A little speed up for awk

Matthew Dillon dillon at apollo.backplane.com
Sun Oct 31 10:30:49 PST 2004


:-On [20041031 00:42], Matthew Dillon (dillon at xxxxxxxxxxxxxxxxxxxx) wrote:
:>    Well, that's a fine little patch but I really doubt it will
:>    make much of a dent in awk's performance.
:
:It did for this case.
:
:>    If you really want to have a go at tracking down potential
:>    performance issues I recommend first doing some side-by-side
:>    comparisons between the old and new awk and then compiling
:>    up the new awk with profiling (-pg) and seeing if there is
:>    anything obvious in the profile output that could be fixed.
:>    The issue is likely to be algorithmic in nature.
:
:http://www.in-nomine.org/~asmodai/awk.txt is the profiling output in
:question.
:
:http://www.in-nomine.org/~asmodai/mawk.txt is mawk's profiling of the same
:case.
:
:-- 
:Jeroen Ruigrok van der Werven <asmodai(at)wxs.nl> / asmodai / kita no mono

    Well, you can make that change if you want but these profiles are virtually
    meaningless for such a simple test case.

					-Matt
					Matthew Dillon 
					<dillon at xxxxxxxxxxxxx>





More information about the Submit mailing list