davidsen@steinmetz.ge.com (William E. Davidsen Jr) (08/31/88)
I ran into an interesting problem the other day. I compiled microemacs
on an old (2.1.3) system, and then linked it with the malloc library
(-lmalloc). The new executable cut the startup time to about 30% of the
original. Then I decided to try the same thing with MUSH.
I keep mush on a 386 machine and cross compile, so I went there and
started the compile. When the link started there was no large model
malloc library. The other models (Slibmalloc, etc) are there. The new
6.3 version seems to run faster than the 6.2 which was linked without
-lmalloc.
Question: is this library just "left out," or is the malloc use by
default in 2.2.2 286 compiles, or what? Having to run on an underpowered
box at work, I try to do anything I can to make it faster.
I would strongly advise using the malloc library for things that play
with memory a lot, as it seems to help both the real time and the system
CPU time, although the real time goes down a LOT more than the system
time, so it's not just saving the systems calls.
--
bill davidsen (wedu@ge-crd.arpa)
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"Stupidity, like virtue, is its own reward" -me