profiler -
Tcl source code profiler
package require Tcl 8.3
package require profiler ? 0.3 ?
::profiler::init
::profiler::dump pattern
::profiler::print ? pattern ?
::profiler::reset ? pattern ?
::profiler::suspend ? pattern ?
::profiler::resume ? pattern ?
::profiler::sortFunctions key
The profiler package provides a simple Tcl source code
profiler. It is a function-level profiler; that is, it collects only
function-level information, not the more detailed line-level
information. It operates by redefining the Tcl proc command.
Profiling is initiated via the ::profiler::init command.
-
::profiler::init
-
Initiate profiling. All procedures created after this command is
called will be profiled. To profile an entire application, this
command must be called before any other commands.
-
::profiler::dump pattern
-
Dump profiling information for the all functions matching
pattern. If no pattern is specified, information for all
functions will be returned. The result is a list of key/value pairs
that maps function names to information about that function. The
information about each function is in turn a list of key/value pairs.
The keys used and their values are:
- totalCalls
-
The total number of times functionName was called.
- callerDist
-
A list of key/value pairs mapping each calling function that called
functionName to the number of times it called
functionName.
- compileTime
-
The runtime, in clock clicks, of functionName the first time
that it was called.
- totalRuntime
-
The sum of the runtimes of all calls of functionName.
- averageRuntime
-
Average runtime of functionName.
- descendantTime
-
Sum of the time spent in descendants of functionName.
- averageDescendantTime
-
Average time spent in descendants of functionName.
-
::profiler::print ? pattern ?
-
Print profiling information for all functions matching pattern.
If no pattern is specified, information about all functions will be
displayed. The return result is a human readable display of the
profiling information.
-
::profiler::reset ? pattern ?
-
Reset profiling information for all functions matching pattern.
If no pattern is specified, information will be reset for all
functions.
-
::profiler::suspend ? pattern ?
-
Suspend profiling for all functions matching pattern. If no
pattern is specified, profiling will be suspended for all
functions. It stops gathering profiling information after this command
is issued. However, it does not erase any profiling information that
has been gathered previously. Use resume command to re-enable
profiling.
-
::profiler::resume ? pattern ?
-
Resume profiling for all functions matching pattern. If no
pattern is specified, profiling will be resumed for all functions.
This command should be invoked after suspending the profiler in the
code.
-
::profiler::sortFunctions key
-
Return a list of functions sorted by a particular profiling statistic.
Supported values for key are: calls,
exclusiveTime, compileTime, nonCompileTime,
totalRuntime, avgExclusiveTime, and
avgRuntime. The return result is a list of lists, where each
sublist consists of a function name and the value of key for
that function.
This document, and the package it describes, will undoubtedly contain
bugs and other problems.
Please report such in the category
profiler of the
http://sourceforge.net/tracker/?group_id=12883.
Please also report any ideas for enhancements you may have for either
package and/or documentation.
profile, performance, speed