Date: Sat, 23 Dec 1995 22:27:16 -0800 From: David Greenman <davidg@Root.COM> To: gclarkii@freebsd.org Cc: freebsd-hackers@freebsd.org Subject: Re: Pentium bcopy 486DX-66 results Message-ID: <199512240627.WAA00623@corbin.Root.COM> In-Reply-To: Your message of "Sun, 24 Dec 95 00:21:25 CST." <199512240621.AAA01040@main.gbdata.com>
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>Here are my results on a 486DX4-100 8 meg in X not sure about cache. > >gcc -m486 -O2 -o testcopy testing.c copy.o >main:gclarkii# time testcopy >copy 10232 >bcopy 2403 >memcpy 9315 >21.9u 0.0s 0:22.08 99.5% 5+183k 1+0io 0pf+0w > >My sources are using 1024 for SIZE and I just change copy for bcopy for the >bcopy stats. It looks like copy is a big loss for me...:( "copy" takes it's size in longwords and bcopy takes it in bytes. Did you multiply the size times sizeof(int)? -DG
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