Date: Fri, 24 Mar 2006 00:28:09 +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.c Message-ID: <200603240028.k2O0S90S023707@repoman.freebsd.org>
next in thread | raw e-mail | index | archive | help
jasone 2006-03-24 00:28:08 UTC
FreeBSD src repository
Modified files:
lib/libc/stdlib malloc.c
Log:
Add USE_BRK-specific code in malloc_init_hard() to allow the first
internally used chunk to start at the beginning of the heap, rather
than at a chunk-aligned address. This reduces mapped memory somewhat
for 32-bit architectures.
Add the arena_run_link_t type and use it wherever a run object is only
used as a ring 'header'. This saves approximately 40 kB of memory per
arena.
Remove an obsolete (no longer used) code path from base_alloc(), which
supported the internal allocation of objects larger than the chunk
size.
Enhance chunk_dealloc() to cache chunk addresses for all deallocated
chunks. This has no impact for most programs, but has the potential
to reduce VM map fragmentation for programs that use huge
allocations.
Revision Changes Path
1.115 +110 -65 src/lib/libc/stdlib/malloc.c
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?200603240028.k2O0S90S023707>