🚀 go-pugleaf

In article <jgkDFv094.JKJ@netcom.com>, Joe Keane <jgk@netcom.com> wrote:
[Using modulous to reduce a hash function to an array index is stupid.]

Yep. Using a prime number modulous will mask (pun intended) a bad hash
function somewhat though.

> Given how slow remainder is, i like the RISC approach of calling a function.
> I *like* the SPARC because the remainder function shows up in profiling, so
> you know who's calling it and how much time you're wasting.

Pixie on MIPS systems will pinpoint hotspot *instructions* when used
properly. Hell, on a good day with a cache simulator, one could nail down
cache miss hotspots using the MIPS tools. (And if you thing modulous is
slow, wait 'til you see those cache misses :-)) I'm not sure whether the
MIPS profiling stuff has gotten better or just rotted over the years. In
the 1990 timeframe, it was state of the art.

-Z-