Messages in this thread | | | Date | Wed, 3 Sep 2003 09:59:02 +0200 (MEST) | From | Geert Uytterhoeven <> | Subject | Re: x86, ARM, PARISC, PPC, MIPS and Sparc folks please run this |
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On 2 Sep 2003, Kars de Jong wrote: > fikkie:/tmp# ./jamie_test > Test separation: 4096 bytes: pass > Test separation: 8192 bytes: pass > Test separation: 16384 bytes: pass > Test separation: 32768 bytes: pass > Test separation: 65536 bytes: pass > Test separation: 131072 bytes: pass > Test separation: 262144 bytes: pass > Test separation: 524288 bytes: pass > Test separation: 1048576 bytes: pass > Test separation: 2097152 bytes: pass > Test separation: 4194304 bytes: pass > Test separation: 8388608 bytes: pass > Test separation: 16777216 bytes: pass > VM page alias coherency test: all sizes passed > > New program: > > fikkie:/tmp# time ./jamie_test2 > (2048) [10000,10000,0] Test separation: 4096 bytes: pass > (2048) [10000,10000,0] Test separation: 8192 bytes: pass > (2048) [10000,10000,0] Test separation: 16384 bytes: pass > (2048) [10000,10000,0] Test separation: 32768 bytes: pass > (2048) [10000,10000,0] Test separation: 65536 bytes: pass > (2048) [10000,10000,0] Test separation: 131072 bytes: pass > (2048) [10000,10000,0] Test separation: 262144 bytes: pass > (2048) [10000,10000,0] Test separation: 524288 bytes: pass > (2048) [10000,10000,0] Test separation: 1048576 bytes: pass > (2048) [10000,10000,0] Test separation: 2097152 bytes: pass > (2048) [10000,10000,0] Test separation: 4194304 bytes: pass > (2048) [10000,10000,0] Test separation: 8388608 bytes: pass > (2048) [10000,10000,0] Test separation: 16777216 bytes: pass > VM page alias coherency test: all sizes passed > > real 1m51.210s > user 1m44.950s > sys 0m4.930s > fikkie:/tmp# cat /proc/cpuinfo > CPU: 68020 > MMU: 68851 > FPU: 68881 > Clocking: 15.6MHz > BogoMips: 3.90 > Calibration: 19520 loops > fikkie:/tmp#
So the store buffer is coherent on 68020 with external MMU, while it isn't on 68040 with internal MMU...
Now all that's left is the 68030.
Gr{oetje,eeting}s,
Geert
-- Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org
In personal conversations with technical people, I call myself a hacker. But when I'm talking to journalists I just say "programmer" or something like that. -- Linus Torvalds
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