Date: Fri, 08 Feb 2008 21:43:48 +0100 From: Ivan Voras <ivoras@freebsd.org> To: freebsd-performance@freebsd.org Subject: Re: Performance Tracker project update Message-ID: <foieub$mj6$1@ger.gmane.org> In-Reply-To: <9D27D745-2465-4FB2-B7E0-3C5DD411E9B9@mac.com> References: <4796C717.9000507@cederstrand.dk> <20080123193400.N63024@fledge.watson.org> <4797A245.7080202@cederstrand.dk> <20080123202433.E63024@fledge.watson.org> <4797A802.8060509@FreeBSD.org> <47A0BFE7.4070708@cederstrand.dk> <20080130190000.GA18333@lor.one-eyed-alien.net> <47AC15A5.5020009@cederstrand.dk> <20080208151756.GA35423@lor.one-eyed-alien.net> <foibab$a2g$1@ger.gmane.org> <9D27D745-2465-4FB2-B7E0-3C5DD411E9B9@mac.com>
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[-- Attachment #1 --] Chuck Swiger wrote: > Historically, the Python optimizer wasn't capable of doing much, true, > but the more recent versions of the optimizer can actually do some > peephole optimizations like algorithmic simplification and constant > folding: > > http://docs.python.org/whatsnew/other-lang.html#SECTION0001320000000000000000 A quick test with the built-in pystone mini-benchmark (taken out of the standard library so the optimization can be varied) yields [*]: python without -O : 5802.36 python with -O : 5781.39 In both cases, the commands were: >>> import pystone >>> pystone.main(50000) on Python 2.5.1 (r251:54863, Jan 12 2008, 13:07:38) [GCC 4.2.1 20070719 [FreeBSD]] on freebsd7 I guess they still have to work on the optimizer :) [*] This is on a AMD Geode CPU (500 MHz), so don't compare it with something normal :) [-- Attachment #2 --] -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.5 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFHrL8KldnAQVacBcgRAmPbAJ0QJPTNyNM06mSe6R0/bu+tCEQMWQCfbgsC 40aRAyafzCCINCty2CE2xew= =7ImO -----END PGP SIGNATURE-----help
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