diff options
Diffstat (limited to 'ChangeLog')
| -rw-r--r-- | ChangeLog | 29 |
1 files changed, 26 insertions, 3 deletions
@@ -4,6 +4,29 @@ brevity. Much more detail can be found in the git revision history: https://github.com/jemalloc/jemalloc +* 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 @@ -21,7 +44,7 @@ brevity. Much more detail can be found in the git revision history: 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 MSVC-specific build/test issues. (@rustyx, @yuslepukhin) - Fix a variety of test failures that were due to test fragility rather than core bugs. (@jasone) @@ -80,14 +103,14 @@ brevity. Much more detail can be found in the git revision history: Bug fixes: - Fix stats.cactive accounting regression. (@rustyx, @jasone) - Handle unaligned keys in hash(). This caused problems for some ARM systems. - (@jasone, Christopher Ferris) + (@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. (Christopher Ferris, @jasone) + - 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) |