Hi all,

I've just compiled the tscp benchmark under VMS, I was
curious to compare the results of gcc/NetBSD with CC/VMS
on the same hardware.
(wow, it was the first time I did something serious with VMS)

Results on a VAXserver 4000-200 (KA660):

NetBSD 1.5 (gcc -O2)
Nodes: 550822
Best time: 533230 ms
Nodes per second: 1032 (7.0 MIPS)

VMS 6.2 (CC and LINK)
Nodes: 550822
Best time: 503000 ms [+- 1000 ms]
Nodes per second: 1095 (7.4 MIPS)

The winner is VMS, but the difference is
not so big (only 6%).
I tried several optimizations with no luck.
(these CISC thingies are quite insensible to
optimizations compared to RISC. I have seen
a 50% performance boost on tscp with a Sparc SS4,
just by fiddling with gcc options).

What do you think ?

Pierre-Michel