George Spelvin venit, vidit, dixit 31.07.2009 12:46: > 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. > > I haven't packaged this nicely, but it's not that complicated. > - Download Andy's original code from > http://www.openssl.org/~appro/cryptogams/cryptogams-0.tar.gz > - Unpack and cd to the cryptogams-0/x86 directory > - "patch < this_email" to create "sha1test.c", "sha1-586.h", "Makefile", > and "sha1-x86.pl". > - "make" > - Run ./586test (before) and ./x86test (after) and note the timings. > > Thank you! Best of 6 runs: ./586test Result: a9993e36 4706816a ba3e2571 7850c26c 9cd0d89d Expected:a9993e36 4706816a ba3e2571 7850c26c 9cd0d89d 500000000 bytes: 1.642336 s ./x86test Result: a9993e36 4706816a ba3e2571 7850c26c 9cd0d89d Expected:a9993e36 4706816a ba3e2571 7850c26c 9cd0d89d 500000000 bytes: 1.532153 s System: uname -a Linux localhost.localdomain 2.6.29.6-213.fc11.x86_64 #1 SMP Tue Jul 7 21:02:57 EDT 2009 x86_64 x86_64 x86_64 GNU/Linux cat /proc/cpuinfo processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 15 model name : Intel(R) Core(TM)2 Duo CPU T7500 @ 2.20GHz stepping : 11 cpu MHz : 800.000 cache size : 4096 KB physical id : 0 siblings : 2 core id : 0 cpu cores : 2 apicid : 0 initial apicid : 0 fpu : yes fpu_exception : yes cpuid level : 10 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx lm constant_tsc arch_perfmon pebs bts rep_good pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm lahf_lm ida tpr_shadow vnmi flexpriority bogomips : 4389.20 clflush size : 64 cache_alignment : 64 address sizes : 36 bits physical, 48 bits virtual power management: processor : 1 vendor_id : GenuineIntel cpu family : 6 model : 15 model name : Intel(R) Core(TM)2 Duo CPU T7500 @ 2.20GHz stepping : 11 cpu MHz : 800.000 cache size : 4096 KB physical id : 0 siblings : 2 core id : 1 cpu cores : 2 apicid : 1 initial apicid : 1 fpu : yes fpu_exception : yes cpuid level : 10 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx lm constant_tsc arch_perfmon pebs bts rep_good pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm lahf_lm ida tpr_shadow vnmi flexpriority bogomips : 4388.78 clflush size : 64 cache_alignment : 64 address sizes : 36 bits physical, 48 bits virtual power management: -- To unsubscribe from this list: send the line "unsubscribe git" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html