Don't look for a shared libunwind if --with-static-libunwind is
specified.
Set SONAME when linking the shared libjemalloc.
Add DESTDIR support.
Add install_{include,lib/man} build targets.
Clean up compiler flag configuration.
Use left-leaning 2-3 red-black trees instead of left-leaning 2-3-4
red-black trees. This reduces maximum tree height from (3 lg n) to
(2 lg n).
Do lazy balance fixup, rather than transforming the tree during the down
pass. This improves insert/remove speed by ~30%.
Use callback-based iteration rather than macros.
Remove all functionality related to tracing. This functionality was
useful for understanding memory fragmentation during early algorithmic
design of jemalloc, but it had little utility for non-trivial
applications, due to the sheer volume of data written to disk.
Add the --disable-prof-libgcc configure option, and add backtracing
based on libgcc, which is used by default.
Fix a bug in hash().
Fix various configuration-dependent compilation errors.
If a custom small_size2bin table was required due to non-default size
class settings, memory allocation prior to initializing chunk parameters
would cause a crash due to division by 0. The fix re-orders the various
*_boot() function calls.
Bootstrapping is simpler now than it was before the base allocator
started just using the chunk allocator directly. This allows
arena_boot[01]() to be combined.
Add error detection for pthread_atfork() and atexit() function calls.
Fix a type mismatch for "arenas.nlruns" mallctl access. This bug caused
a crash during statistics printing on 64-bit systems.
Fix the "stats.active" mallctl to include active memory in huge objects.
Report active bytes for the whole application, as well as per arena.
Remove several unused variables.
A missing 'else' in chunk_alloc_mmap() caused an extra chunk to be
allocated every time the optimistic alignment path was entered, since
the following block would always be executed immediately afterward.
This chunk leak caused no increase in physical memory usage, but virtual
memory could grow until resource exaustion caused allocation failures.
Replace chunk stats code that was missing locking; this fixes a race
condition that could corrupt chunk statistics.
Converting malloc_stats_print() to use mallctl*().
Add a missing semicolon in th DSS code.
Convert malloc_tcache_flush() to a mallctl.
Convert malloc_swap_enable() to a set of mallctl's.
Use optional zeroing in arena_chunk_alloc() to avoid needless zeroing of
chunks. This is particularly important in the context of swapfile and
DSS allocation, since a long-lived application may commonly recycle
chunks.
Clean up whitespace.
Lock access of swap_avail when printing stats.
Use inttypes.h for portable printf() format specifiers, specifically for
uint64_t (PRIu64).
Change highchunks and curchunks stats from (unsigned long) to (size_t).
Fix a stats bug in large object curruns accounting.
Replace tcache_bin_fill() with arena_tcache_fill(), and fix a bug in an OOM
error path.
Fix API name mangling to coexist with __attribute__((malloc)).
Enhance bin run deallocation to avoid marking all pages as dirty, since the
dirty bits are already correct for all but the first page, due to the use of
arena_run_rc_{incr,decr}(). This tends to dramatically reduce the number of
pages that are marked dirty.
Modify arena_bin_run_size_calc() to assure that bin run headers never exceed
one page. In practice, this can't happen unless hard-coded constants (related
to RUN_MAX_OVRHD) are modified, but the dirty page tracking code assumes bin
run headers never extend past the first page, so it seems worth making this a
universally valid assumption.
Use JEMALLOC_ATTR(tls_model("initial-exec)) instead of -ftls-model=initial-exec
so that libjemalloc_pic.a can be directly linked into another library without
needing linker options changes.
Add attributes to malloc, calloc, and posix_memalign, for compatibility with
glibc's declarations.
Add function prototypes for the standard malloc(3) API.
Add the 'G'/'g' and 'H'/'h' MALLOC_OPTIONS flags.
Add the malloc_tcache_flush() function.
Disable thread-specific caching until the application goes multi-threaded.
Add the 'M' and 'm' MALLOC_OPTIONS flags, which control the maximum medium size
class.
Relax the cap on small/medium run size to arena_maxclass.
Reduce arena_run_reg_dalloc() integer division code complexity.
Increase the default chunk size from 1MiB to 4MiB.
implementation, calls free() after calling TSD destructors. This was causing a
crash during thread exit, since the magazine rack was no longer valid for the
thread. Fix this by using a special mag_rack value to indicate that
deallocation should bypass the magazine machinery.
jemalloc is configured.
Modify arena_malloc() API to avoid unnecessary choose_arena() calls. Remove
unnecessary code from choose_arena().
Enable lazy-lock by default, now that choose_arena() is both faster and out of
the critical path.
Implement objdir support in the build system.
Implement minimal Makefile.
Make compile-time-optional jemalloc features controllable via configure
options (debug, stats, tiny, mag, balance, dss).
Conditionally exclude most of the opt_* run-time options, based on configure
options (fill, xmalloc, sysv).
Implement optional --enable-dynamic-page-shift.
Implement optional --enable-lazy-lock.
Re-order malloc_init_hard() and use the malloc_initializer variable to support
recursive allocation in malloc_ncpus().
Add mag_rack_tsd in order to receive notifications of thread termination.
Add jemalloc.h.
