Messages in this thread | | | Date | Fri, 29 Aug 2003 18:27:49 +0200 (MEST) | From | Geert Uytterhoeven <> | Subject | Re: x86, ARM, PARISC, PPC, MIPS and Sparc folks please run this |
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On Fri, 29 Aug 2003, Jamie Lokier wrote: > I'd appreciate if folks would run the program below on various > machines, especially those whose caches aren't automatically coherent > at the hardware level.
Are you also interested in m68k? ;-)
cassandra:/tmp# time ./test Test separation: 4096 bytes: FAIL - store buffer not coherent Test separation: 8192 bytes: FAIL - store buffer not coherent Test separation: 16384 bytes: FAIL - store buffer not coherent Test separation: 32768 bytes: FAIL - store buffer not coherent Test separation: 65536 bytes: FAIL - store buffer not coherent Test separation: 131072 bytes: FAIL - store buffer not coherent Test separation: 262144 bytes: FAIL - store buffer not coherent Test separation: 524288 bytes: FAIL - store buffer not coherent Test separation: 1048576 bytes: FAIL - store buffer not coherent Test separation: 2097152 bytes: FAIL - store buffer not coherent Test separation: 4194304 bytes: FAIL - store buffer not coherent Test separation: 8388608 bytes: FAIL - store buffer not coherent Test separation: 16777216 bytes: FAIL - store buffer not coherent VM page alias coherency test: failed; will use copy buffers instead
real 0m0.478s user 0m0.110s sys 0m0.190s cassandra:/tmp# cat /proc/cpuinfo CPU: 68040 MMU: 68040 FPU: 68040 Clocking: 24.8MHz BogoMips: 16.53 Calibration: 82688 loops cassandra:/tmp#
callisto$ time ./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
real 0m0.329s user 0m0.270s sys 0m0.050s callisto$ cat /proc/cpuinfo cpu : 604r clock : 200MHz revision : 18.3 (pvr 0009 1203) bogomips : 398.13 machine : CHRP IBM,LongTrail-2 memory bank 0 : 32 MB SDRAM memory bank 1 : 32 MB SDRAM memory bank 2 : 32 MB SDRAM memory bank 3 : 32 MB SDRAM board l2 : 512 KB Pipelined Synchronous (Write-Through) callisto$
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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