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

From: Sergey S. Kostyliov
Date: Fri Aug 29 2003 - 05:07:21 EST


Hi Jamie,

On Friday 29 August 2003 09:35, Jamie Lokier wrote:
> Dear All,
>
> 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.
rathamahata@test rathamahata $ gcc -march=athlon-xp -mcpu=athlon-xp -fomit-frame-pointer -O2 -o test test.c
rathamahata@test rathamahata $ time ./test
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: 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: 32768 (8 pages)

real 0m0.097s
user 0m0.091s
sys 0m0.006s
rathamahata@test rathamahata $ cat /proc/cpuinfo
processor : 0
vendor_id : AuthenticAMD
cpu family : 6
model : 8
model name : AMD Athlon(tm) MP 2200+
stepping : 0
cpu MHz : 1800.967
cache size : 256 KB
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 1
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 mmx fxsr sse syscall mp mmxext 3dnowext 3dnow
bogomips : 3538.94

processor : 1
vendor_id : AuthenticAMD
cpu family : 6
model : 8
model name : AMD Athlon(tm) Processor
stepping : 0
cpu MHz : 1800.967
cache size : 256 KB
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 1
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 mmx fxsr sse syscall mp mmxext 3dnowext 3dnow
bogomips : 3596.28


--
Best regards,
Sergey S. Kostyliov <rathamahata@xxxxxxx>
Public PGP key: http://sysadminday.org.ru/rathamahata.asc
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