regex.c RegexTest.java MHz
Solaris sparc 13.12u 0.01s 0:13.17 99.6% 5569 ms 1503
Solaris x86 6.28u 0.00s 0:06.29 99.8% 2571 ms 2813
Linux i686 0.704u 0.004s 0:00.70 100.0% 5587 ms 2079.593
Summary:
- Java Regex on Solaris is ~ 2.5x faster than the native Impl.
(hello?)
- Java Regex on Linux is ~ 8x slower than the native Impl.
- performance is more or less directly related to System CPU Freq.
- Linux native regex Impl. is ~ 12.5x faster than Solaris native
regex impl. (correlated to CPU freq., no big difference whether
compared with x86 or sparc)
Solaris native regex impl. really sucks!
Solaris driven maschines are one of the worst choice to use e.g.
for regex driven mail filters!
Any comments or ideas, how to get better performance? Already tried
several compiler settings and ancient GNU regex source without success.
More information about test environments (HW/SW) and example progs used
are available via: http://iws.cs.uni-magdeburg.de/~elkner/regex/
Regards,
jel.
--
Otto-von-Guericke University http://www.cs.uni-magdeburg.de/
Department of Computer Science Geb. 29 R 027, Universitaetsplatz 2
39106 Magdeburg, Germany Tel: +49 391 67 12768
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