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pre-2.18 performance data
- From: Arjan van de Ven <arjanvandeven at gmail dot com>
- To: libc-alpha at sourceware dot org
- Date: Sat, 20 Jul 2013 13:57:56 -0700
- Subject: pre-2.18 performance data
Hi,
[not sure if this sort of thing is appreciated on this list; if not let me know]
Yesterday I put an early snapshot of glibc 2.18 into my distro (using
git hash 19a601f7b2fc69201c296f0720459a32dda5f4c3), to give it a spin
for compatibility and performance.
No compatibility issues so far;
on the performance side, the good news is that there are no
performance regressions in the tests that I run automatically, and
there are some real performance improvements.
The "smallpt" benchmark (floating point heavy) is showing high-double
digit %age improvements
XZ decompression, n-queens and the libxml2 performance tests all show
low single digit %age improvements
a few tests are noisy and will get run a few more times in the next 24
hours before any conclusion can be made.
graphical results are at http://linux.fenrus.org/performance/ (the
datapoints prior to July 19th are with glibc 2.17, the data points for
the 19th and later are with the above mentioned commit as system
glibc)