> regex.c > RegexTest.java MHz > 0.01s 0:13.17 99.6% 5569 ms 1503 > Solaris x86 6.28u 0.00s 0:06.29 99.8% > 2571 ms 2813 > ux 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! > y comments or ideas, how to get better performance? > Already tried > everal 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/ > rtment of Computer Science Geb. 29 R 027, > Universitaetsplatz 2 > 39106 Magdeburg, Germany Tel: +49 391 67 > 12768 > _______________________________________________ > opensolaris-code mailing list > [EMAIL PROTECTED] > http://mail.opensolaris.org/mailman/listinfo/opensolar > is-code
Just out of curiosiry and even though I know this isn't going to be apple-to-apple comparison but I just compiled the regex.c at a RHEL 7.2 + Intel 2.5 GHz + 1GB RAM + gcc 2.96 and at a S10 FCS i386 + Intel 2.0 GHz + 1GB RAM + SS11 and ran them with the same termcap file that I got from S10 FCS system (and they are both running with C locale): Here are the result using csh time (after I fresh rebooted the systems and doing nothing else), each is a median one after 10 runnings: time ./regex-rhel7.2 /tmp/termcap 2.170u 0.000s 0:02.18 99.5% 0+0k 0+0io 97pf+0w time ./regex-s10-i386 /tmp/termcap 2.0u 0.0s 0:02 70% 0+0k 0+0io 0pf+0w Note that S10 is running on a PC with 500MHz slower CPU. Could anyone try the latest RHEL or any other recent Linux distros if you have them handy? Ienup This message posted from opensolaris.org _______________________________________________ perf-discuss mailing list perf-discuss@opensolaris.org
