crypto/des/options.txt

   1 Note that the UNROLL option makes the 'inner' des loop unroll all 16 rounds
   2 instead of the default 4.
   3 RISC1 and RISC2 are 2 alternatives for the inner loop and
   4 PTR means to use pointers arithmatic instead of arrays.
   5
   6 FreeBSD - Pentium Pro 200mhz - gcc 2.7.2.2 - assember           577,000 4620k/s
   7 IRIX 6.2 - R10000 195mhz - cc (-O3 -n32) - UNROLL RISC2 PTR     496,000 3968k/s
   8 solaris 2.5.1 usparc 167mhz?? - SC4.0 - UNROLL RISC1 PTR [1]    459,400 3672k/s
   9 FreeBSD - Pentium Pro 200mhz - gcc 2.7.2.2 - UNROLL RISC1       433,000 3468k/s
  10 solaris 2.5.1 usparc 167mhz?? - gcc 2.7.2 - UNROLL              380,000 3041k/s
  11 linux - pentium 100mhz - gcc 2.7.0 - assember                   281,000 2250k/s
  12 NT 4.0 - pentium 100mhz - VC 4.2 - assember                     281,000 2250k/s
  13 AIX 4.1? - PPC604 100mhz - cc - UNROLL                          275,000 2200k/s
  14 IRIX 5.3 - R4400 200mhz - gcc 2.6.3 - UNROLL RISC2 PTR          235,300 1882k/s
  15 IRIX 5.3 - R4400 200mhz - cc - UNROLL RISC2 PTR                 233,700 1869k/s
  16 NT 4.0 - pentium 100mhz - VC 4.2 - UNROLL RISC1 PTR             191,000 1528k/s
  17 DEC Alpha 165mhz??  - cc - RISC2 PTR [2]                        181,000 1448k/s
  18 linux - pentium 100mhz - gcc 2.7.0 - UNROLL RISC1 PTR           158,500 1268k/s
  19 HPUX 10 - 9000/887 - cc - UNROLL [3]                            148,000 1190k/s
  20 solaris 2.5.1 - sparc 10 50mhz - gcc 2.7.2 - UNROLL             123,600  989k/s
  21 IRIX 5.3 - R4000 100mhz - cc - UNROLL RISC2 PTR                 101,000  808k/s
  22 DGUX - 88100 50mhz(?) - gcc 2.6.3 - UNROLL                       81,000  648k/s
  23 solaris 2.4 486 50mhz - gcc 2.6.3 - assember                     65,000  522k/s
  24 HPUX 10 - 9000/887 - k&r cc (default compiler) - UNROLL PTR      76,000  608k/s
  25 solaris 2.4 486 50mhz - gcc 2.6.3 - UNROLL RISC2                 43,500  344k/s
  26 AIX - old slow one :-) - cc -                                    39,000  312k/s
  27
  28 Notes.
  29 [1] For the ultra sparc, SunC 4.0
  30     cc -xtarget=ultra -xarch=v8plus -Xa -xO5, running 'des_opts'
  31     gives a speed of 344,000 des/s while 'speed' gives 459,000 des/s.
  32     I'll record the higher since it is coming from the library but it
  33     is all rather weird.
  34 [2] Similar to the ultra sparc ([1]), 181,000 for 'des_opts' vs 175,000.
  35 [3] I was unable to get access to this machine when it was not heavily loaded.
  36     As such, my timing program was never able to get more that %30 of the CPU.
  37     This would cause the program to give much lower speed numbers because
  38     it would be 'fighting' to stay in the cache with the other CPU burning
  39     processes.