Messages in this thread |  | | Date | Mon, 3 Feb 1997 12:43:15 -0700 (MST) | From | Franz <> | Subject | Pentium optimized kernel |
| |
hey I'm trying to build a pentium optimized kernel but my benchmarks aren't any better (actually sometimes worse)
I have used the latest pentium compiler snapshot, and I'm using the pentium memcpy patch ... but benchmarks are about the same as they were before ...
I thught I have missed something ...
in my Makefile I tried several diff optimizations but -O6 produces too large kernel, and -O2 works but no speed inncrease ..
in arch/i386/Makefile I have changed the pentium compiler options to -mpentium and took out the aligments, since leaving them in left the kernel SLOWER then it used to be ... I have tried it with/without th epentium patch .. but whatever I do my benchmark (byte) ... is allways 14.[0-6] and lower .... usually at 14 somewhere ... In the actual numbers there seems to be just a tiny fluctuation but no serious increase decrease ... (well once it dropped to about 12 for average when I mistakenly 486 optimzied it with the pentium compiler :)
what are the best flags to use with the pentium pgcc snapshot ....
btw I'm running Pentium 133, kernel 2.1.25, 48 meg ram ... I ain't on my machine so I can't send the cpuinfo ....
otherwise then being slow the system runs perfect ... no glitches ... (well slow .... I mean it's running at the same speed as 486 optimized :)
George
|  |