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Diffstat (limited to 'deps/jemalloc/ChangeLog')
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diff --git a/deps/jemalloc/ChangeLog b/deps/jemalloc/ChangeLog index f75edd933..e3b0a5190 100644 --- a/deps/jemalloc/ChangeLog +++ b/deps/jemalloc/ChangeLog @@ -4,226 +4,6 @@ brevity. Much more detail can be found in the git revision history: https://github.com/jemalloc/jemalloc -* 4.4.0 (December 3, 2016) - - New features: - - Add configure support for *-*-linux-android. (@cferris1000, @jasone) - - Add the --disable-syscall configure option, for use on systems that place - security-motivated limitations on syscall(2). (@jasone) - - Add support for Debian GNU/kFreeBSD. (@thesam) - - Optimizations: - - Add extent serial numbers and use them where appropriate as a sort key that - is higher priority than address, so that the allocation policy prefers older - extents. This tends to improve locality (decrease fragmentation) when - memory grows downward. (@jasone) - - Refactor madvise(2) configuration so that MADV_FREE is detected and utilized - on Linux 4.5 and newer. (@jasone) - - Mark partially purged arena chunks as non-huge-page. This improves - interaction with Linux's transparent huge page functionality. (@jasone) - - Bug fixes: - - Fix size class computations for edge conditions involving extremely large - allocations. This regression was first released in 4.0.0. (@jasone, - @ingvarha) - - Remove overly restrictive assertions related to the cactive statistic. This - regression was first released in 4.1.0. (@jasone) - - Implement a more reliable detection scheme for os_unfair_lock on macOS. - (@jszakmeister) - -* 4.3.1 (November 7, 2016) - - Bug fixes: - - Fix a severe virtual memory leak. This regression was first released in - 4.3.0. (@interwq, @jasone) - - Refactor atomic and prng APIs to restore support for 32-bit platforms that - use pre-C11 toolchains, e.g. FreeBSD's mips. (@jasone) - -* 4.3.0 (November 4, 2016) - - This is the first release that passes the test suite for multiple Windows - configurations, thanks in large part to @glandium setting up continuous - integration via AppVeyor (and Travis CI for Linux and OS X). - - New features: - - Add "J" (JSON) support to malloc_stats_print(). (@jasone) - - Add Cray compiler support. (@ronawho) - - Optimizations: - - Add/use adaptive spinning for bootstrapping and radix tree node - initialization. (@jasone) - - Bug fixes: - - Fix large allocation to search starting in the optimal size class heap, - which can substantially reduce virtual memory churn and fragmentation. This - regression was first released in 4.0.0. (@mjp41, @jasone) - - Fix stats.arenas.<i>.nthreads accounting. (@interwq) - - Fix and simplify decay-based purging. (@jasone) - - Make DSS (sbrk(2)-related) operations lockless, which resolves potential - deadlocks during thread exit. (@jasone) - - Fix over-sized allocation of radix tree leaf nodes. (@mjp41, @ogaun, - @jasone) - - Fix over-sized allocation of arena_t (plus associated stats) data - structures. (@jasone, @interwq) - - Fix EXTRA_CFLAGS to not affect configuration. (@jasone) - - Fix a Valgrind integration bug. (@ronawho) - - Disallow 0x5a junk filling when running in Valgrind. (@jasone) - - Fix a file descriptor leak on Linux. This regression was first released in - 4.2.0. (@vsarunas, @jasone) - - Fix static linking of jemalloc with glibc. (@djwatson) - - Use syscall(2) rather than {open,read,close}(2) during boot on Linux. This - works around other libraries' system call wrappers performing reentrant - allocation. (@kspinka, @Whissi, @jasone) - - Fix OS X default zone replacement to work with OS X 10.12. (@glandium, - @jasone) - - Fix cached memory management to avoid needless commit/decommit operations - during purging, which resolves permanent virtual memory map fragmentation - issues on Windows. (@mjp41, @jasone) - - Fix TSD fetches to avoid (recursive) allocation. This is relevant to - non-TLS and Windows configurations. (@jasone) - - Fix malloc_conf overriding to work on Windows. (@jasone) - - Forcibly disable lazy-lock on Windows (was forcibly *enabled*). (@jasone) - -* 4.2.1 (June 8, 2016) - - Bug fixes: - - Fix bootstrapping issues for configurations that require allocation during - tsd initialization (e.g. --disable-tls). (@cferris1000, @jasone) - - Fix gettimeofday() version of nstime_update(). (@ronawho) - - Fix Valgrind regressions in calloc() and chunk_alloc_wrapper(). (@ronawho) - - Fix potential VM map fragmentation regression. (@jasone) - - Fix opt_zero-triggered in-place huge reallocation zeroing. (@jasone) - - Fix heap profiling context leaks in reallocation edge cases. (@jasone) - -* 4.2.0 (May 12, 2016) - - New features: - - Add the arena.<i>.reset mallctl, which makes it possible to discard all of - an arena's allocations in a single operation. (@jasone) - - Add the stats.retained and stats.arenas.<i>.retained statistics. (@jasone) - - Add the --with-version configure option. (@jasone) - - Support --with-lg-page values larger than actual page size. (@jasone) - - Optimizations: - - Use pairing heaps rather than red-black trees for various hot data - structures. (@djwatson, @jasone) - - Streamline fast paths of rtree operations. (@jasone) - - Optimize the fast paths of calloc() and [m,d,sd]allocx(). (@jasone) - - Decommit unused virtual memory if the OS does not overcommit. (@jasone) - - Specify MAP_NORESERVE on Linux if [heuristic] overcommit is active, in order - to avoid unfortunate interactions during fork(2). (@jasone) - - Bug fixes: - - Fix chunk accounting related to triggering gdump profiles. (@jasone) - - Link against librt for clock_gettime(2) if glibc < 2.17. (@jasone) - - Scale leak report summary according to sampling probability. (@jasone) - -* 4.1.1 (May 3, 2016) - - This bugfix release resolves a variety of mostly minor issues, though the - bitmap fix is critical for 64-bit Windows. - - Bug fixes: - - Fix the linear scan version of bitmap_sfu() to shift by the proper amount - even when sizeof(long) is not the same as sizeof(void *), as on 64-bit - Windows. (@jasone) - - Fix hashing functions to avoid unaligned memory accesses (and resulting - crashes). This is relevant at least to some ARM-based platforms. - (@rkmisra) - - Fix fork()-related lock rank ordering reversals. These reversals were - unlikely to cause deadlocks in practice except when heap profiling was - enabled and active. (@jasone) - - Fix various chunk leaks in OOM code paths. (@jasone) - - Fix malloc_stats_print() to print opt.narenas correctly. (@jasone) - - Fix MSVC-specific build/test issues. (@rustyx, @yuslepukhin) - - Fix a variety of test failures that were due to test fragility rather than - core bugs. (@jasone) - -* 4.1.0 (February 28, 2016) - - This release is primarily about optimizations, but it also incorporates a lot - of portability-motivated refactoring and enhancements. Many people worked on - this release, to an extent that even with the omission here of minor changes - (see git revision history), and of the people who reported and diagnosed - issues, so much of the work was contributed that starting with this release, - changes are annotated with author credits to help reflect the collaborative - effort involved. - - New features: - - Implement decay-based unused dirty page purging, a major optimization with - mallctl API impact. This is an alternative to the existing ratio-based - unused dirty page purging, and is intended to eventually become the sole - purging mechanism. New mallctls: - + opt.purge - + opt.decay_time - + arena.<i>.decay - + arena.<i>.decay_time - + arenas.decay_time - + stats.arenas.<i>.decay_time - (@jasone, @cevans87) - - Add --with-malloc-conf, which makes it possible to embed a default - options string during configuration. This was motivated by the desire to - specify --with-malloc-conf=purge:decay , since the default must remain - purge:ratio until the 5.0.0 release. (@jasone) - - Add MS Visual Studio 2015 support. (@rustyx, @yuslepukhin) - - Make *allocx() size class overflow behavior defined. The maximum - size class is now less than PTRDIFF_MAX to protect applications against - numerical overflow, and all allocation functions are guaranteed to indicate - errors rather than potentially crashing if the request size exceeds the - maximum size class. (@jasone) - - jeprof: - + Add raw heap profile support. (@jasone) - + Add --retain and --exclude for backtrace symbol filtering. (@jasone) - - Optimizations: - - Optimize the fast path to combine various bootstrapping and configuration - checks and execute more streamlined code in the common case. (@interwq) - - Use linear scan for small bitmaps (used for small object tracking). In - addition to speeding up bitmap operations on 64-bit systems, this reduces - allocator metadata overhead by approximately 0.2%. (@djwatson) - - Separate arena_avail trees, which substantially speeds up run tree - operations. (@djwatson) - - Use memoization (boot-time-computed table) for run quantization. Separate - arena_avail trees reduced the importance of this optimization. (@jasone) - - Attempt mmap-based in-place huge reallocation. This can dramatically speed - up incremental huge reallocation. (@jasone) - - Incompatible changes: - - Make opt.narenas unsigned rather than size_t. (@jasone) - - Bug fixes: - - Fix stats.cactive accounting regression. (@rustyx, @jasone) - - Handle unaligned keys in hash(). This caused problems for some ARM systems. - (@jasone, @cferris1000) - - Refactor arenas array. In addition to fixing a fork-related deadlock, this - makes arena lookups faster and simpler. (@jasone) - - Move retained memory allocation out of the default chunk allocation - function, to a location that gets executed even if the application installs - a custom chunk allocation function. This resolves a virtual memory leak. - (@buchgr) - - Fix a potential tsd cleanup leak. (@cferris1000, @jasone) - - Fix run quantization. In practice this bug had no impact unless - applications requested memory with alignment exceeding one page. - (@jasone, @djwatson) - - Fix LinuxThreads-specific bootstrapping deadlock. (Cosmin Paraschiv) - - jeprof: - + Don't discard curl options if timeout is not defined. (@djwatson) - + Detect failed profile fetches. (@djwatson) - - Fix stats.arenas.<i>.{dss,lg_dirty_mult,decay_time,pactive,pdirty} for - --disable-stats case. (@jasone) - -* 4.0.4 (October 24, 2015) - - This bugfix release fixes another xallocx() regression. No other regressions - have come to light in over a month, so this is likely a good starting point - for people who prefer to wait for "dot one" releases with all the major issues - shaken out. - - Bug fixes: - - Fix xallocx(..., MALLOCX_ZERO to zero the last full trailing page of large - allocations that have been randomly assigned an offset of 0 when - --enable-cache-oblivious configure option is enabled. - * 4.0.3 (September 24, 2015) This bugfix release continues the trend of xallocx() and heap profiling fixes. |