[comp.sys.amiga.tech] 2620, how fast is it REALLY????

promac@iisat.UUCP (Promac Systems) (06/02/89)

Being the prowd owner of a 2620 board, I have been wondering just how fast 
is it compared to the othe 68020 boards. Has anyone done any comparsions
of these boards(I do not trust ads as a general rule), by the way how did
lattice get 5.02 to do over 1600 drystones a second anyways) that they would
liketo share.
Later
Barry Comer
promac@iisat.UUCP

dwi@manta.NOSC.MIL (Steve Stamper) (06/02/89)

I have gotten the following using Lattice C 5.02 and Drystone benchmark

Compiling lc -v -w -cf -L -O -m0 -rr drystone using Amiga 2000 /68000 w/
expansion RAM : 
Registers - 1923 drystones/sec
No Regs - 1666 drystones/sec
I did a changetaskpri 100 before I ran it and had to modify the linker file
to also include lcs.lib since time() don't work with only lcsr.lib

Using the same compilation but -m2 and the A2620 board enabled I get

Registers - 5000 drystones/sec
No regs - 4166 drystones/sec

Some other benchmarks I got are (with A2620 enabled)

fib 52 secs
qsort 11 secs
savage (25000) 4 secs
100 sieves 5 secs
Whetstones - 769231 Whetstones/sec

-Roger Uzun