Date: Tue, 1 Apr 1997 16:47:25 +0300 (EET DST) From: mika ruohotie <bsdhack@shadows.aeon.net> To: hackers@freebsd.org Subject: p166 vs. p166mmx Message-ID: <199704011347.QAA20476@shadows.aeon.net>
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well, i was curious about this, and wanted to find out the truth... this is exactly identical set of src, though today's 2.1-STABLE since my desktop at work runs stable, and i had to do it at work, couldnt carry the cpu to home so i could've done it on 3.0-CURRENT. machine was Gigabyte GA586HX512 board (with tag chip for full caching) using 64 megs of true parity micron ram, in two 32 meg simms. it has adaptec 2940 uw, only one quantum atlas-ii fast wide. i had /usr/src and /tmp mounted async (noatime doesnt work in stable, i tried), /usr/obj is goes to /tmp. oh, and ahc options scbpaging, tagenable and memio were used. /tmp was empty in the beginning for both. both created identical log from the compiling, i diffed it and only lines that differed included echoed dates. it would've compiled without the -k on both times. i think i should mention machine was on net and i ran afterstep pre6 and several xterms while it compiled. first normal intel pentium 166mhz: -- make -k world 7595.59s user 1843.94s system 87% cpu 3:00:48.28 total make depend 25.66s user 9.29s system 79% cpu 44.132 total text data bss dec hex 798720 53248 95220 947188 e73f4 make 237.70s user 27.34s system 84% cpu 5:12.39 total 960912 Apr 1 11:55 -- then, the intel pentium 166mhz with mmx -- make -k world 5982.25s user 1636.02s system 87% cpu 2:24:21.88 total make depend 21.54s user 8.26s system 78% cpu 37.911 total text data bss dec hex 798720 53248 95220 947188 e73f4 make 188.30s user 25.57s system 89% cpu 3:58.24 total 960912 Apr 1 15:31 -- i was somewhat impressed, and surprised. mickey
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