[Boost-bugs] [Boost C++ Libraries] #3850: [Boost.tracer] library request

Subject: [Boost-bugs] [Boost C++ Libraries] #3850: [Boost.tracer] library request
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2010-01-19 23:41:40

#3850: [Boost.tracer] library request
---------------------------------+------------------------------------------
 Reporter:  achinkoff@…          |       Owner:          
     Type:  Feature Requests     |      Status:  new     
Milestone:  Boost 1.42.0         |   Component:  None    
  Version:  Boost 1.41.0         |    Severity:  Cosmetic
 Keywords:  tracer               |  
---------------------------------+------------------------------------------
 [Boost.tracer] library request is founded on a desire to
 trace some statistics about program execution.

 The sample program below demonstrates these statistics.

 Sample program file:


 {{{
 #include <tracer.h>
 void foo()
 {
     TRACE_LIFETIME;
     usleep(rand() % 100000);
 }
 int main()
 {
     TRACE_LIFETIME;
     for(int i = 0; i < 100; ++i)
         foo();
 }

 }}}

 Produced log file:


 {{{
 All the program time: 05265686 us (micro secs)

 TRACE POINT:
  Function:                       int main()
  Calls:                          0000000001 times
  Average T between calls:        0000000000 us
  Average life T:                 0005264459 us
  File:                           main.cpp
  Line:                           00000009

 TRACE POINT:
  Function:                       void foo()
  Calls:                          0000000100 times
  Average T between calls:        0000051665 us
  Average life T:                 0000052606 us
  File:                           main.cpp
  Line:                           00000004

 }}}

 Comment:

 TRACE_LIFETIME is a MACRO that traces some scope statistics, namely:
 [[BR]]
 "Function" - the function name where the scope is;
 [[BR]]
 "Calls" - number of entries into this scope;
 [[BR]]
 "Average T between calls" - average time period between "Calls";
 [[BR]]
 "Average life T" - average time spent in this scope.

 Conclusion:

 I think it is reasonable to introduce this trace functionality into
 (for example) boost::tracer namespace.
 I had wrote tracer.h and tracer.cpp source files and
 I wish Boost community to consider them.

 Thank You.

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/3850>
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