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Kevin Svetlitski 5a858c64d6 Reduce the memory overhead of sampled small allocations
Previously, small allocations which were sampled as part of heap
profiling were rounded up to `SC_LARGE_MINCLASS`. This additional memory
usage becomes problematic when the page size is increased, as noted in #2358.

Small allocations are now rounded up to the nearest multiple of `PAGE`
instead, reducing the memory overhead by a factor of 4 in the most
extreme cases.
2023-07-03 16:19:06 -07:00
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doc_internal update PROFILING_INTERNALS.md 2022-10-03 10:48:29 -07:00
include Reduce the memory overhead of sampled small allocations 2023-07-03 16:19:06 -07:00
m4 Support C++17 over-aligned allocation 2019-11-22 10:14:16 -08:00
msvc [MSVC] support for Visual Studio 2019 and 2022 2023-02-21 13:39:25 -08:00
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src Reduce the memory overhead of sampled small allocations 2023-07-03 16:19:06 -07:00
test Address compiler warnings in the unit tests 2023-07-03 16:06:35 -07:00
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autogen.sh Move repo contents in jemalloc/ to top level. 2011-03-31 20:36:17 -07:00
ChangeLog Update ChangeLog for 5.3.0. 2022-05-06 11:24:21 -07:00
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COPYING Update copyright dates. 2019-01-25 13:25:20 -08:00
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jemalloc.pc.in switch to https 2023-03-09 11:44:02 -08:00
Makefile.in Makefile.in: link with g++ when cxx enabled 2023-02-21 13:26:58 -08:00
README switch to https 2023-03-09 11:44:02 -08:00
run_tests.sh Introduce scripts to run all possible tests 2017-01-30 17:51:57 -08:00
TUNING.md switch to https 2023-03-09 11:44:02 -08:00

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: https://jemalloc.net/