Hi Steve and team, I have checked CStyle.py and used profile module to get the time bottleneck, which seems it is re.search()/re.match(). Pls see attached file (getbottleneck.log) to get the detail.
Also, I investigated the ctyle.pl and the implement of regular expression(RE for short) in perl. RE is implemented via C in perl while it is implemented in re.py in python. So, it seems reasonable that the performance of CStyle.py is lower than ctyle.pl. At least I think the performance of perl's RE is higher than python RE module. I have writen a simple testing as: $ cd /net/torp280.sfbay/export/ws/nfstest/vector/ops/src/scm/usr/src/tools/onbld/wrk/TestPerlVsPython $ ./run_foo.ksh ../stat.c 100 stdenv | max loop: 100 stdenv | c file: ../stat.c stdenv | binfiles: foo.pl foo.py stdenv | stdout | run testing for foo.pl using ../stat.c stdout | begin: Mon Apr 23 04:57:27 EDT 2007 stdout | end: Mon Apr 23 04:57:28 EDT 2007 stdout | stdout | run testing for foo.py using ../stat.c stdout | begin: Mon Apr 23 04:57:28 EDT 2007 stdout | end: Mon Apr 23 04:57:31 EDT 2007 stdout | $ From above, we can see the performance of perl's RE is 2-3 times higher than python's RE's. Pls see run_foo.ksh/foo.pl/foo.py/stat.c in attachment. Last, I have two questions here, 1. What the acceptable performance of CStyle.py in comparison with cstyle.pl? 2. Any other possible bottleneck of CStyle.py? Please add your suggestion/comments, thanks! -- Regards, Vector Swan: 80534 Tel : + 86 10 62673534 -------------- next part -------------- A non-text attachment was scrubbed... Name: foo.pl Type: application/x-perl Size: 198 bytes Desc: not available URL: <http://mail.opensolaris.org/pipermail/scm-migration-dev/attachments/20070423/c66b1b14/attachment.pl> -------------- next part -------------- A non-text attachment was scrubbed... Name: foo.py Type: text/x-python Size: 522 bytes Desc: not available URL: <http://mail.opensolaris.org/pipermail/scm-migration-dev/attachments/20070423/c66b1b14/attachment.py> -------------- next part -------------- An embedded and charset-unspecified text was scrubbed... Name: run_foo.ksh URL: <http://mail.opensolaris.org/pipermail/scm-migration-dev/attachments/20070423/c66b1b14/attachment.ksh> -------------- next part -------------- A non-text attachment was scrubbed... Name: getbottleneck.log Type: text/x-log Size: 5191 bytes Desc: not available URL: <http://mail.opensolaris.org/pipermail/scm-migration-dev/attachments/20070423/c66b1b14/attachment.bin>
