On Fri, 2007-05-04 at 19:58 +0400, valiy wrote: > Tom Evans wrote: > > On Fri, 2007-05-04 at 18:03 +0400, valiy wrote: > > <SNIP> > > > >> TEST1 > >> FreeBSD idx 6.1-RELEASE-p10 FreeBSD 6.1-RELEASE-p10 #1: Wed Nov 8 > >> 18:59:20 UTC 2006 [EMAIL PROTECTED]:/usr/src/sys/amd64/compile/SMP > >> amd64 > >> > >> > >> 19:07:15 [EMAIL PROTECTED] ~ $ g++ ./test_set.cpp > >> 19:07:23 [EMAIL PROTECTED] ~ $ ./a.out > >> filling > >> clearing > >> done > >> alloc time 1.938 clear time 15.290 > >> > > <SNIP> > > > >> TEST2 > >> FreeBSD proton 5.5-RELEASE FreeBSD 5.5-RELEASE #0: Mon Jun 26 21:47:56 > >> MSD 2006 [EMAIL PROTECTED]:/usr/src/sys/i386/compile/PROTON i386 > >> [EMAIL PROTECTED] ~]# g++ test_set.cpp > >> [EMAIL PROTECTED] ~]# ./a.out > >> filling > >> clearing > >> done > >> alloc time 2.529 clear time 5.685 > >> > >> > > <SNIP> > > > >> TEST3: > >> FreeBSD hotdog 4.9-RELEASE FreeBSD 4.9-RELEASE #3: Fri Jul 1 19:35:10 > >> MSD 2005 [EMAIL PROTECTED]:/usr/src/sys/compile/HOTDOG i386 > >> > >> 19:18 [EMAIL PROTECTED] vvolodin $ ./a.out > >> filling > >> clearing > >> done > >> alloc time 4.001 clear time 0.305 > >> > >> pentium3 2x700MHz > >> > >> how to fix? > >> > >> > > > > (Couldnt see your 6.2 result, did I snip it?) > > > > Upgrade to 6.2, or for better results, 7-CURRENT > > $ uname -a && ./stl_test > > FreeBSD zoot.mintel.co.uk 7.0-CURRENT FreeBSD 7.0-CURRENT #1: Wed Mar 28 > > 12:29:25 BST 2007 [EMAIL PROTECTED]:/usr/obj/usr/src/sys/ZOOT > > i386 > > filling > > clearing > > done > > alloc time 2.252 clear time 0.441 > > (CURRENT with no INVARIANTS nor WITNESS, and MALLOC_PRODUCTION defined) > > > > > > $ uname -a && ./stl_test > > FreeBSD bob.mintel.co.uk 6.2-RELEASE FreeBSD 6.2-RELEASE #0: Thu Jan 18 > > 14:18:05 GMT 2007 [EMAIL PROTECTED]:/usr/obj/usr/src/sys/BOB > > i386 > > filling > > clearing > > done > > alloc time 2.705 clear time 5.691 > > > > Is your test for 4 using GCC 2.95 ? C++ in GCC 2.95 is «interesting» in > > the shortcuts it takes. > > > We didn't include 6.2 report in mail, but we experience same probles. > results are exactly as yours above (alloc time 2.7 clear time 5.6) > > BSD 4 test was using compiler 2.95 > > Is there any way to fix it without upgrading to 7.0?
Not sure, I'd be interested in this as well, we do LOTS of computation using STL containers (and run 6.2 everywhere). I was advised that bob [the 6.2 box I tested on] 'was a bit s***', so I've also tested on another box: > $ uname -a && ./stl_test FreeBSD roley.mintel.co.uk 6.2-RELEASE FreeBSD 6.2-RELEASE #1: Wed Jan 17 10:37:46 GMT 2007 [EMAIL PROTECTED]:/usr/obj/usr/src/sys/ROLEY amd64 filling clearing done alloc time 1.968 clear time 12.420 Seems that amd64 is even worse in this situation than i386. Very curious. I didn't mention it before, but all of my tests are done using GCC 3.4.6 Cheers Tom
signature.asc
Description: This is a digitally signed message part
