Messages in this thread | | | From | Jakub Jelinek <> | Subject | Re: bad lmbench numbers for mmap | Date | Fri, 16 Apr 1999 23:35:02 +0200 (CEST) |
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> hi, > I tried lmbench 1.9 on an ultra5 (270 MHz, 128 MB RAM) running > linux 2.2.2 and compared with an identical machine running solaris 2.6(except > it had 64M). linux blew solaris away in most of the benchmarks except mmap > latency.
Actually, all the numbers are horribly bad on the ultra. I haven't run lmbench for a while, and I see it was a mistake. The mmap is clearly very bad, especially when 2.1.103 kernel on 167 MHz Ultra had mmap latency of 1505usec. I'll check what's going on. Anyway, we have a couple of new things prepared for sparc64 for 2.3 once that gets opened, so the numbers might actually get better again.
BTW: So that I have good comparisons, can you please send me full benchmark numbers (best the results/ files) from your 450PII and ultra5/Solaris, preferably using ftp://ftp.bitmover.com/lmbench/lmbench-2alpha11.tgz ? Thanks.
Cheers, Jakub ___________________________________________________________________ Jakub Jelinek | jj@sunsite.mff.cuni.cz | http://sunsite.mff.cuni.cz Administrator of SunSITE Czech Republic, MFF, Charles University ___________________________________________________________________ UltraLinux | http://ultra.linux.cz/ | http://ultra.penguin.cz/ Linux version 2.2.5 on a sparc64 machine (3958.37 BogoMips) ___________________________________________________________________
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