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SubjectRe: x86, ARM, PARISC, PPC, MIPS and Sparc folks please run this
Date
> 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.
>
> It searches for that address multiple which an application can use to
> get coherent multiple mappings of shared memory, with good performance.

From a Sharp Zaurus C-760. Not very interesting, I'm afraid:

Test separation: 4096 bytes: FAIL - too slow
Test separation: 8192 bytes: FAIL - too slow
Test separation: 16384 bytes: FAIL - too slow
Test separation: 32768 bytes: FAIL - too slow
Test separation: 65536 bytes: FAIL - too slow
Test separation: 131072 bytes: FAIL - too slow
Test separation: 262144 bytes: FAIL - too slow
Test separation: 524288 bytes: FAIL - too slow
Test separation: 1048576 bytes: FAIL - too slow
Test separation: 2097152 bytes: FAIL - too slow
Test separation: 4194304 bytes: FAIL - too slow
Test separation: 8388608 bytes: FAIL - too slow
Test separation: 16777216 bytes: FAIL - too slow
VM page alias coherency test: failed; will use copy buffers instead


Processor : Intel XScale-PXA255 rev 6 (v5l)
BogoMIPS : 397.31
Features : swp half thumb fastmult edsp
CPU implementor : 0x69
CPU architecture: 5TE
CPU variant : 0x0
CPU part : 0x2d0
CPU revision : 6
Cache type : undefined 5
Cache clean : undefined 5
Cache lockdown : undefined 5
Cache unified : harvard
I size : 16384
I assoc : 16
I line length : 32
I sets : 32
D size : 16384
D assoc : 16
D line length : 32
D sets : 32

Hardware : SHARP Shepherd
Revision : 0000
Serial : 0000000000000000

--J.
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