Author: Robert Hyatt
Date: 20:34:44 01/15/03
Go up one level in this thread
On January 15, 2003 at 21:39:59, David Rasmussen wrote: >I'm a little bit unclear about the data created during phase one of the profiler >guided optimization phase. Should I delete the dyn data whenever I make a >change, or will it find out itself what data is still useful etc. ? > >Can I make more than one run to create profiler data? > >What I do now is this: Once in a while I do a profiler phase with an >instrumented build, but most of the time, I just compile in feedback mode (phase >3) even if I make a lot of changes etc. > >What is the correct way? > >/David I am not sure about that either, so when I change something I get rid of all the files. however, you can make multiple runs and get multiple .dyn files and it will "combine" 'em when optimizing to get better branch probabilities... I have a "make profile" in my makefile that clears the files, compiles with the prof_gen option, runs a set of positions, touches all the source files and compiles again with prof_use...
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