I forgot to post to this list yesterday, so here's my latest email to the dev list:
--------- Forwarded message ---------- From: Scott Brown <[email protected]> Date: Sun, Jul 27, 2014 at 8:16 AM Subject: Re: [flac-dev] 1.21 vs 1.3 encoding speed To: Martijn van Beurden <[email protected]> Cc: [email protected] Adding -O3 now has these results: 51.81 seconds for the file that took 222 seconds without -O3. So that was it. Thank you! Scott On Sat, Jul 26, 2014 at 3:47 AM, Martijn van Beurden <[email protected]> wrote: op 25-07-14 19:32, Scott Brown schreef: > ./configure -enable-static -disable-shared CFLAGS=" -isysroot > /Developer/SDKs/MacOSX10.6.sdk -mmacosx-version-min=10.6" > make Well, the use of CFLAGS 'disables' the -O3 and unroll-loops optimisation. I'm quite sure that's the culprit. Add -O3 to your CFLAGS and it should be fixed. See the following lines in the configure script > if test "x$user_cflags" = x; then > CFLAGS="-O3 -funroll-loops -Wall -W -Winline" > fi Maybe we should change this 'overriding' behaviour of CFLAGS and add -O3 just like most other options are added to the CFLAGS? ______________________________ _________________ flac-dev mailing list [email protected] http://lists.xiph.org/mailman/listinfo/flac-dev On Sat, Jul 26, 2014 at 11:38 AM, <[email protected]> wrote: > Please cc: the results from dev list back here though > > I would run some tests on a diff platform but don't have access to my PC > for a few weeks > > Would also be interesting to see what decoding stats you get > > On Jul 25, 2014, at 7:38 AM, Scott Brown <[email protected]> wrote: > > I will post to the dev list, sorry about that. > > To give an idea, though, at flac level 8: > > 24/96 wav file > 1.21: 61.05 seconds. ratio=0.690 > 1.3: 222.48 seconds. ratio=0.690 > > smaller 16/44.1 wav file > 1.21: 14.28 seconds. ratio=0.487 > 1.3: 51.21 seconds. ratio=0.487 > > Scott > > > On Fri, Jul 25, 2014 at 2:39 AM, <[email protected]> wrote: > >> Are you sure they didn't change the default encoding level ? >> >> I would include some example timings to give a better idea of what >> "significantly slower" is >> >> Wonder if you see same for 44/16 files? >> >> On Jul 25, 2014, at 2:29 AM, Martijn van Beurden <[email protected]> >> wrote: >> >> Hi, >> >> You might want to report this to the flac-dev mailinglist instead of the >> flac (users) list. >> >> op 24-07-14 22:02, Scott Brown schreef: >> >> Hello, >> >> I'm on a Mac and I'm noticing that encoding via the flac command line is >> significantly slower with version 1.3.0 than 1.2.1. I'm encoding a 24/96 >> file to flac, both from wav and aiff and both formats are showing the same >> speed decrease when using 1.3.0. >> >> Also, 1.2.1 will not encode an aiff-c file, but 1.3.0 will. Is this >> change documented anywhere? >> >> Thanks, >> Scott >> >> >> _______________________________________________ >> Flac mailing [email protected]http://lists.xiph.org/mailman/listinfo/flac >> >> >> _______________________________________________ >> Flac mailing list >> [email protected] >> http://lists.xiph.org/mailman/listinfo/flac >> >> >> _______________________________________________ >> Flac mailing list >> [email protected] >> http://lists.xiph.org/mailman/listinfo/flac >> >> >
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