Re: x86, ARM, PARISC, PPC, MIPS and Sparc folks please run this

[Geert Uytterhoeven]

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@xxxxxxxxxxxxxx

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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