Date: Fri, 17 Mar 2006 09:00:28 +0000 (UTC) From: Jason Evans <jasone@FreeBSD.org> To: src-committers@FreeBSD.org, cvs-src@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/lib/libc/stdlib malloc.3 malloc.c Message-ID: <200603170900.k2H90Siw059900@repoman.freebsd.org>
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jasone 2006-03-17 09:00:28 UTC
FreeBSD src repository
Modified files:
lib/libc/stdlib malloc.3 malloc.c
Log:
Modify allocation policy, in order to avoid excessive fragmentation for
allocation patterns that involve a relatively even mixture of many
different size classes.
Reduce the chunk size from 16 MB to 2 MB. Since chunks are now carved up
using an address-ordered first best fit policy, VM map fragmentation is
much less likely, which makes smaller chunks not as much of a risk. This
reduces the virtual memory size of most applications.
Remove redzones, since program buffer overruns are no longer as likely to
corrupt malloc data structures.
Remove the C MALLOC_OPTIONS flag, and add H and S.
Revision Changes Path
1.67 +52 -50 src/lib/libc/stdlib/malloc.3
1.112 +1064 -2499 src/lib/libc/stdlib/malloc.c
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