2011/11/29 Thiago Macieira <thiago.macie...@intel.com>: > On Friday, 25 de November de 2011 08.30.56, lars.kn...@nokia.com wrote: >> My proposal would be to simplify this setup and start relying on ICU for >> many of the tasks. We would still expose things through a Qt API though. >> It would simplify the maintenance of our Unicode support, as we can rely >> on ICU for most things. > > Looks like we're settled on ICU. I can't find the thread on the regular > expression library tests -- has anyone looked at ICU RE? How does it compare > in terms of *performance* with PCRE?
If some ICU expert may kindly review my code (so that I'm sure I didn't do anything stupid :( ), here you are some results inspired by this simple test [1] (using the same regexps and test data [2]). ********* Start testing of REBenchmark ********* Config: Using QTest library 4.7.4, Qt 4.7.4 PASS : REBenchmark::initTestCase() RESULT : REBenchmark::PCREBenchmark():"URI": 1,126 msecs per iteration (total: 1,126, iterations: 1) RESULT : REBenchmark::PCREBenchmark():"Email": 1,800 msecs per iteration (total: 1,800, iterations: 1) RESULT : REBenchmark::PCREBenchmark():"Date": 99 msecs per iteration (total: 99, iterations: 1) RESULT : REBenchmark::PCREBenchmark():"URI|Email": 2,637 msecs per iteration (total: 2,637, iterations: 1) PASS : REBenchmark::PCREBenchmark() RESULT : REBenchmark::ICUBenchmark():"URI": 12,957 msecs per iteration (total: 12,957, iterations: 1) RESULT : REBenchmark::ICUBenchmark():"Email": 17,972 msecs per iteration (total: 17,972, iterations: 1) RESULT : REBenchmark::ICUBenchmark():"Date": 393 msecs per iteration (total: 393, iterations: 1) RESULT : REBenchmark::ICUBenchmark():"URI|Email": 35,858 msecs per iteration (total: 35,858, iterations: 1) PASS : REBenchmark::ICUBenchmark() PASS : REBenchmark::cleanupTestCase() Totals: 4 passed, 0 failed, 0 skipped ********* Finished testing of REBenchmark ********* Testing platform is Ubuntu 10.04 LTS 32 bit, Core(TM)2 Duo CPU P9600 @ 2.66GHz, 4GB RAM, GCC 4.4.3, Qt 4.7.4, PCRE 8.20, ICU 4.8.1.1. Code is here: http://pastebin.com/UjTNEVW1 . Cheers, -- Giuseppe D'Angelo [1] http://lh3lh3.users.sourceforge.net/reb.shtml [2] http://people.unipmn.it/manzini/lightweight/corpus/howto.bz2 _______________________________________________ Development mailing list Development@qt-project.org http://lists.qt-project.org/mailman/listinfo/development