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Jason Evans 0c5dd03e88 Move small run metadata into the arena chunk header. 
Move small run metadata into the arena chunk header, with multiple
expected benefits:
- Lower run fragmentation due to reduced run sizes; runs are more likely
  to completely drain when there are fewer total regions.
- Improved cache behavior.  Prior to this change, run headers were
  always page-aligned, which put extra pressure on some CPU cache sets.
  The degree to which this was a problem was hardware dependent, but it
  likely hurt some even for the most advanced modern hardware.
- Buffer overruns/underruns are less likely to corrupt allocator
  metadata.
- Size classes between 4 KiB and 16 KiB become reasonable to support
  without any special handling, and the runs are small enough that dirty
  unused pages aren't a significant concern.
2014-09-29 01:31:39 -07:00
bin Add sdallocx() to list of functions to prune in pprof. 2014-09-10 08:49:29 -07:00
doc Add support for sized deallocation. 2014-09-08 17:34:24 -07:00
include Move small run metadata into the arena chunk header. 2014-09-29 01:31:39 -07:00
src Move small run metadata into the arena chunk header. 2014-09-29 01:31:39 -07:00
test Implement compile-time bitmap size computation. 2014-09-28 14:43:11 -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 Ignore jemalloc.pc . 2014-09-21 21:40:38 -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 Fixed iOS build after OR1 changes 2014-09-12 07:24:28 +03:00
configure.ac Generate a pkg-config file 2014-09-19 22:27:35 +01:00
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 Add instructions for installing from non-packaged sources. 2014-09-23 09:21:49 -07:00
install-sh Move repo contents in jemalloc/ to top level. 2011-03-31 20:36:17 -07:00
jemalloc.pc.in Generate a pkg-config file 2014-09-19 22:27:35 +01:00
Makefile.in Generate a pkg-config file 2014-09-19 22:27:35 +01:00
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/