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* Update and rename INSTALL to INSTALL.mdArkady Shapkin2017-05-121-356/+0
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* Add --with-version=VERSION .Jason Evans2017-05-031-3/+14
| | | | | | | This simplifies configuration when embedding a jemalloc release into another project's git repository. This resolves #811.
* Replace --disable-munmap with opt.munmap.Jason Evans2017-04-251-9/+0
| | | | | | | | | Control use of munmap(2) via a run-time option rather than a compile-time option (with the same per platform default). The old behavior of --disable-munmap can be achieved with --with-malloc-conf=munmap:false. This partially resolves #580.
* Remove --enable-code-coverage.Jason Evans2017-04-241-13/+0
| | | | | | | This option hasn't been particularly useful since the original pre-3.0.0 push to broaden test coverage. This partially resolves #580.
* Remove --disable-cc-silence.Jason Evans2017-04-241-5/+0
| | | | | | | The explicit compiler warning suppression controlled by this option is universally desirable, so remove the ability to disable suppression. This partially resolves #580.
* Remove --with-lg-tiny-min.Jason Evans2017-04-241-29/+8
| | | | | | This option isn't useful in practice. This partially resolves #580.
* Remove --with-lg-size-class-group.Jason Evans2017-04-241-31/+1
| | | | | | | | Four size classes per size doubling has proven to be a universally good choice for the entire 4.x release series, so there's little point to preserving this configurability. This partially resolves #580.
* Remove --enable-ivsalloc.Jason Evans2017-04-211-7/+0
| | | | | | | | | | | | Continue to use ivsalloc() when --enable-debug is specified (and add assertions to guard against 0 size), but stop providing a documented explicit semantics-changing band-aid to dodge undefined behavior in sallocx() and malloc_usable_size(). ivsalloc() remains compiled in, unlike when #211 restored --enable-ivsalloc, and if JEMALLOC_FORCE_IVSALLOC is defined during compilation, sallocx() and malloc_usable_size() will still use ivsalloc(). This partially resolves #580.
* Remove --disable-tls.Jason Evans2017-04-211-5/+0
| | | | | | | This option is no longer useful, because TLS is correctly configured automatically on all supported platforms. This partially resolves #580.
* Remove --disable-tcache.Jason Evans2017-04-211-5/+0
| | | | | | | | | | | Simplify configuration by removing the --disable-tcache option, but replace the testing for that configuration with --with-malloc-conf=tcache:false. Fix the thread.arena and thread.tcache.flush mallctls to work correctly if tcache is disabled. This partially resolves #580.
* Support --with-lg-page values larger than system page size.Jason Evans2017-04-191-3/+6
| | | | | | | | | All mappings continue to be PAGE-aligned, even if the system page size is smaller. This change is primarily intended to provide a mechanism for supporting multiple page sizes with the same binary; smaller page sizes work better in conjunction with jemalloc's design. This resolves #467.
* Only disable munmap(2) by default on 64-bit Linux.Jason Evans2017-04-171-3/+5
| | | | | | | This reduces the likelihood of address space exhaustion on 32-bit systems. This resolves #350.
* Add huge page configuration and pages_[no}huge().Jason Evans2016-12-271-0/+5
| | | | | | | | Add the --with-lg-hugepage configure option, but automatically configure LG_HUGEPAGE even if it isn't specified. Add the pages_[no]huge() functions, which toggle huge page state via madvise(..., MADV_[NO]HUGEPAGE) calls.
* Restructure *CFLAGS/*CXXFLAGS configuration.Jason Evans2016-12-161-9/+10
| | | | | | | | | | | | | Convert CFLAGS/CXXFLAGS to be concatenations: CFLAGS := CONFIGURE_CFLAGS SPECIFIED_CFLAGS EXTRA_CFLAGS CXXFLAGS := CONFIGURE_CXXFLAGS SPECIFIED_CXXFLAGS EXTRA_CXXFLAGS This ordering makes it possible to override the flags set by the configure script both during and after configuration, with CFLAGS/CXXFLAGS and EXTRA_CFLAGS/EXTRA_CXXFLAGS, respectively. This resolves #504.
* jemalloc cpp new/delete bindingsDave Watson2016-12-131-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Adds cpp bindings for jemalloc, along with necessary autoconf settings. This is mostly to add sized deallocation support, which can't be added from C directly. Sized deallocation is ~10% microbench improvement. * Import ax_cxx_compile_stdcxx.m4 from the autoconf repo, seems like the easiest way to get c++14 detection. * Adds various other changes, like CXXFLAGS, to configure.ac. * Adds new rules to Makefile.in for src/jemalloc-cpp.cpp, and a basic unittest. * Both new and delete are overridden, to ensure jemalloc is used for both. * TODO future enhancement of avoiding extra PLT thunks for new and delete - sdallocx and malloc are publicly exported jemalloc symbols, using an alias would link them directly. Unfortunately, was having trouble getting it to play nice with jemalloc's namespace support. Testing: Tested gcc 4.8, gcc 5, gcc 5.2, clang 4.0. Only gcc >= 5 has sized deallocation support, verified that the rest build correctly. Tested mac osx and Centos. Tested --with-jemalloc-prefix and --without-export. This resolves #202.
* Add --disable-syscall.Jason Evans2016-12-041-0/+5
| | | | This resolves #517.
* Update configure cache file example.Jason Evans2016-11-301-12/+6
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* Document how to use --cache configure option.Jason Evans2016-11-161-0/+15
| | | | This resolves #494.
* Remove all vestiges of chunks.Jason Evans2016-10-121-3/+3
| | | | | | | | Remove mallctls: - opt.lg_chunk - stats.cactive This resolves #464.
* Better document --enable-ivsalloc.Jason Evans2016-06-061-3/+4
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* Remove redzone support.Jason Evans2016-05-131-3/+2
| | | | This resolves #369.
* Remove quarantine support.Jason Evans2016-05-131-3/+3
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* Remove Valgrind support.Jason Evans2016-05-131-3/+0
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* Add --with-version.Jason Evans2016-03-151-0/+4
| | | | | | Also avoid deleting the VERSION file while trying to (re)generate it. This resolves #305.
* Add --with-malloc-conf.Jason Evans2016-02-201-0/+8
| | | | | Add --with-malloc-conf, which makes it possible to embed a default options string during configuration.
* Stop forcing --enable-munmap on MinGW.Jason Evans2015-08-121-4/+1
| | | | | This is no longer necessary because of the more general chunk merge/split approach to dealing with map coalescing.
* Implement support for non-coalescing maps on MinGW.Jason Evans2015-07-251-1/+4
| | | | | | | | - Do not reallocate huge objects in place if the number of backing chunks would change. - Do not cache multi-chunk mappings. This resolves #213.
* Implement cache index randomization for large allocations.Jason Evans2015-05-061-0/+9
| | | | | | | | | | | | | | | | | | | | Extract szad size quantization into {extent,run}_quantize(), and . quantize szad run sizes to the union of valid small region run sizes and large run sizes. Refactor iteration in arena_run_first_fit() to use run_quantize{,_first,_next(), and add support for padded large runs. For large allocations that have no specified alignment constraints, compute a pseudo-random offset from the beginning of the first backing page that is a multiple of the cache line size. Under typical configurations with 4-KiB pages and 64-byte cache lines this results in a uniform distribution among 64 page boundary offsets. Add the --disable-cache-oblivious option, primarily intended for performance testing. This resolves #13.
* Restore --enable-ivsalloc.Jason Evans2015-03-191-0/+6
| | | | | | | | | However, unlike before it was removed do not force --enable-ivsalloc when Darwin zone allocator integration is enabled, since the zone allocator code uses ivsalloc() regardless of whether malloc_usable_size() and sallocx() do. This resolves #211.
* Move centralized chunk management into arenas.Jason Evans2015-02-121-6/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Migrate all centralized data structures related to huge allocations and recyclable chunks into arena_t, so that each arena can manage huge allocations and recyclable virtual memory completely independently of other arenas. Add chunk node caching to arenas, in order to avoid contention on the base allocator. Use chunks_rtree to look up huge allocations rather than a red-black tree. Maintain a per arena unsorted list of huge allocations (which will be needed to enumerate huge allocations during arena reset). Remove the --enable-ivsalloc option, make ivsalloc() always available, and use it for size queries if --enable-debug is enabled. The only practical implications to this removal are that 1) ivsalloc() is now always available during live debugging (and the underlying radix tree is available during core-based debugging), and 2) size query validation can no longer be enabled independent of --enable-debug. Remove the stats.chunks.{current,total,high} mallctls, and replace their underlying statistics with simpler atomically updated counters used exclusively for gdump triggering. These statistics are no longer very useful because each arena manages chunks independently, and per arena statistics provide similar information. Simplify chunk synchronization code, now that base chunk allocation cannot cause recursive lock acquisition.
* Fix line wrapping.Jason Evans2014-10-151-10/+10
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* Add --with-lg-tiny-min, generalize --with-lg-quantum.Jason Evans2014-10-111-6/+26
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* Add configure options.Jason Evans2014-10-101-0/+67
| | | | | | | | | | | | Add: --with-lg-page --with-lg-page-sizes --with-lg-size-class-group --with-lg-quantum Get rid of STATIC_PAGE_SHIFT, in favor of directly setting LG_PAGE. Fix various edge conditions exposed by the configure options.
* Add instructions for installing from non-packaged sources.Jason Evans2014-09-231-2/+15
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* Whitespace cleanups.Jason Evans2014-09-051-3/+3
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* Refactor huge allocation to be managed by arenas.Jason Evans2014-05-161-6/+0
| | | | | | | | | | | | | | | | | | | | Refactor huge allocation to be managed by arenas (though the global red-black tree of huge allocations remains for lookup during deallocation). This is the logical conclusion of recent changes that 1) made per arena dss precedence apply to huge allocation, and 2) made it possible to replace the per arena chunk allocation/deallocation functions. Remove the top level huge stats, and replace them with per arena huge stats. Normalize function names and types to *dalloc* (some were *dealloc*). Remove the --enable-mremap option. As jemalloc currently operates, this is a performace regression for some applications, but planned work to logarithmically space huge size classes should provide similar amortized performance. The motivation for this change was that mremap-based huge reallocation forced leaky abstractions that prevented refactoring.
* Make dss non-optional, and fix an "arena.<i>.dss" mallctl bug.Jason Evans2014-04-151-4/+0
| | | | | | | Make dss non-optional on all platforms which support sbrk(2). Fix the "arena.<i>.dss" mallctl to return an error if "primary" or "secondary" precedence is specified, but sbrk(2) is not supported.
* Reverse the cc-silence default.Jason Evans2014-04-151-4/+4
| | | | | Replace --enable-cc-silence with --disable-cc-silence, so that by default people won't see spurious warnings when building jemalloc.
* Remove the *allocm() API, which is superceded by the *allocx() API.Jason Evans2014-04-151-3/+0
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* Add test code coverage analysis.Jason Evans2013-12-071-0/+13
| | | | Add test code coverage analysis based on gcov.
* Refactor to support more varied testing.Jason Evans2013-12-041-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Refactor the test harness to support three types of tests: - unit: White box unit tests. These tests have full access to all internal jemalloc library symbols. Though in actuality all symbols are prefixed by jet_, macro-based name mangling abstracts this away from test code. - integration: Black box integration tests. These tests link with the installable shared jemalloc library, and with the exception of some utility code and configure-generated macro definitions, they have no access to jemalloc internals. - stress: Black box stress tests. These tests link with the installable shared jemalloc library, as well as with an internal allocator with symbols prefixed by jet_ (same as for unit tests) that can be used to allocate data structures that are internal to the test code. Move existing tests into test/{unit,integration}/ as appropriate. Split out internal parts of jemalloc_defs.h.in and put them in jemalloc_internal_defs.h.in. This reduces internals exposure to applications that #include <jemalloc/jemalloc.h>. Refactor jemalloc.h header generation so that a single header file results, and the prototypes can be used to generate jet_ prototypes for tests. Split jemalloc.h.in into multiple parts (jemalloc_defs.h.in, jemalloc_macros.h.in, jemalloc_protos.h.in, jemalloc_mangle.h.in) and use a shell script to generate a unified jemalloc.h at configure time. Change the default private namespace prefix from "" to "je_". Add missing private namespace mangling. Remove hard-coded private_namespace.h. Instead generate it and private_unnamespace.h from private_symbols.txt. Use similar logic for public symbols, which aids in name mangling for jet_ symbols. Add test_warn() and test_fail(). Replace existing exit(1) calls with test_fail() calls.
* Allow to enable ivsalloc independentlyMike Hommey2012-12-231-0/+6
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* Allow to disable the zone allocator on DarwinMike Hommey2012-12-231-0/+4
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* Allow to build without exporting symbolsMike Hommey2012-11-251-0/+5
| | | | | | When statically linking jemalloc, it may be beneficial not to export its symbols if it makes sense, which allows the compiler and the linker to do some further optimizations.
* Add the --enable-mremap option.Jason Evans2012-05-091-0/+6
| | | | | | Add the --enable-mremap option, and disable the use of mremap(2) by default, for the same reason that freeing chunks via munmap(2) is disabled by default on Linux: semi-permanent VM map fragmentation.
* Clean up documentation and formatting.Jason Evans2012-04-231-5/+1
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* Add the --disable-munmap option.Jason Evans2012-04-171-0/+7
| | | | | | Add the --disable-munmap option, remove the configure test that attempted to detect the VM allocation quirk known to exist on Linux x86[_64], and make --disable-munmap implicit on Linux.
* Implement Valgrind support, redzones, and quarantine.Jason Evans2012-04-111-2/+6
| | | | | | | | | | | | | Implement Valgrind support, as well as the redzone and quarantine features, which help Valgrind detect memory errors. Redzones are only implemented for small objects because the changes necessary to support redzones around large and huge objects are complicated by in-place reallocation, to the point that it isn't clear that the maintenance burden is worth the incremental improvement to Valgrind support. Merge arena_salloc() and arena_salloc_demote(). Refactor i[v]salloc() to expose the 'demote' option.
* Add utrace(2)-based tracing (--enable-utrace).Jason Evans2012-04-051-0/+4
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* Add the --disable-experimental option.Jason Evans2012-03-031-0/+3
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