This small CLI utility displays the maximum speed in kBytes per
second for reading, writing and copying in RAM. If will also do a
read test in ROM. MemSpeed checks the speed of your Chip-RAM, Fast-
RAM and ROM by applying a buffer of 128k. The speed test routine is 
a loop of 64 MOVE.L instructions running in supervisor mode with 
interrupts disabled, which will fit in all instruction caches from 
68020 on.

MemSpeed v1.1 is Freeware.


Here are some results I got by using MemSpeed on my 
A4000/040 (instruction cache was always enabled):

ScreenMode  DataCache ChipRAM r/w/c     FastRAM r/w/c       ROM r (MB/sec)

CyberGFX    on        4.6 / 4.6 / 2.3   11.3 /  6.0 / 4.0   11.3
            off       4.6 / 4.6 / 2.3   10.7 / 10.7 / 5.3   10.7

720x512x8   on        1.3 / 1.3 / 0.6   11.3 /  6.0 / 4.0   11.3
(DblPAL)    off       1.3 / 1.3 / 0.6   10.7 / 10.7 / 5.3   10.7

320x256x8   on        3.5 / 3.5 / 1.8   11.3 /  6.0 / 4.0   11.3
            off       3.5 / 3.5 / 1.8   10.7 / 10.7 / 5.3   10.7

320x256x4   on        4.3 / 4.3 / 2.2   11.3 /  6.0 / 4.0   11.3
            off       4.3 / 4.3 / 2.2   10.7 / 10.7 / 5.3   10.7

 PERMSSN    UID  GID    PACKED    SIZE  RATIO     CRC       STAMP          NAME
---------- ----------- ------- ------- ------ ---------- ------------ -------------
[generic]                  655     876  74.8% -lh5- 89e7 Feb 15  1996 memspeed
[generic]                  608    1320  46.1% -lh5- df63 Feb 15  1996 memspeed.readme
---------- ----------- ------- ------- ------ ---------- ------------ -------------
 Total         2 files    1263    2196  57.5%            Mar  7  1996