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

[James Morris]

Here's the result for sparc64 (Ultrasparc II):

$ gcc -o test test.c -O2
$ time ./test
Test separation: 8192 bytes: FAIL - cache not coherent
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: minimum fast spacing: 16384 (2 pages)

real    0m0.194s
user    0m0.160s
sys     0m0.040s
$ gcc -o test test.c -O2 -DHAVE_SYSV_SHM
$ time ./test
Test separation: 8192 bytes: FAIL - cache not coherent
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: minimum fast spacing: 16384 (2 pages)

real    0m0.162s
user    0m0.140s
sys     0m0.020s

$ cat /proc/cpuinfo

cpu             : TI UltraSparc II  (BlackBird)
fpu             : UltraSparc II integrated FPU
promlib         : Version 3 Revision 23
prom            : 3.23.1
type            : sun4u
ncpus probed    : 2
ncpus active    : 2
Cpu0Bogo        : 591.46
Cpu0ClkTck      : 0000000011a4f2ed
Cpu2Bogo        : 591.46
Cpu2ClkTck      : 0000000011a4f2ed
MMU Type        : Spitfire
State:
CPU0:           online
CPU2:           online



-- 
James Morris
<jmorris@xxxxxxxxxxxxxxxx>

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