Finding slowdowns in pkg_install (continuations of previous threads)
Garrett Cooper
youshi10 at u.washington.edu
Thu Jul 5 06:59:07 UTC 2007
I'm currently running a gamut of tests (500 tests, per package --
128 total on my server), and outputting all data to CSV files to
interpret later, using another Perl script to interpret calculated
averages and standard deviations.
Using basic printf(2)'s with clock_gettime(2) I have determined that
the majority of the issues are disk-bound (as Tom Kientzle put it). The
scope of my problem is not to analyze tar, but I've discovered that a
lot of time is spent in reading and interpreting the +CONTENTS and
related files (most notably in parsing commands to be honest).
Will post more conclusive results tomorrow once all of my results
are available.
Cheers,
-Garrett
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