <year>1996</year><year>2010</year> <holder>Ericsson AB. All Rights Reserved.</holder> </copyright> <legalnotice> @@ -13,12 +13,12 @@ compliance with the License. You should have received a copy of the Erlang Public License along with this software. If not, it can be retrieved online at http://www.erlang.org/. - + Software distributed under the License is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License for the specific language governing rights and limitations under the License. - + </legalnotice> <title>eprof</title> @@ -35,8 +35,7 @@ used. The profiling is done using the Erlang trace BIFs. Tracing of local function calls for a specified set of processes is enabled when profiling is begun, and disabled when profiling is stopped.</p> - <p>When using Eprof, expect a significant slowdown in program execution, - in most cases at least 100 percent.</p> + <p>When using Eprof expect a slowdown in program execution.</p> </description> <funcs> <func> @@ -47,15 +46,19 @@ <v>Reason = {already_started,Pid}</v> </type> <desc> - <p>Starts the Eprof server which owns the Eprof internal database.</p> + <p>Starts the Eprof server which holds the internal state of the collected data.</p> </desc> </func> <func> - <name>start_profiling(Rootset) -> profiling | error</name> - <name>profile(Rootset) -> profiling | error</name> + <name>start_profiling(Rootset) -> profiling | {error, Reason}</name> + <name>start_profiling(Rootset,Pattern) -> 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>Reason = term()</v> </type> <desc> <p>Starts profiling for the processes in <c>Rootset</c> (and any new @@ -64,6 +67,9 @@ <p><c>Rootset</c> is a list of pids and registered names.</p> <p>The function returns <c>profiling</c> if tracing could be enabled for all processes in <c>Rootset</c>, or <c>error</c> otherwise.</p> + <p>A pattern can be selected to narrow the profiling. For instance ca a specific + module be selected and only the code processes executes in that module will be + profiled.</p> </desc> </func> <func> @@ -75,14 +81,20 @@ </desc> </func> <func> - <name>profile(Rootset,Fun) -> {ok,Value} | {error,Reason} | error</name> - <name>profile(Rootset,Module,Function,Args) -> {ok,Value} | {error,Reason} | error</name> + <name>profile(Fun) -> 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> <fsummary>Start profiling.</fsummary> <type> <v>Rootset = [atom() | pid()]</v> <v>Fun = fun() -> term()</v> + <v>Pattern = {Module, Function, Arity}</v> <v>Module = Function = atom()</v> <v>Args = [term()]</v> + <v>Arity = integer()</v> <v>Value = Reason = term()</v> </type> <desc> @@ -96,7 +108,7 @@ <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</c> + exit reason <c>Reason</c>. Otherwise it returns <c>{error, Reason}</c> immediately.</p> <p>The programmer must ensure that the function given as argument is truly synchronous and that no work continues after @@ -104,7 +116,15 @@ </desc> </func> <func> - <name>analyse()</name> + <name>analyze() -> ok</name> + <name>analyze(Type) -> ok</name> + <name>analyze(Type,Options) -> ok</name> + <type> + <v>Type = procs | total</v> + <v>Options = [{filter, Filter} | {sort, Sort}</v> + <v>Filter = [{calls, integer()} | {time, float()}]</v> + <v>Sort = time | calls | mfa</v> + </type> <fsummary>Display profiling results per process.</fsummary> <desc> <p>Call this function when profiling has been stopped to display @@ -113,17 +133,10 @@ <item>how much time has been used by each process, and</item> <item>in which function calls this time has been spent.</item> </list> - <p>Time is shown as percentage of total time, not as absolute time.</p> - </desc> - </func> - <func> - <name>total_analyse()</name> - <fsummary>Display profiling results per function call.</fsummary> - <desc> - <p>Call this function when profiling has been stopped to display + <p>Call <c>analyze</c> with <c>total</c> option when profiling has been stopped to display the results per function call, that is in which function calls the time has been spent.</p> - <p>Time is shown as percentage of total time, not as absolute time.</p> + <p>Time is shown as percentage of total time and as absolute time.</p> </desc> </func> <func> diff --git a/lib/tools/doc/src/erlang_mode.xml b/lib/tools/doc/src/erlang_mode.xml index 912c442153..c21afc1f9b 100644 --- a/lib/tools/doc/src/erlang_mode.xml +++ b/lib/tools/doc/src/erlang_mode.xml @@ -173,7 +173,7 @@ sum(L) -> sum(L, 0). sum([H|T], Sum) -> sum(T, Sum + H); - sum([], Sum) -> Sum."</code> + sum([], Sum) -> Sum.</code> </item> </list> </section> diff --git a/lib/tools/doc/src/erlang_mode_chapter.xml b/lib/tools/doc/src/erlang_mode_chapter.xml index b22c6b1809..8aabd6ae74 100644 --- a/lib/tools/doc/src/erlang_mode_chapter.xml +++ b/lib/tools/doc/src/erlang_mode_chapter.xml @@ -45,7 +45,7 @@ <section> <title>Elisp</title> - <p>There are two Elsip modules include in this tool package + <p>There are two Elisp modules included in this tool package for Emacs. There is erlang.el that defines the actual erlang mode and there is erlang-start.el that makes some nice initializations.</p> </section> diff --git a/lib/tools/doc/src/notes.xml b/lib/tools/doc/src/notes.xml index e7d1ae150c..5f9cecd6e4 100644 --- a/lib/tools/doc/src/notes.xml +++ b/lib/tools/doc/src/notes.xml @@ -30,6 +30,112 @@ </header> <p>This document describes the changes made to the Tools application.</p> +<section><title>Tools 2.6.6.2</title> + + <section><title>Fixed Bugs and Malfunctions</title> + <list> + <item> + <p>eprof: API sort mismatch has now been fixed. </p> + <p> + Own Id: OTP-8853</p> + </item> + <item> + <p> + eprof: fix division by zero in statistics</p> + <p> + Own Id: OTP-8963</p> + </item> + </list> + </section> + +</section> + +<section><title>Tools 2.6.6.1</title> + + <section><title>Fixed Bugs and Malfunctions</title> + <list> + <item> + <p> + <c>cover</c> will now show ampersand characters in the + source code correctly. (Thanks to Tom Moertel.)</p> + <p> + Own Id: OTP-8776</p> + </item> + </list> + </section> + +</section> + +<section><title>Tools 2.6.6</title> + + <section><title>Fixed Bugs and Malfunctions</title> + <list> + <item> + <p>A race condition affecting Cover has been removed.</p> + <p> + Own Id: OTP-8469</p> + </item> + <item> + <p> + Emacs improvements:</p> + <p> + Fixed emacs-mode installation problems.</p> + <p> + Fixed a couple of -spec and -type indentation and + font-lock problems.</p> + <p> + Fixed error messages on emacs-21.</p> + <p> + Magnus Henoch fixed several issues.</p> + <p> + Ralf Doering, Klas Johansson and Chris Bernard + contributed various emacs-eunit improvements.</p> + <p> + Klas Johansson and Dave Peticolas added emacs-flymake + support.</p> + <p> + Own Id: OTP-8530</p> + </item> + </list> + </section> + + + <section><title>Improvements and New Features</title> + <list> + <item> + <p>Xref has been updated to use the <c>re</c> module + instead of the deprecated <c>regexp</c> module.</p> + <p> + *** POTENTIAL INCOMPATIBILITY ***</p> + <p> + Own Id: OTP-8472</p> + </item> + <item> + <p>When given the option <c>{builtins,true}</c> Xref now + adds calls to operators.</p> + <p> + Own Id: OTP-8647</p> + </item> + <item> + <p><c>eprof</c> has been reimplemented with support in + the Erlang virtual machine and is now both faster (i.e. + slows down the code being measured less) and scales much + better. In measurements we saw speed-ups compared to the + old eprof ranging from 6 times (for sequential code that + only uses one scheduler/core) up to 84 times (for + parallel code that uses 8 cores).</p> + <p>Note: The API for the <c>eprof</c> has been cleaned up + and extended. See the documentation.</p> + <p> + *** POTENTIAL INCOMPATIBILITY ***</p> + <p> + Own Id: OTP-8706</p> + </item> + </list> + </section> + +</section> + <section><title>Tools 2.6.5.1</title> <section><title>Fixed Bugs and Malfunctions</title> |