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Posting-Version: version B 2.10.2 9/18/84; site down.FUN
Path: utzoo!watmath!clyde!burl!ulysses!allegra!princeton!down!honey
From: honey@down.FUN (code 101)
Newsgroups: net.sources.bugs
Subject: Re: Bugs (and fixes) in pathalias
Message-ID: <433@down.FUN>
Date: Mon, 28-Jan-85 14:07:05 EST
Article-I.D.: down.433
Posted: Mon Jan 28 14:07:05 1985
Date-Received: Tue, 29-Jan-85 07:12:19 EST
References: <328@desint.UUCP>
Organization: Princeton University, EECS
Lines: 16

Re (1), USG and index/rindex/strchr/strrchr:  if you define ATTSV in
config.h, def.h will define index and rindex for you.

Re (2), MYMALLOC commentary:  Geoff oversimplifies.  It's true that
myfree() is a no-op, but observe that mymalloc() uses a buffered sbrk()
scheme.  I did a lot of profiling, against every version of malloc I
could find and discovered that mymalloc() wins on time *and* space.
It's easy to see why it wins on time.  For space, I found that almost
all of the free()-ing comes after almost all of the malloc()-ing, thus
very little space is re-used, so you never win back the space
overhead.

Re (3), core dump if you don't use mymalloc():  thank you, I'll look at
this right away.

	Peter