Date: Sat, 23 Dec 1995 21:40:58 -0800 From: David Greenman <davidg@Root.COM> To: "Jonathan M. Bresler" <jmb@freebsd.org> Cc: Torbjorn Granlund <tege@matematik.su.se>, michael butler <imb@scgt.oz.au>, freebsd-hackers@freebsd.org Subject: Re: Pentium bcopy 486DX-66 results Message-ID: <199512240541.VAA00518@corbin.Root.COM> In-Reply-To: Your message of "Sat, 23 Dec 95 23:43:35 EST." <Pine.BSF.3.91.951223233447.23830A-100000@Aspen.Woc.Atinc.COM>
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>On Sun, 24 Dec 1995, Torbjorn Granlund wrote: >> >> I don't have any 486 systems, so I cannot tell for sure. Here is a simple >> test program that you can use for timing tests: > > here are results using 2.1.0-RELEASE, a 486dx-66 with an asus sp3g >motherboard and write-back cache discipline. > >Aspen:[45] ./a.out >copy 8259 >memcpy 8582 > > the results vary with the number of times in succession that i >run the program ;) > > Once Twice Thrice 4th 5th 6th 7th >copy 8259 6730 6709 6708 6706 6736 6695 >memcpy 8582 7363 7605 7491 6667 6863 7819 > > i had to change the comment sytle on several lines to satisfy gas >"GNU assembler version 1.92.3, FreeBSD $Revision: 1.4 $" You should have just used cc to assemble it - name the file copy.S and then use: cc -c copy.S cc -o copytest copytest.c copy.o This will run it through cpp. ...thanks for the results. -DG
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