A/UX performance

Sat Apr 2 05:22:41 AEST 1988

In article <1975 at pasteur.Berkeley.Edu> nfong at cory.Berkeley.EDU (Norman Fong) writes:
>Can someone comment on A/UX's performance?  Is it comparable to say a
>Sun 3/50's performance?  Does Apple's current implementation utilize
>most of a disk's bandwidth or will future scsi drivers improve performance?
>Also does A/UX have 4.3BSD enhancements to the file system? (cylinder grps etc)
>
>nfong at cory.Berkeley.EDU.UUCP

I posted this a few days ago, but no one seems to have gotten it at
other sites, so here it comes again. If this appears twice at some
sites, I apologize, it did not seem to get out.

This is the output of tbl and troff, edited to take out the control
sequences. You may have to print it to make it clear. At this time I
can't supply the original benchmarks.

       Test                         Vax          UNISYS386+387   Sun3/280S      Mac II
       ______________________________________________________________________________________
       test conditions
         cpu/speed               |  11/780    |   80386:16    |  68020:25    |   68020:16
         fp chip                 |     FPU    |   80387:16    |  68881/25    |   68881:16
         memory (mb)             |       8    |          1    |        16    |          5
         disk type               |     dec    |       ---     |      ---     |  quantum80
         rated seek (ms)         |     <20    |         20    |       <20    |         28
         O/S                     |    Ultrix  |  Xenix/386    |   SunOS 3    |      A/UX

       ______________________________________________________________________________________
       math speed (k ops/sec)
        short                    |     308.4  |       1193.6  |      1114.5  |        891.9
        long                     |     503.1  |       1227.8  |      1787.9  |        905.6
        float                    |     128.0  |        341.1  |       181.8  |        145.7
        double                   |     181.5  |        279.1  |       180.2  |        138.4
       ______________________________________________________________________________________
       Compare and branch (k ops/sec)
        integer                  |     293.0  |        827.8  |      1666.7  |        646.6
        float                    |     115.8  |        144.1  |        74.3  |        116.3
       ______________________________________________________________________________________
       Transcendental functions (k ops/sec)
        circle points            |     537    |       1295    |      4615    |       1786
        trig functions           |    2550    |       4250    |      7650    |       7650
       ______________________________________________________________________________________
       Standard benchmarks
        Dhrystone                |    1453    |       5319    |      7444    |       3226
        Dhampstone               |    1430    |       6207    |      8640    |       3661
       ______________________________________________________________________________________
       bit ops. (vals/sec)
        Turing machine           |      48.0  |        160.1  |       212.3  |        113.6
        BTG                      |   10084    |      68966    |    114286    |      54545
        GTB                      |    2652    |      14085    |     27273    |      13953
        Sieve                    |     801    |       3621    |      3650    |       2122
       ______________________________________________________________________________________
       Sort (sec)
        integer                  |       1.073|          0.413|         0.243|          0.510
        float                    |       1.117|          0.760|         0.843|          1.567
       ______________________________________________________________________________________
       disk performance (kb)
        write                    |      20.4  |        117.0  |       687.7  |         41.9
        read                     |      22.4  |         54.7  |       613.2  |         45.2
        access (ms)              |     123.5  |          6.6  |        34.9  |         17.1
       ______________________________________________________________________________________
       System performance (k/sec)
         xfer via pipes          |     269.5  |       1066.7  |       614.4  |        558.5
         funct call              |      46.9  |        277.8  |       500.0  |        200.0
         system call             |       4.7  |         11.3  |        17.4  |          7.8
       ______________________________________________________________________________________
       Compilation speed
        20 small
         real                    |     479.5  |        277.2  |        99.4  |        548.8
         CPU                     |     144.5  |        100.9  |        45.0  |        142.6
        3 large                  |            |               |              |
         real                    |     646.8  |         90.6  |        31.4  |        170.2
         CPU                     |      76.3  |         39.7  |        21.5  |         93.4
-- 
	bill davidsen		(wedu at ge-crd.arpa)
  {uunet | philabs | seismo}!steinmetz!crdos1!davidsen
"Stupidity, like virtue, is its own reward" -me