[self-interest] embedding based prototype languages
steve at dekorte.com
Thu Nov 7 21:49:14 UTC 2002
On Thursday, November 7, 2002, at 12:16 AM, James McCartney wrote:
> On Wednesday, November 6, 2002, at 10:24 PM, Steve Dekorte wrote:
>> I've found it doesn't take much space as long as the number of slots
>> low(which is typical when using differential inheritance).
> For what I'd like to do, which is flattening the parents, the number of
> slots would be large for the parent.
That's true. Btw, I ran some tests today and found the load on my
perfect hashes is typically around .8 for less than 20 slots, and above
.5 for between 20 and 50.
Also, I was thinking about the masking idea. Maybe there's some short
combination of binary operations that could get the variability needed
for perfect hashing while being faster than a %. Some tests on my G4
showed % to be about 1/3 the speed of a &. I poked around on the net
but the ones I found were more expensive than %. Any ideas?
Seems like the hw folks should have implemented a mod instruction by
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