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Daniel Micay 4cfe55166e Add support for sized deallocation. 
This adds a new `sdallocx` function to the external API, allowing the
size to be passed by the caller.  It avoids some extra reads in the
thread cache fast path.  In the case where stats are enabled, this
avoids the work of calculating the size from the pointer.

An assertion validates the size that's passed in, so enabling debugging
will allow users of the API to debug cases where an incorrect size is
passed in.

The performance win for a contrived microbenchmark doing an allocation
and immediately freeing it is ~10%.  It may have a different impact on a
real workload.

Closes #28
2014-09-08 17:34:24 -07:00
bin Simplify backtracing. 2014-04-22 20:55:09 -07:00
doc Add support for sized deallocation. 2014-09-08 17:34:24 -07:00
include Add support for sized deallocation. 2014-09-08 17:34:24 -07:00
src Add support for sized deallocation. 2014-09-08 17:34:24 -07:00
test Add support for sized deallocation. 2014-09-08 17:34:24 -07:00
.autom4te.cfg Disable autom4te cache. 2014-09-02 17:49:29 -07:00
.gitattributes fix git handling of newlines on windows 2014-05-07 18:48:39 -04:00
.gitignore Move typedefs from jemalloc_protos.h.in to jemalloc_typedefs.h.in. 2014-09-07 19:55:03 -07:00
autogen.sh Move repo contents in jemalloc/ to top level. 2011-03-31 20:36:17 -07:00
ChangeLog Update ChangeLog for 3.6.0. 2014-03-31 09:23:10 -07:00
config.guess Update config.{guess,sub} to more recent versions, to add better support to OpenRISC/or1k (among others) 2014-07-29 23:15:26 +01:00
config.stamp.in Move repo contents in jemalloc/ to top level. 2011-03-31 20:36:17 -07:00
config.sub Update config.{guess,sub} to more recent versions, to add better support to OpenRISC/or1k (among others) 2014-07-29 23:15:26 +01:00
configure.ac Add support for sized deallocation. 2014-09-08 17:34:24 -07:00
COPYING Update copyrights. 2014-01-22 11:09:04 -08:00
coverage.sh Add test code coverage analysis. 2013-12-06 18:50:51 -08:00
INSTALL Whitespace cleanups. 2014-09-04 22:27:26 -07:00
install-sh Move repo contents in jemalloc/ to top level. 2011-03-31 20:36:17 -07:00
Makefile.in Add support for sized deallocation. 2014-09-08 17:34:24 -07:00
README Update README. 2013-10-20 19:38:19 -07:00

README 

jemalloc is a general purpose malloc(3) implementation that emphasizes
fragmentation avoidance and scalable concurrency support.  jemalloc first came
into use as the FreeBSD libc allocator in 2005, and since then it has found its
way into numerous applications that rely on its predictable behavior.  In 2010
jemalloc development efforts broadened to include developer support features
such as heap profiling, Valgrind integration, and extensive monitoring/tuning
hooks.  Modern jemalloc releases continue to be integrated back into FreeBSD,
and therefore versatility remains critical.  Ongoing development efforts trend
toward making jemalloc among the best allocators for a broad range of demanding
applications, and eliminating/mitigating weaknesses that have practical
repercussions for real world applications.

The COPYING file contains copyright and licensing information.

The INSTALL file contains information on how to configure, build, and install
jemalloc.

The ChangeLog file contains a brief summary of changes for each release.

URL: http://www.canonware.com/jemalloc/