"George Spelvin" <linux@xxxxxxxxxxx> writes:
> After studying Andy Polyakov's optimized x86 SHA-1 in OpenSSL, I've
> got a version that's 1.6% slower on a P4 and 15% faster on a Phenom.
> I'm curious about the performance on other CPUs I don't have access to,
> particularly Core 2 duo and i7.
>
> Could someone do some benchmarking for me? Old (486/Pentium/P2/P3)
> machines are also interesting, but I'm optimizing for newer ones.
----------
$ [time] ./586test
Result: a9993e36 4706816a ba3e2571 7850c26c 9cd0d89d
Expected:a9993e36 4706816a ba3e2571 7850c26c 9cd0d89d
500000000 bytes: 5.376325 s
real 0m5.384s
user 0m5.108s
sys 0m0.008s
500000000 bytes: 5.367261 s
5.09user 0.00system 0:05.38elapsed 94%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+378minor)pagefaults 0swaps
----------
$ [time] ./x86test
Result: a9993e36 4706816a ba3e2571 7850c26c 9cd0d89d
Expected:a9993e36 4706816a ba3e2571 7850c26c 9cd0d89d
500000000 bytes: 5.312238 s
real 0m5.325s
user 0m5.060s
sys 0m0.008s
500000000 bytes: 5.323783 s
5.06user 0.00system 0:05.34elapsed 94%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+377minor)pagefaults 0swaps
==========
System:
$ uname -a
Linux roke 2.6.14-11.1.aur.2 #1 Tue Jan 31 16:05:05 CET 2006 \
i686 athlon i386 GNU/Linux
$ cat /proc/cpuinfo
processor : 0
vendor_id : AuthenticAMD
cpu family : 6
model : 4
model name : AMD Athlon(tm) processor
stepping : 2
cpu MHz : 1000.188
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 mtrr pge \
mca cmov pat pse36 mmx fxsr syscall mmxext 3dnowext 3dnow
bogomips : 2002.43
$ free
total used free shared buffers cached
Mem: 515616 495812 19804 0 6004 103160
-/+ buffers/cache: 386648 128968
Swap: 1052248 279544 772704
--
Jakub Narebski
Poland
ShadeHawk on #git
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