diff options
Diffstat (limited to 'system')
| -rw-r--r-- | system/doc/design_principles/make.dep | 31 | ||||
| -rw-r--r-- | system/doc/efficiency_guide/make.dep | 16 | ||||
| -rw-r--r-- | system/doc/efficiency_guide/profiling.xml | 57 | ||||
| -rw-r--r-- | system/doc/embedded/make.dep | 14 | ||||
| -rw-r--r-- | system/doc/getting_started/make.dep | 14 | ||||
| -rw-r--r-- | system/doc/installation_guide/make.dep | 13 | ||||
| -rw-r--r-- | system/doc/oam/make.dep | 26 | ||||
| -rw-r--r-- | system/doc/programming_examples/make.dep | 20 | ||||
| -rw-r--r-- | system/doc/reference_manual/code_loading.xml | 4 | ||||
| -rw-r--r-- | system/doc/reference_manual/expressions.xml | 24 | ||||
| -rw-r--r-- | system/doc/reference_manual/make.dep | 16 | ||||
| -rw-r--r-- | system/doc/system_architecture_intro/make.dep | 13 | ||||
| -rw-r--r-- | system/doc/system_principles/make.dep | 14 | ||||
| -rw-r--r-- | system/doc/top/src/erl_html_tools.erl | 10 | ||||
| -rw-r--r-- | system/doc/tutorial/make.dep | 35 |
15 files changed, 56 insertions, 251 deletions
diff --git a/system/doc/design_principles/make.dep b/system/doc/design_principles/make.dep deleted file mode 100644 index 05dd2333fb..0000000000 --- a/system/doc/design_principles/make.dep +++ /dev/null @@ -1,31 +0,0 @@ -# ---------------------------------------------------- -# >>>> Do not edit this file <<<< -# This file was automaticly generated by -# /home/gandalf/otp/bin/docdepend -# ---------------------------------------------------- - - -# ---------------------------------------------------- -# TeX files that the DVI file depend on -# ---------------------------------------------------- - -book.dvi: applications.tex appup_cookbook.tex book.tex \ - des_princ.tex distributed_applications.tex \ - events.tex fsm.tex gen_server_concepts.tex \ - included_applications.tex part.tex release_handling.tex \ - release_structure.tex spec_proc.tex sup_princ.tex - -# ---------------------------------------------------- -# Pictures that the DVI file depend on -# ---------------------------------------------------- - -book.dvi: sup6.ps - -book.dvi: dist1.ps dist2.ps dist3.ps dist4.ps dist5.ps - -book.dvi: clientserver.ps - -book.dvi: inclappls.ps - -book.dvi: sup4.ps sup5.ps - diff --git a/system/doc/efficiency_guide/make.dep b/system/doc/efficiency_guide/make.dep deleted file mode 100644 index afa3bd0516..0000000000 --- a/system/doc/efficiency_guide/make.dep +++ /dev/null @@ -1,16 +0,0 @@ -# ---------------------------------------------------- -# >>>> Do not edit this file <<<< -# This file was automaticly generated by -# /home/otp/bin/docdepend -# ---------------------------------------------------- - - -# ---------------------------------------------------- -# TeX files that the DVI file depend on -# ---------------------------------------------------- - -book.dvi: advanced.tex binaryhandling.tex book.tex commoncaveats.tex \ - drivers.tex functions.tex introduction.tex listhandling.tex \ - myths.tex part.tex processes.tex profiling.tex \ - tablesDatabases.tex - diff --git a/system/doc/efficiency_guide/profiling.xml b/system/doc/efficiency_guide/profiling.xml index 13165a0ede..65ba4b3369 100644 --- a/system/doc/efficiency_guide/profiling.xml +++ b/system/doc/efficiency_guide/profiling.xml @@ -40,9 +40,13 @@ <p>Erlang/OTP contains several tools to help finding bottlenecks.</p> - <p><c>fprof</c> and <c>eprof</c> provide the most detailed information - about where the time is spent, but they significantly slow downs the - programs they profile.</p> + <p><c>fprof</c> provide the most detailed information + about where the time is spent, but it significantly slows down the + program it profiles.</p> + + <p><c>eprof</c> provides time information of each function used + in the program. No callgraph is produced but <c>eprof</c> has + considerable less impact on the program profiled.</p> <p>If the program is too big to be profiled by <c>fprof</c> or <c>eprof</c>, <c>cover</c> and <c>cprof</c> could be used to locate parts of the @@ -50,7 +54,7 @@ <c>eprof</c>.</p> <p><c>cover</c> provides execution counts per line per process, - with less overhead than <c>fprof/eprof</c>. Execution counts can + with less overhead than <c>fprof</c>. Execution counts can with some caution be used to locate potential performance bottlenecks. The most lightweight tool is <c>cprof</c>, but it only provides execution counts on a function basis (for all processes, not per process).</p> @@ -102,35 +106,45 @@ <section> <title>fprof</title> - <p><c>fprof</c> measures the execution time for each function, + <p> + <c>fprof</c> measures the execution time for each function, both own time i.e how much time a function has used for its own execution, and accumulated time i.e. including called functions. The values are displayed per process. You also get to know how many times each function has been called. <c>fprof</c> is based on trace to file in order to minimize runtime performance impact. Using fprof is just a - matter of calling a few library functions, see fprof manual - page under the application tools.</p> - <p><c>fprof</c> was introduced in version R8 of Erlang/OTP. Its - predecessor <c>eprof</c> that is based on the Erlang trace BIFs, - is still available, see eprof manual page under the - application tools. Eprof shows how much time has been used by - each process, and in which function calls this time has been - spent. Time is shown as percentage of total time, not as - absolute time.</p> + matter of calling a few library functions, see + <seealso marker="tools:fprof">fprof</seealso> + manual page under the application tools.<c>fprof</c> was introduced in + version R8 of Erlang/OTP. + </p> </section> + <section> + <title>eprof</title> + <p> + <c>eprof</c> is based on the Erlang trace_info BIFs. Eprof shows how much time has been used by + each process, and in which function calls this time has been + spent. Time is shown as percentage of total time and absolute time. + See <seealso marker="tools:eprof">eprof</seealso> for + additional information. + </p> + </section> + <section> <title>cover</title> - <p><c>cover</c>'s primary use is coverage analysis to verify + <p> + <c>cover</c>'s primary use is coverage analysis to verify test cases, making sure all relevant code is covered. <c>cover</c> counts how many times each executable line of code is executed when a program is run. This is done on a per module basis. Of course this information can be used to determine what code is run very frequently and could therefore be subject for optimization. Using cover is just a matter of - calling a few library functions, see cover manual - page under the application tools.</p> + calling a few library functions, see + <seealso marker="tools:cover">cover</seealso> + manual page under the application tools.</p> </section> <section> @@ -139,8 +153,11 @@ <c>cover</c> regarding features. It counts how many times each function is called when the program is run, on a per module basis. <c>cprof</c> has a low performance degradation effect (versus - <c>fprof</c> and <c>eprof</c>) and does not need to recompile - any modules to profile (versus <c>cover</c>).</p> + <c>fprof</c>) and does not need to recompile + any modules to profile (versus <c>cover</c>). + See <seealso marker="tools:cprof">cprof</seealso> manual page for additional + information. + </p> </section> <section> @@ -170,7 +187,7 @@ <cell align="left" valign="middle"><c>eprof </c></cell> <cell align="left" valign="middle">per process/function to screen/file </cell> <cell align="left" valign="middle">medium </cell> - <cell align="left" valign="middle">significant slowdown </cell> + <cell align="left" valign="middle">small slowdown </cell> <cell align="left" valign="middle">yes </cell> <cell align="left" valign="middle">only total </cell> <cell align="left" valign="middle">no </cell> diff --git a/system/doc/embedded/make.dep b/system/doc/embedded/make.dep deleted file mode 100644 index 9949a3ac96..0000000000 --- a/system/doc/embedded/make.dep +++ /dev/null @@ -1,14 +0,0 @@ -# ---------------------------------------------------- -# >>>> Do not edit this file <<<< -# This file was automaticly generated by -# /home/otp/bin/docdepend -# ---------------------------------------------------- - - -# ---------------------------------------------------- -# TeX files that the DVI file depend on -# ---------------------------------------------------- - -book.dvi: book.tex embedded_nt.tex embedded_solaris.tex \ - part.tex vxworks.tex - diff --git a/system/doc/getting_started/make.dep b/system/doc/getting_started/make.dep deleted file mode 100644 index 69b177f77c..0000000000 --- a/system/doc/getting_started/make.dep +++ /dev/null @@ -1,14 +0,0 @@ -# ---------------------------------------------------- -# >>>> Do not edit this file <<<< -# This file was automaticly generated by -# /home/otp/bin/docdepend -# ---------------------------------------------------- - - -# ---------------------------------------------------- -# TeX files that the DVI file depend on -# ---------------------------------------------------- - -book.dvi: book.tex conc_prog.tex intro.tex part.tex \ - records_macros.tex robustness.tex seq_prog.tex - diff --git a/system/doc/installation_guide/make.dep b/system/doc/installation_guide/make.dep deleted file mode 100644 index 3878f4ac9d..0000000000 --- a/system/doc/installation_guide/make.dep +++ /dev/null @@ -1,13 +0,0 @@ -# ---------------------------------------------------- -# >>>> Do not edit this file <<<< -# This file was automaticly generated by -# /home/otp/bin/docdepend -# ---------------------------------------------------- - - -# ---------------------------------------------------- -# TeX files that the DVI file depend on -# ---------------------------------------------------- - -book.dvi: book.tex install-binary.tex part.tex verification.tex - diff --git a/system/doc/oam/make.dep b/system/doc/oam/make.dep deleted file mode 100644 index 3694df9f1b..0000000000 --- a/system/doc/oam/make.dep +++ /dev/null @@ -1,26 +0,0 @@ -# ---------------------------------------------------- -# >>>> Do not edit this file <<<< -# This file was automaticly generated by -# /home/otp/bin/docdepend -# ---------------------------------------------------- - - -# ---------------------------------------------------- -# TeX files that the DVI file depend on -# ---------------------------------------------------- - -book.dvi: book.tex oam_intro.tex part.tex - -# ---------------------------------------------------- -# Source inlined when transforming from source to LaTeX -# ---------------------------------------------------- - -oam_intro.tex: ../../../system/doc/definitions/term.defs - -# ---------------------------------------------------- -# Pictures that the DVI file depend on -# ---------------------------------------------------- - -book.dvi: snmp_model_1.ps snmp_model_2.ps snmp_model_3.ps \ - terminology.ps - diff --git a/system/doc/programming_examples/make.dep b/system/doc/programming_examples/make.dep deleted file mode 100644 index b0655f56b3..0000000000 --- a/system/doc/programming_examples/make.dep +++ /dev/null @@ -1,20 +0,0 @@ -# ---------------------------------------------------- -# >>>> Do not edit this file <<<< -# This file was automaticly generated by -# /home/otp/bin/docdepend -# ---------------------------------------------------- - - -# ---------------------------------------------------- -# TeX files that the DVI file depend on -# ---------------------------------------------------- - -book.dvi: bit_syntax.tex book.tex funs.tex list_comprehensions.tex \ - part.tex records.tex - -# ---------------------------------------------------- -# Source inlined when transforming from source to LaTeX -# ---------------------------------------------------- - -funs.tex: fun_test.erl funparse.erl funs1.erl - diff --git a/system/doc/reference_manual/code_loading.xml b/system/doc/reference_manual/code_loading.xml index f56e1ff408..3ea72a4057 100644 --- a/system/doc/reference_manual/code_loading.xml +++ b/system/doc/reference_manual/code_loading.xml @@ -112,8 +112,8 @@ loop() -> <c>code_switch</c> to it. The process then will make a fully qualified call to <c>m:loop()</c> and change to current code. Note that <c>m:loop/0</c> must be exported.</p> - <p>For code replacement of funs to work, the tuple syntax - <c>{Module,FunctionName}</c> must be used to represent the fun.</p> + <p>For code replacement of funs to work, the syntax + <c>fun Module:FunctionName/Arity</c> should be used.</p> </section> <section> diff --git a/system/doc/reference_manual/expressions.xml b/system/doc/reference_manual/expressions.xml index 644896cd7f..43d46d87cc 100644 --- a/system/doc/reference_manual/expressions.xml +++ b/system/doc/reference_manual/expressions.xml @@ -561,11 +561,15 @@ number < atom < reference < fun < port < pid < tuple < list <p>Lists are compared element by element. Tuples are ordered by size, two tuples with the same size are compared element by element.</p> - <p>If one of the compared terms is an integer and the other a - float, the integer is first converted into a float, unless the - operator is one of =:= and =/=. If the integer is too big to fit - in a float no conversion is done, but the order is determined by - inspecting the sign of the numbers.</p> + <p>When comparing an integer to a float, the term with the lesser + precision will be converted into the other term's type, unless the + operator is one of =:= and =/=. A float is more precise than + an integer until all significant figures of the float are to the left of + the decimal point. This happens when the float is larger/smaller then + +/-9007199254740992.0. The conversion strategy is changed + depending on the size of the float because otherwise comparison of large + floats and integers would loose their transitivity.</p> + <p>Returns the Boolean value of the expression, <c>true</c> or <c>false</c>.</p> <p>Examples:</p> @@ -989,15 +993,19 @@ fun Module:Name/Arity</pre> <pre> fun (Arg1,...,ArgN) -> Name(Arg1,...,ArgN) end</pre> <p>In <c>Module:Name/Arity</c>, <c>Module</c> and <c>Name</c> are atoms - and <c>Arity</c> is an integer. + and <c>Arity</c> is an integer. Starting from the R15 release, + <c>Module</c>, <c>Name</c>, and <c>Arity</c> may also be variables. A fun defined in this way will refer to the function <c>Name</c> - with arity <c>Arity</c> in the <em>latest</em> version of module <c>Module</c>. + with arity <c>Arity</c> in the <em>latest</em> version of module + <c>Module</c>. A fun defined in this way will not be dependent on + the code for module in which it is defined. </p> <p>When applied to a number N of arguments, a tuple <c>{Module,FunctionName}</c> is interpreted as a fun, referring to the function <c>FunctionName</c> with arity N in the module <c>Module</c>. The function must be exported. - <em>This usage is deprecated.</em> + <em>This usage is deprecated.</em> Use <c>fun Module:Name/Arity</c> + instead. See <seealso marker="#calls">Function Calls</seealso> for an example.</p> <p>More examples can be found in <em>Programming Examples</em>.</p> </section> diff --git a/system/doc/reference_manual/make.dep b/system/doc/reference_manual/make.dep deleted file mode 100644 index 0e7687448c..0000000000 --- a/system/doc/reference_manual/make.dep +++ /dev/null @@ -1,16 +0,0 @@ -# ---------------------------------------------------- -# >>>> Do not edit this file <<<< -# This file was automaticly generated by -# /home/otp/bin/docdepend -# ---------------------------------------------------- - - -# ---------------------------------------------------- -# TeX files that the DVI file depend on -# ---------------------------------------------------- - -book.dvi: book.tex code_loading.tex data_types.tex distributed.tex \ - errors.tex expressions.tex functions.tex introduction.tex \ - macros.tex modules.tex part.tex patterns.tex \ - ports.tex processes.tex records.tex - diff --git a/system/doc/system_architecture_intro/make.dep b/system/doc/system_architecture_intro/make.dep deleted file mode 100644 index 6b7bd860a0..0000000000 --- a/system/doc/system_architecture_intro/make.dep +++ /dev/null @@ -1,13 +0,0 @@ -# ---------------------------------------------------- -# >>>> Do not edit this file <<<< -# This file was automaticly generated by -# /home/otp/bin/docdepend -# ---------------------------------------------------- - - -# ---------------------------------------------------- -# TeX files that the DVI file depend on -# ---------------------------------------------------- - -book.dvi: book.tex part.tex sys_arch_intro.tex - diff --git a/system/doc/system_principles/make.dep b/system/doc/system_principles/make.dep deleted file mode 100644 index 28753ca5a0..0000000000 --- a/system/doc/system_principles/make.dep +++ /dev/null @@ -1,14 +0,0 @@ -# ---------------------------------------------------- -# >>>> Do not edit this file <<<< -# This file was automaticly generated by -# /home/otp/bin/docdepend -# ---------------------------------------------------- - - -# ---------------------------------------------------- -# TeX files that the DVI file depend on -# ---------------------------------------------------- - -book.dvi: book.tex create_target.tex error_logging.tex \ - part.tex system_principles.tex - diff --git a/system/doc/top/src/erl_html_tools.erl b/system/doc/top/src/erl_html_tools.erl index bb6a9a9f0a..1e2b8c86af 100644 --- a/system/doc/top/src/erl_html_tools.erl +++ b/system/doc/top/src/erl_html_tools.erl @@ -624,17 +624,9 @@ lines_to_key_value([Line | Lines]) -> end. %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% -% Extensions to the 'regexp' module. +% Regular expression helpers. %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% -%% is_match(Ex, Re) -> -%% case regexp:first_match(Ex, Re) of -%% {match, _, _} -> -%% true; -%% nomatch -> -%% false -%% end. - %% -type gsub(String, RegExp, Fun, Acc) -> subres(). %% Substitute every match of the regular expression RegExp with the %% string returned from the function Fun(Match, Acc). Accept pre-parsed diff --git a/system/doc/tutorial/make.dep b/system/doc/tutorial/make.dep deleted file mode 100644 index e9f77ab439..0000000000 --- a/system/doc/tutorial/make.dep +++ /dev/null @@ -1,35 +0,0 @@ -# ---------------------------------------------------- -# >>>> Do not edit this file <<<< -# This file was automaticly generated by -# /home/otp/bin/docdepend -# ---------------------------------------------------- - - -# ---------------------------------------------------- -# TeX files that the DVI file depend on -# ---------------------------------------------------- - -book.dvi: book.tex c_port.tex c_portdriver.tex cnode.tex \ - erl_interface.tex example.tex introduction.tex \ - overview.tex part.tex - -# ---------------------------------------------------- -# Source inlined when transforming from source to LaTeX -# ---------------------------------------------------- - -c_port.tex: port.c - -c_portdriver.tex: port_driver.c - -cnode.tex: complex3.erl - -example.tex: complex.c - -# ---------------------------------------------------- -# Pictures that the DVI file depend on -# ---------------------------------------------------- - -book.dvi: port.ps - -book.dvi: port_driver.ps - |