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Jason Evans 32896a902b Fix large allocation to search optimal size class heap. 
Fix arena_run_alloc_large_helper() to not convert size to usize when
searching for the first best fit via arena_run_first_best_fit().  This
allows the search to consider the optimal quantized size class, so that
e.g. allocating and deallocating 40 KiB in a tight loop can reuse the
same memory.

This regression was nominally caused by
5707d6f952 (Quantize szad trees by size
class.), but it did not commonly cause problems until
8a03cf039c (Implement cache index
randomization for large allocations.).  These regressions were first
released in 4.0.0.

This resolves #487.
2016-11-03 22:36:30 -07:00
bin Pass retain and exclude parameters to /pprof/symbol. 2016-01-29 19:59:06 -08:00
build-aux Use AC_CONFIG_AUX_DIR([build-aux]). 2015-11-12 11:23:39 -08:00
doc Update project URL. 2016-11-02 21:42:16 -07:00
include Fix chunk_alloc_cache() to support decommitted allocation. 2016-11-03 22:36:30 -07:00
msvc Only use --whole-archive with gcc. 2016-10-28 00:47:53 -07:00
src Fix large allocation to search optimal size class heap. 2016-11-03 22:36:30 -07:00
test Add os_unfair_lock support. 2016-11-02 19:35:12 -07:00
.appveyor.yml Add an AppVeyor config 2016-09-26 15:47:41 -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 Add MS Visual Studio 2015 support 2016-02-20 10:55:23 -08:00
.travis.yml Add Travis-CI configuration 2016-09-26 15:47:29 -07:00
autogen.sh Move repo contents in jemalloc/ to top level. 2011-03-31 20:36:17 -07:00
ChangeLog Update ChangeLog for 4.3.0. 2016-11-02 21:42:16 -07:00
config.stamp.in Move repo contents in jemalloc/ to top level. 2011-03-31 20:36:17 -07:00
configure.ac Fix sycall(2) configure test for Linux. 2016-11-02 19:51:23 -07:00
COPYING Update copyright dates for 2016. 2016-02-28 15:20:40 -08:00
coverage.sh Add test code coverage analysis. 2013-12-06 18:50:51 -08:00
INSTALL Add --with-version. 2016-03-14 20:19:11 -07:00
jemalloc.pc.in Update project URL. 2016-11-02 21:42:16 -07:00
Makefile.in Fix EXTRA_CFLAGS to not affect configuration. 2016-10-29 22:46:43 -07:00
README Update project URL. 2016-11-02 21:42:16 -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://jemalloc.net/