+* 3.0.0 (May 11, 2012)
+
+ Although this version adds some major new features, the primary focus is on
+ internal code cleanup that facilitates maintainability and portability, most
+ of which is not reflected in the ChangeLog. This is the first release to
+ incorporate substantial contributions from numerous other developers, and the
+ result is a more broadly useful allocator (see the git revision history for
+ contribution details). Note that the license has been unified, thanks to
+ Facebook granting a license under the same terms as the other copyright
+ holders (see COPYING).
+
+ New features:
+ - Implement Valgrind support, redzones, and quarantine.
+ - Add support for additional platforms:
+ + FreeBSD
+ + Mac OS X Lion
+ + MinGW
+ + Windows (no support yet for replacing the system malloc)
+ - Add support for additional architectures:
+ + MIPS
+ + SH4
+ + Tilera
+ - Add support for cross compiling.
+ - Add nallocm(), which rounds a request size up to the nearest size class
+ without actually allocating.
+ - Implement aligned_alloc() (blame C11).
+ - Add the "thread.tcache.enabled" mallctl.
+ - Add the "opt.prof_final" mallctl.
+ - Update pprof (from gperftools 2.0).
+ - Add the --with-mangling option.
+ - Add the --disable-experimental option.
+ - Add the --disable-munmap option, and make it the default on Linux.
+ - Add the --enable-mremap option, which disables use of mremap(2) by default.
+
+ Incompatible changes:
+ - Enable stats by default.
+ - Enable fill by default.
+ - Disable lazy locking by default.
+ - Rename the "tcache.flush" mallctl to "thread.tcache.flush".
+ - Rename the "arenas.pagesize" mallctl to "arenas.page".
+ - Change the "opt.lg_prof_sample" default from 0 to 19 (1 B to 512 KiB).
+ - Change the "opt.prof_accum" default from true to false.
+
+ Removed features:
+ - Remove the swap feature, including the "config.swap", "swap.avail",
+ "swap.prezeroed", "swap.nfds", and "swap.fds" mallctls.
+ - Remove highruns statistics, including the
+ "stats.arenas.<i>.bins.<j>.highruns" and
+ "stats.arenas.<i>.lruns.<j>.highruns" mallctls.
+ - As part of small size class refactoring, remove the "opt.lg_[qc]space_max",
+ "arenas.cacheline", "arenas.subpage", "arenas.[tqcs]space_{min,max}", and
+ "arenas.[tqcs]bins" mallctls.
+ - Remove the "arenas.chunksize" mallctl.
+ - Remove the "opt.lg_prof_tcmax" option.
+ - Remove the "opt.lg_prof_bt_max" option.
+ - Remove the "opt.lg_tcache_gc_sweep" option.
+ - Remove the --disable-tiny option, including the "config.tiny" mallctl.
+ - Remove the --enable-dynamic-page-shift configure option.
+ - Remove the --enable-sysv configure option.
+
+ Bug fixes:
+ - Fix a statistics-related bug in the "thread.arena" mallctl that could cause
+ invalid statistics and crashes.
+ - Work around TLS deallocation via free() on Linux. This bug could cause
+ write-after-free memory corruption.
+ - Fix a potential deadlock that could occur during interval- and
+ growth-triggered heap profile dumps.
+ - Fix large calloc() zeroing bugs due to dropping chunk map unzeroed flags.
+ - Fix chunk_alloc_dss() to stop claiming memory is zeroed. This bug could
+ cause memory corruption and crashes with --enable-dss specified.
+ - Fix fork-related bugs that could cause deadlock in children between fork
+ and exec.
+ - Fix malloc_stats_print() to honor 'b' and 'l' in the opts parameter.
+ - Fix realloc(p, 0) to act like free(p).
+ - Do not enforce minimum alignment in memalign().
+ - Check for NULL pointer in malloc_usable_size().
+ - Fix an off-by-one heap profile statistics bug that could be observed in
+ interval- and growth-triggered heap profiles.
+ - Fix the "epoch" mallctl to update cached stats even if the passed in epoch
+ is 0.
+ - Fix bin->runcur management to fix a layout policy bug. This bug did not
+ affect correctness.
+ - Fix a bug in choose_arena_hard() that potentially caused more arenas to be
+ initialized than necessary.
+ - Add missing "opt.lg_tcache_max" mallctl implementation.
+ - Use glibc allocator hooks to make mixed allocator usage less likely.
+ - Fix build issues for --disable-tcache.
+ - Don't mangle pthread_create() when --with-private-namespace is specified.
+
projects / redis.git / blobdiff