malloc(3) vs. malloc(3x)

[Gordon Cross]

In article <1418 at leah.Albany.Edu> rds95 at leah.Albany.Edu (Robert Seals) writes:
>How much can a single malloc get? And why does Ultrix have 2 kinds of
>malloc, while 4.3-tahoe (the first one, I think) only has 1?

The difference between malloc(3C) and malloc (3X) is speed:  the latter version
runs on average about 9 times faster.  The algorithm used is optimized for
speed at the expense of memory efficiency.  If you are going to do LOTS of
mallocs, the 3X version is usually preferable.
-- 

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