mirror of
https://github.com/oxen-io/session-android.git
synced 2024-12-19 14:37:32 +00:00
32 lines
1.1 KiB
C++
32 lines
1.1 KiB
C++
|
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 believe 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
|
||
|
|
|