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Qi Wang fac706836f Add opt.lg_extent_max_active_fit 
When allocating from dirty extents (which we always prefer if available), large
active extents can get split even if the new allocation is much smaller, in
which case the introduced fragmentation causes high long term damage.  This new
option controls the threshold to reuse and split an existing active extent.  We
avoid using a large extent for much smaller sizes, in order to reduce
fragmentation.  In some workload, adding the threshold improves virtual memory
usage by >10x.
2017-11-16 15:32:02 -08:00
bin Filter out "void *newImpl" in prof output. 2017-08-08 12:28:29 -07:00
build-aux Update config.{guess,sub} from upstream. 2016-11-10 15:08:32 -08:00
doc Add opt.lg_extent_max_active_fit 2017-11-16 15:32:02 -08:00
include Add opt.lg_extent_max_active_fit 2017-11-16 15:32:02 -08:00
m4 jemalloc cpp new/delete bindings 2016-12-12 18:36:06 -08:00
msvc Fix MSVC 2015 project and add a VS 2017 solution 2017-10-16 10:26:54 -07:00
scripts Remove a redundant '--with-malloc-conf=tcache:false' from gen_run_tests.py 2017-07-31 15:36:40 -07:00
src Add opt.lg_extent_max_active_fit 2017-11-16 15:32:02 -08:00
test Add opt.lg_extent_max_active_fit 2017-11-16 15:32:02 -08:00
.appveyor.yml Do not build in parallel on AppVeyor. 2017-05-11 23:06:54 -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 Fix MSVC 2015 project and add a VS 2017 solution 2017-10-16 10:26:54 -07:00
.travis.yml Force Ubuntu "precise" for Travis CI builds. 2017-09-20 10:38:26 -07:00
autogen.sh Move repo contents in jemalloc/ to top level. 2011-03-31 20:36:17 -07:00
ChangeLog Fix a typo. 2017-07-02 21:05:23 -07:00
config.stamp.in Move repo contents in jemalloc/ to top level. 2011-03-31 20:36:17 -07:00
configure.ac Add configure-time detection for madvise(..., MADV_DO[NT]DUMP) 2017-10-16 15:35:49 -07:00
COPYING Update copyright dates. 2017-06-12 23:16:44 -07:00
INSTALL.md Add the --disable-thp option to support cross compiling. 2017-05-30 11:30:54 -07:00
jemalloc.pc.in Update project URL. 2016-09-12 11:56:24 -07:00
Makefile.in Remove external linkage for spin_adaptive 2017-08-08 10:30:21 -07:00
README Update project URL. 2016-09-12 11:56:24 -07:00
run_tests.sh Introduce scripts to run all possible tests 2017-01-30 17:51:57 -08:00

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 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://jemalloc.net/