feedback man page on DigitalUNIX

Man page or keyword search:  
man Server   12896 pages
apropos Keyword Search (all sections)
Output format
DigitalUNIX logo
[printable version]

feedback(1)							   feedback(1)

       feedback - Generate an optimization feedback file using pixie and prof

       feedback	 [prof-options] [-o feedback-file] [-v] objfile [objfile-argu‐

       The feedback command accepts the	 following  prof(1)  options  and  any
       unambiguous  abbreviations: -asm, -clock megahertz, -{e|E}xclude proce‐
       dure_name, -feedback filename,  -heavy,	-invocations,  -lines,	-merge
       filename,  -numbers,  -{o|O}nly	procedure_name,	 -procedures, -quit n,
       -testcoverage, -truecycles [0,1,2], -zero.

	      The feedback command ignores all other options in order to  pro‐
	      vide compatiblility with older versions of the feedback command.
	      An option argument following an option not recognized by this or
	      older  versions  of  the feedback command will be treated as the
	      objfile argument.	 Specifies the name of the feedback file. This
	      can  also	 be  specified	by  the -feedback option of prof.  You
	      should use only one of these options to specify a feedback file,
	      not  both.   Causes the pixie, application, and prof commands to
	      be printed as they are invoked.

       Specifies the executable of the application for which a	feedback  file
       is  to  be  generated.  A pixie-instrumented version of this executable
       will be executed with the current  working  directory  and  environment
       variables.  The feedback file that is generated will reflect the behav‐
       ior of one execution of the instrumented objfile. Specify the arguments
       that  will  cause the behavior that you want to have optimized when the
       compiler uses the feedback file.

       The feedback command invokes pixie to add profiling code to  an	object
       file.  The object file generated by pixie is executed to obtain profil‐
       ing information.	 The feedback command then invokes prof to analyze the
       profiling information.

       If  the output of objfile needs to be redirected, but not the output of
       the feedback utility, the redirection characters	 need  to  have	 sh(1)
       syntax  and  be	within	quotes.	 If  objfile  is  multi-threaded,  the
       LD_LIBRARY_PATH environment variable needs to include the current work‐
       ing directory.

       Send  the  profiling  information  to  the  standard output: $ feedback
       myprog Write  a	binary	formatted  performance	profile	 to  the  file,	 which	then helps a subsequent recompilation optimize
       the program: $ feedback -feedback myprog $ cc -O -feed‐
       back -o myprog myprog.c

       Object with profiling code. Generated by pixie.	Basic block addresses.
       Generated by pixie.  Basic block counts.	 Generated by myprog.pixie.

       Note: Run pixie and prof independently if alternative names are needed.

       cc(1), pixie(5), prof(1)


List of man pages available for DigitalUNIX

Copyright (c) for man pages and the logo by the respective OS vendor.

For those who want to learn more, the polarhome community provides shell access and support.

[legal] [privacy] [GNU] [policy] [cookies] [netiquette] [sponsors] [FAQ]
Polarhome, production since 1999.
Member of Polarhome portal.
Based on Fawad Halim's script.
Vote for polarhome
Free Shell Accounts :: the biggest list on the net