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OBS-URL: https://build.opensuse.org/package/show/devel:libraries:c_c++/jemalloc?expand=0&rev=70
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122
jemalloc.changes
122
jemalloc.changes
@@ -14,62 +14,72 @@ Thu Apr 4 09:44:44 UTC 2019 - Martin Liška <mliska@suse.cz>
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Wed Apr 3 08:35:44 UTC 2019 - Martin Liška <mliska@suse.cz>
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- Update to version 5.2.0:
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New features:
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* Implement oversize_threshold, which uses a dedicated arena for allocations crossing the specified threshold to reduce fragmentation.
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* Add extents usage information to stats.
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* Log time information for sampled allocations.
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* Support 0 size in sdallocx.
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* Output rate for certain counters in malloc_stats.
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* Add configure option --enable-readlinkat, which allows the use of readlinkat over readlink.
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* Add configure options --{enable,disable}-{static,shared} to allow not building unwanted libraries.
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* Add configure option --disable-libdl to enable fully static builds.
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* Add mallctl interfaces:
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* opt.oversize_threshold
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* stats.arenas.<i>.extent_avail
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* stats.arenas.<i>.extents.<j>.n{dirty,muzzy,retained}
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* stats.arenas.<i>.extents.<j>.{dirty,muzzy,retained}_bytes
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Optimizations and refactors:
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* Refactor the TSD module.
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* Avoid taking extents_muzzy mutex when muzzy is disabled.
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* Avoid taking large_mtx for auto arenas on the tcache flush path.
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* Optimize ixalloc by avoiding a size lookup.
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* 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.
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* Clean compilation with -Wextra.
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* Refactor the size class module.
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* Refactor the stats emitter.
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* Optimize pow2_ceil.
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* Avoid runtime detection of lazy purging on FreeBSD.
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* Optimize mmap(2) alignment handling on FreeBSD.
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* Improve error handling for THP state initialization.
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* Rework the malloc() fast path.
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* Rework the free() fast path.
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* Refactor and optimize the tcache fill / flush paths.
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* Optimize sync / lwsync on PowerPC.
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* Bypass extent_dalloc() when retain is enabled.
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* Optimize the locking on large deallocation.
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* Reduce the number of pages committed from sanity checking in debug build.
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* Deprecate OSSpinLock.
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* Lower the default number of background threads to 4 (when the feature is enabled).
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* Optimize the trylock spin wait.
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* Use arena index for arena-matching checks.
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* Avoid forced decay on thread termination when using background threads.
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* Disable muzzy decay by default.
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* Only initialize libgcc unwinder when profiling is enabled.
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Bug fixes:
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* Fix background thread index issues with max_background_threads.
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* Fix stats output for opt.lg_extent_max_active_fit.
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* Fix opt.prof_prefix initialization.
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* Properly trigger decay on tcache destroy.
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* Fix tcache.flush.
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* Detect whether explicit extent zero out is necessary with huge pages or custom extent hooks, which may change the purge semantics.
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* 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.
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* Fix a missing unlock on extent register error handling.
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Incompatible changes:
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* Remove --with-lg-page-sizes.
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* New features:
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* Implement oversize_threshold, which uses a dedicated arena
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for allocations crossing the specified threshold to reduce
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fragmentation.
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* Add extents usage information to stats.
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* Log time information for sampled allocations.
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* Support 0 size in sdallocx.
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* Output rate for certain counters in malloc_stats.
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* Add configure option --enable-readlinkat, which allows the
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use of readlinkat over readlink.
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* Add configure options --{enable,disable}-{static,shared} to
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allow not building unwanted libraries.
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* Add configure option --disable-libdl to enable fully static
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builds.
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* Add mallctl interfaces:
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* opt.oversize_threshold
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* stats.arenas.<i>.extent_avail
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* stats.arenas.<i>.extents.<j>.n{dirty,muzzy,retained}
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* stats.arenas.<i>.extents.<j>.{dirty,muzzy,retained}_bytes
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* Optimizations and refactors:
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* Refactor the TSD module.
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* Avoid taking extents_muzzy mutex when muzzy is disabled.
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* Avoid taking large_mtx for auto arenas on the tcache flush path.
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* Optimize ixalloc by avoiding a size lookup.
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* Implement opt.oversize_threshold which uses a dedicated arena
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for requests crossing the threshold, also eagerly purges the
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oversize extents. Default the threshold to 8 MiB.
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* Clean compilation with -Wextra.
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* Refactor the size class module.
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* Refactor the stats emitter.
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* Optimize pow2_ceil.
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* Avoid runtime detection of lazy purging on FreeBSD.
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* Optimize mmap(2) alignment handling on FreeBSD.
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* Improve error handling for THP state initialization.
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* Rework the malloc() fast path.
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* Rework the free() fast path.
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* Refactor and optimize the tcache fill / flush paths.
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* Optimize sync / lwsync on PowerPC.
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* Bypass extent_dalloc() when retain is enabled.
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* Optimize the locking on large deallocation.
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* Reduce the number of pages committed from sanity checking in
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debug build.
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* Deprecate OSSpinLock.
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* Lower the default number of background threads to 4 (when the
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feature is enabled).
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* Optimize the trylock spin wait.
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* Use arena index for arena-matching checks.
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* Avoid forced decay on thread termination when using
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background threads.
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* Disable muzzy decay by default.
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* Only initialize libgcc unwinder when profiling is enabled.
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* Bug fixes:
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* Fix background thread index issues with max_background_threads.
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* Fix stats output for opt.lg_extent_max_active_fit.
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* Fix opt.prof_prefix initialization.
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* Properly trigger decay on tcache destroy.
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* Fix tcache.flush.
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* Detect whether explicit extent zero out is necessary with
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huge pages or custom extent hooks, which may change the purge
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semantics.
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* Fix a side effect caused by extent_max_active_fit combined
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with decay-based purging, where freed extents can accumulate
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and not be reused for an extended period of time.
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* Fix a missing unlock on extent register error handling.
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* Incompatible changes:
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* Remove --with-lg-page-sizes.
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- Change URL of the project.
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