- Add disable-test_prof_log_many_traces-test.patch in order
to workaround https://github.com/jemalloc/jemalloc/issues/1477.
- Update to version 5.2.0:
New features:
* Implement oversize_threshold, which uses a dedicated arena for allocations crossing the specified threshold to reduce fragmentation. (@interwq)
* Add extents usage information to stats. (@tyleretzel)
* Log time information for sampled allocations. (@tyleretzel)
* Support 0 size in sdallocx. (@djwatson)
* Output rate for certain counters in malloc_stats. (@zinoale)
* Add configure option --enable-readlinkat, which allows the use of readlinkat over readlink. (@davidtgoldblatt)
* Add configure options --{enable,disable}-{static,shared} to allow not building unwanted libraries. (@Ericson2314)
* Add configure option --disable-libdl to enable fully static builds. (@interwq)
* Add mallctl interfaces:
* opt.oversize_threshold (@interwq)
* stats.arenas..extent_avail (@tyleretzel)
* stats.arenas..extents..n{dirty,muzzy,retained} (@tyleretzel)
* stats.arenas..extents..{dirty,muzzy,retained}_bytes (@tyleretzel)
Portability improvements:
* Update MSVC builds. (@maksqwe, @rustyx)
* Workaround a compiler optimizer bug on s390x. (@rkmisra)
* Make use of pthread_set_name_np(3) on FreeBSD. (@trasz)
* Implement malloc_getcpu() to enable percpu_arena for windows. (@santagada)
* Link against -pthread instead of -lpthread. (@paravoid)
* Make background_thread not dependent on libdl. (@interwq)
* Add stringify to fix a linker directive issue on MSVC. (@daverigby)
* Detect and fall back when 8-bit atomics are unavailable. (@interwq)
* Fall back to the default pthread_create(3) if dlsym(3) fails. (@interwq)
Optimizations and refactors:
* Refactor the TSD module. (@davidtgoldblatt)
* Avoid taking extents_muzzy mutex when muzzy is disabled. (@interwq)
* Avoid taking large_mtx for auto arenas on the tcache flush path. (@interwq)
* Optimize ixalloc by avoiding a size lookup. (@interwq)
* Implement opt.oversize_threshold which uses a dedicated arena for requests crossing the threshold, also eagerly purges the oversize extents. Default the threshold to 8 MiB. (@interwq)
* Clean compilation with -Wextra. (@gnzlbg, @jasone)
* Refactor the size class module. (@davidtgoldblatt)
* Refactor the stats emitter. (@tyleretzel)
* Optimize pow2_ceil. (@rkmisra)
* Avoid runtime detection of lazy purging on FreeBSD. (@trasz)
* Optimize mmap(2) alignment handling on FreeBSD. (@trasz)
* Improve error handling for THP state initialization. (@jsteemann)
* Rework the malloc() fast path. (@djwatson)
* Rework the free() fast path. (@djwatson)
* Refactor and optimize the tcache fill / flush paths. (@djwatson)
* Optimize sync / lwsync on PowerPC. (@chmeeedalf)
* Bypass extent_dalloc() when retain is enabled. (@interwq)
* Optimize the locking on large deallocation. (@interwq)
* Reduce the number of pages committed from sanity checking in debug build. (@trasz, @interwq)
* Deprecate OSSpinLock. (@interwq)
* Lower the default number of background threads to 4 (when the feature is enabled). (@interwq)
* Optimize the trylock spin wait. (@djwatson)
* Use arena index for arena-matching checks. (@interwq)
* Avoid forced decay on thread termination when using background threads. (@interwq)
* Disable muzzy decay by default. (@djwatson, @interwq)
* Only initialize libgcc unwinder when profiling is enabled. (@paravoid, @interwq)
Bug fixes (all only relevant to jemalloc 5.x):
* Fix background thread index issues with max_background_threads. (@djwatson, @interwq)
* Fix stats output for opt.lg_extent_max_active_fit. (@interwq)
* Fix opt.prof_prefix initialization. (@davidtgoldblatt)
* Properly trigger decay on tcache destroy. (@interwq, @amosbird)
* Fix tcache.flush. (@interwq)
* Detect whether explicit extent zero out is necessary with huge pages or custom extent hooks, which may change the purge semantics. (@interwq)
* Fix a side effect caused by extent_max_active_fit combined with decay-based purging, where freed extents can accumulate and not be reused for an extended period of time. (@interwq, @mpghf)
* Fix a missing unlock on extent register error handling. (@zoulasc)
Testing:
* Simplify the Travis script output. (@gnzlbg)
* Update the test scripts for FreeBSD. (@devnexen)
* Add unit tests for the producer-consumer pattern. (@interwq)
* Add Cirrus-CI config for FreeBSD builds. (@jasone)
* Add size-matching sanity checks on tcache flush. (@davidtgoldblatt, @interwq)
Incompatible changes:
* Remove --with-lg-page-sizes. (@davidtgoldblatt)
Documentation:
* Attempt to build docs by default, however skip doc building when xsltproc is missing. (@interwq, @cmuellner)
- Change URL of the project.