46 lines
2.3 KiB
Text
46 lines
2.3 KiB
Text
ptmalloc is the original version of the malloc that was later included
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in GNU libc. Under some circumsntaces, notably with pthreads and
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excessive calls to realloc, it performs significantly better than
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FreeBSD malloc. This version is *not* GPL or LGPL:
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Copyright (c) 1999 Wolfram Gloger
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Permission to use, copy, modify, distribute, and sell this software
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and its documentation for any purpose is hereby granted without fee,
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provided that (i) the above copyright notices and this permission
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notice appear in all copies of the software and related
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documentation, and (ii) the name of Wolfram Gloger may not be used
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in any advertising or publicity relating to the software.
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THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND,
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EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
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WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
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IN NO EVENT SHALL WOLFRAM GLOGER BE LIABLE FOR ANY SPECIAL,
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INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, OR ANY
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DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
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WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY
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THEORY OF LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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PERFORMANCE OF THIS SOFTWARE.
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This is not the latest version: it's older than the one in GNU libc.
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There is a newer version, but it's still marked as "current snapshot".
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It's in /usr/ports/devel/ptmalloc-2/.
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See the web site for more details: WWW: http://www.malloc.de/en/
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This package comes with no documentation beyond a README, which isn't
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worth installing. It appears that the GNU libc man page malloc(3)
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applies, but it's not included here for copyright reasons. There's
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nothing unusual about it. In particular, the section TUNING in
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FreeBSD malloc(3) does not apply.
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This library uses the POSIX pthread_atfork() function which was not
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committed to -CURRENT until 10 December 2004. See PR bin/68841 for
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further details. To build it on older versions, first install this
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patch, which should be transparent.
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In addition to the library, the package contains a couple of test
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cases. Theoretically they could be run using the FreeBSD libraries,
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but they call the legacy memalign() function, which is not provided by
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FreeBSD. It may be of interest to fix this issue.
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