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Diffstat (limited to 'crypto/des/times/usparc.cc')
| -rw-r--r-- | crypto/des/times/usparc.cc | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/crypto/des/times/usparc.cc b/crypto/des/times/usparc.cc new file mode 100644 index 0000000000..f6ec8e8831 --- /dev/null +++ b/crypto/des/times/usparc.cc @@ -0,0 +1,31 @@ +solaris 2.5.1 usparc 167mhz?? - SC4.0 cc -fast -Xa -xO5 + +For the ultra sparc, SunC 4.0 cc -fast -Xa -xO5, running 'des_opts' +gives a speed of 475,000 des/s while 'speed' gives 417,000 des/s. +I belive the difference is tied up in optimisation that the compiler +is able to perform when the code is 'inlined'. For 'speed', the DES +routines are being linked from a library. I'll record the higher +speed since if performance is everything, you can always inline +'des_enc.c'. + +[ 16-Jan-06 - I've been playing with the + '-xtarget=ultra -xarch=v8plus -Xa -xO5 -Xa' + and while it makes the des_opts numbers much slower, it makes the + actual 'speed' numbers look better which is a realistic version of + using the libraries. ] + +options des ecb/s +16 r1 p 475516.90 100.0% +16 r2 p 439388.10 92.4% +16 c i 427001.40 89.8% +16 c p 419516.50 88.2% + 4 r2 p 409491.70 86.1% + 4 r1 p 404266.90 85.0% + 4 c p 398121.00 83.7% + 4 c i 370588.40 77.9% + 4 r1 i 362742.20 76.3% +16 r2 i 331275.50 69.7% +16 r1 i 324730.60 68.3% + 4 r2 i 63535.10 13.4% <-- very very weird, must be cache problems. +-DDES_UNROLL -DDES_RISC1 -DDES_PTR + |