Commit Graph

527 Commits

Author SHA1 Message Date
Jason Evans
08551eee58 Fix run_quantize_ceil().
In practice this bug had limited impact (and then only by increasing
chunk fragmentation) because run_quantize_ceil() returned correct
results except for inputs that could only arise from aligned allocation
requests that required more than page alignment.

This bug existed in the original run quantization implementation, which
was introduced by 8a03cf039c (Implement
cache index randomization for large allocations.).
2016-02-22 16:28:00 -08:00
Jason Evans
a9a4684792 Test run quantization.
Also rename run_quantize_*() to improve clarity.  These tests
demonstrate that run_quantize_ceil() is flawed.
2016-02-22 14:58:05 -08:00
Jason Evans
9bad079039 Refactor time_* into nstime_*.
Use a single uint64_t in nstime_t to store nanoseconds rather than using
struct timespec.  This reduces fragility around conversions between long
and uint64_t, especially missing casts that only cause problems on
32-bit platforms.
2016-02-21 21:39:05 -08:00
Jason Evans
788d29d397 Fix Windows-specific prof-related compilation portability issues. 2016-02-20 23:46:14 -08:00
Jason Evans
fd9cd7a6cc Fix time_update() to compile and work on MinGW. 2016-02-20 23:45:22 -08:00
rustyx
efbee86278 Prevent MSVC from optimizing away tls_callback (resolves #318) 2016-02-20 10:52:53 -08:00
rustyx
7f283980f0 getpid() fix for Win32 2016-02-20 10:52:53 -08:00
Jason Evans
243f7a0508 Implement decay-based unused dirty page purging.
This is an alternative to the existing ratio-based unused dirty page
purging, and is intended to eventually become the sole purging
mechanism.

Add mallctls:
- opt.purge
- opt.decay_time
- arena.<i>.decay
- arena.<i>.decay_time
- arenas.decay_time
- stats.arenas.<i>.decay_time

This resolves #325.
2016-02-19 20:56:21 -08:00
Jason Evans
1a4ad3c0fa Refactor out arena_compute_npurge().
Refactor out arena_compute_npurge() by integrating its logic into
arena_stash_dirty() as an incremental computation.
2016-02-19 20:32:37 -08:00
Jason Evans
db927b6727 Refactor arenas_cache tsd.
Refactor arenas_cache tsd into arenas_tdata, which is a structure of
type arena_tdata_t.
2016-02-19 20:32:37 -08:00
Jason Evans
4985dc681e Refactor arena_ralloc_no_move().
Refactor early return logic in arena_ralloc_no_move() to return early on
failure rather than on success.
2016-02-19 20:32:37 -08:00
Jason Evans
578cd16581 Refactor arena_malloc_hard() out of arena_malloc(). 2016-02-19 20:32:32 -08:00
Jason Evans
34676d3369 Refactor prng* from cpp macros into inline functions.
Remove 32-bit variant, convert prng64() to prng_lg_range(), and add
prng_range().
2016-02-19 20:29:06 -08:00
Jason Evans
c87ab25d18 Use ticker for incremental tcache GC. 2016-02-19 20:29:06 -08:00
Jason Evans
9998000b2b Implement ticker.
Implement ticker, which provides a simple API for ticking off some
number of events before indicating that the ticker has hit its limit.
2016-02-19 20:29:06 -08:00
Jason Evans
94451d184b Flesh out time_*() API. 2016-02-19 20:29:06 -08:00
Cameron Evans
e5d5a4a517 Add time_update(). 2016-02-19 20:29:06 -08:00
Jason Evans
f829009929 Add --with-malloc-conf.
Add --with-malloc-conf, which makes it possible to embed a default
options string during configuration.
2016-02-19 20:29:06 -08:00
Cosmin Paraschiv
9cb481a73f Call malloc_test_boot0() from malloc_init_hard_recursible().
When using LinuxThreads, malloc bootstrapping deadlocks, since
malloc_tsd_boot0() ends up calling pthread_setspecific(), which causes
recursive allocation.  Fix it by moving the malloc_tsd_boot0() call to
malloc_init_hard_recursible().

The deadlock was introduced by 8bb3198f72
(Refactor/fix arenas manipulation.), when tsd_boot() was split and the
top half, tsd_boot0(), got an extra tsd_wrapper_set() call.
2016-01-11 11:10:39 -08:00
Jason Evans
f9e3459f75 Tweak code to allow compilation of concatenated src/*.c sources.
This resolves #294.
2015-11-12 11:06:41 -08:00
Dmitry-Me
ea59ebf4d3 Reuse previously computed value 2015-11-12 10:45:49 -08:00
Qi Wang
f4a0f32d34 Fast-path improvement: reduce # of branches and unnecessary operations.
- Combine multiple runtime branches into a single malloc_slow check.
- Avoid calling arena_choose / size2index / index2size on fast path.
- A few micro optimizations.
2015-11-10 14:28:34 -08:00
Joshua Kahn
13b4015531 Allow const keys for lookup
Signed-off-by: Steve Dougherty <sdougherty@barracuda.com>

This resolves #281.
2015-11-09 15:48:05 -08:00
Mike Hommey
f97298bfc1 Remove arena_run_dalloc_decommit().
This resolves #284.
2015-11-09 15:38:30 -08:00
Jason Evans
a784e411f2 Fix a xallocx(..., MALLOCX_ZERO) bug.
Fix xallocx(..., MALLOCX_ZERO to zero the last full trailing page of
large allocations that have been randomly assigned an offset of 0 when
--enable-cache-oblivious configure option is enabled.  This addresses a
special case missed in d260f442ce (Fix
xallocx(..., MALLOCX_ZERO) bugs.).
2015-09-24 22:21:55 -07:00
Jason Evans
d36c7ebb00 Work around an NPTL-specific TSD issue.
Work around a potentially bad thread-specific data initialization
interaction with NPTL (glibc's pthreads implementation).

This resolves #283.
2015-09-24 16:53:18 -07:00
Jason Evans
d260f442ce Fix xallocx(..., MALLOCX_ZERO) bugs.
Zero all trailing bytes of large allocations when
--enable-cache-oblivious configure option is enabled.  This regression
was introduced by 8a03cf039c (Implement
cache index randomization for large allocations.).

Zero trailing bytes of huge allocations when resizing from/to a size
class that is not a multiple of the chunk size.
2015-09-24 16:38:45 -07:00
Jason Evans
fb64ec29ec Fix prof_tctx_dump_iter() to filter.
Fix prof_tctx_dump_iter() to filter out nodes that were created after
heap profile dumping started.  Prior to this fix, spurious entries with
arbitrary object/byte counts could appear in heap profiles, which
resulted in jeprof inaccuracies or failures.
2015-09-21 18:37:55 -07:00
Jason Evans
e56b24e3a2 Make arena_dalloc_large_locked_impl() static. 2015-09-20 09:58:10 -07:00
Jason Evans
21523297fc Add mallocx() OOM tests. 2015-09-17 15:27:28 -07:00
Jason Evans
3ca0cf6a68 Fix prof_alloc_rollback().
Fix prof_alloc_rollback() to read tdata from thread-specific data rather
than dereferencing a potentially invalid tctx.
2015-09-17 14:49:50 -07:00
Jason Evans
3263be6efb Simplify imallocx_prof_sample().
Simplify imallocx_prof_sample() to always operate on usize rather than
sometimes using size.  This avoids redundant usize computations and
more closely fits the style adopted by i[rx]allocx_prof_sample() to fix
sampling bugs.
2015-09-17 10:19:28 -07:00
Jason Evans
4be9c79f88 Fix irallocx_prof_sample().
Fix irallocx_prof_sample() to always allocate large regions, even when
alignment is non-zero.
2015-09-17 10:17:55 -07:00
Jason Evans
38e2c8fa9c Fix ixallocx_prof_sample().
Fix ixallocx_prof_sample() to never modify nor create sampled small
allocations.  xallocx() is in general incapable of moving small
allocations, so this fix removes buggy code without loss of generality.
2015-09-17 10:05:56 -07:00
Jason Evans
9a505b768c Centralize xallocx() size[+extra] overflow checks. 2015-09-15 14:39:58 -07:00
Dmitry-Me
78ae1ac486 Reduce variable scope.
This resolves #274.
2015-09-15 11:19:20 -07:00
Jason Evans
8c485b02a6 Fix ixallocx_prof() to check for size greater than HUGE_MAXCLASS. 2015-09-15 00:51:09 -07:00
Jason Evans
708ed79834 Resolve an unsupported special case in arena_prof_tctx_set().
Add arena_prof_tctx_reset() and use it instead of arena_prof_tctx_set()
when resetting the tctx pointer during reallocation, which happens
whenever an originally sampled reallocated object is not sampled during
reallocation.

This regression was introduced by
594c759f37 (Optimize
arena_prof_tctx_set().)
2015-09-14 23:57:58 -07:00
Jason Evans
23f6e103c8 Fix ixallocx_prof_sample() argument order reversal.
Fix ixallocx_prof() to pass usize_max and zero to ixallocx_prof_sample()
in the correct order.
2015-09-14 23:57:09 -07:00
Jason Evans
ce9a4e3479 s/max_usize/usize_max/g 2015-09-14 23:55:54 -07:00
Jason Evans
d9704042ee s/oldptr/old_ptr/g 2015-09-14 23:55:54 -07:00
Jason Evans
cec0d63d8b Make one call to prof_active_get_unlocked() per allocation event.
Make one call to prof_active_get_unlocked() per allocation event, and
use the result throughout the relevant functions that handle an
allocation event.  Also add a missing check in prof_realloc().  These
fixes protect allocation events against concurrent prof_active changes.
2015-09-14 23:55:48 -07:00
Jason Evans
ef363de701 Fix irealloc_prof() to prof_alloc_rollback() on OOM. 2015-09-14 23:54:42 -07:00
Jason Evans
46ff049128 Optimize irallocx_prof() to optimistically update the sampler state. 2015-09-14 22:47:18 -07:00
Jason Evans
4acb6c7ff3 Fix ixallocx_prof() size+extra overflow.
Fix ixallocx_prof() to clamp the extra parameter if size+extra would
overflow HUGE_MAXCLASS.
2015-09-14 22:47:12 -07:00
Jason Evans
676df88e48 Rename arena_maxclass to large_maxclass.
arena_maxclass is no longer an appropriate name, because arenas also
manage huge allocations.
2015-09-11 20:50:20 -07:00
Jason Evans
560a4e1e01 Fix xallocx() bugs.
Fix xallocx() bugs related to the 'extra' parameter when specified as
non-zero.
2015-09-11 20:40:34 -07:00
Jason Evans
a00b10735a Fix "prof.reset" mallctl-related corruption.
Fix heap profiling to distinguish among otherwise identical sample sites
with interposed resets (triggered via the "prof.reset" mallctl).  This
bug could cause data structure corruption that would most likely result
in a segfault.
2015-09-09 23:16:10 -07:00
Dmitry-Me
a306a60651 Reduce variables scope 2015-09-04 10:42:33 -07:00
Mike Hommey
0a116faf95 Force initialization of the init_lock in malloc_init_hard on Windows XP
This resolves #269.
2015-09-04 10:35:20 -07:00
Jason Evans
594c759f37 Optimize arena_prof_tctx_set().
Optimize arena_prof_tctx_set() to avoid reading run metadata when
deciding whether it's actually necessary to write.
2015-09-02 14:52:24 -07:00
Mike Hommey
4a2a3c9a6e Don't purge junk filled chunks when shrinking huge allocations
When junk filling is enabled, shrinking an allocation fills the bytes
that were previously allocated but now aren't. Purging the chunk before
doing that is just a waste of time.

This resolves #260.
2015-08-27 22:00:09 -07:00
Mike Hommey
6d8075f1e6 Fix chunk purge hook calls for in-place huge shrinking reallocation.
Fix chunk purge hook calls for in-place huge shrinking reallocation to
specify the old chunk size rather than the new chunk size.  This bug
caused no correctness issues for the default chunk purge function, but
was visible to custom functions set via the "arena.<i>.chunk_hooks"
mallctl.

This resolves #264.
2015-08-27 20:32:57 -07:00
Jason Evans
30949da601 Fix arenas_cache_cleanup() and arena_get_hard().
Fix arenas_cache_cleanup() and arena_get_hard() to handle
allocation/deallocation within the application's thread-specific data
cleanup functions even after arenas_cache is torn down.

This is a more general fix that complements
45e9f66c28 (Fix arenas_cache_cleanup().).
2015-08-27 20:32:35 -07:00
Christopher Ferris
45e9f66c28 Fix arenas_cache_cleanup().
Fix arenas_cache_cleanup() to handle allocation/deallocation within the
application's thread-specific data cleanup functions even after
arenas_cache is torn down.
2015-08-21 12:33:17 -07:00
Jason Evans
d01fd19755 Rename index_t to szind_t to avoid an existing type on Solaris.
This resolves #256.
2015-08-19 15:21:32 -07:00
Jason Evans
5ef33a9f2b Don't bitshift by negative amounts.
Don't bitshift by negative amounts when encoding/decoding run sizes in
chunk header maps.  This affected systems with page sizes greater than 8
KiB.

Reported by Ingvar Hagelund <ingvar@redpill-linpro.com>.
2015-08-19 14:16:30 -07:00
Jason Evans
56af64dc19 Fix a strict aliasing violation. 2015-08-12 16:38:20 -07:00
Jason Evans
6ed18cb348 Fix chunk_dalloc_arena() re: zeroing due to purge. 2015-08-12 15:20:34 -07:00
Jason Evans
03bf5b67be Try to decommit new chunks.
Always leave decommit disabled on non-Windows systems.
2015-08-12 10:26:54 -07:00
Jason Evans
1f27abc1b1 Refactor arena_mapbits_{small,large}_set() to not preserve unzeroed.
Fix arena_run_split_large_helper() to treat newly committed memory as
zeroed.
2015-08-11 16:45:47 -07:00
Jason Evans
45186f0c07 Refactor arena_mapbits unzeroed flag management.
Only set the unzeroed flag when initializing the entire mapbits entry,
rather than mutating just the unzeroed bit.  This simplifies the
possible mapbits state transitions.
2015-08-10 23:03:34 -07:00
Jason Evans
de249c8679 Arena chunk decommit cleanups and fixes.
Decommit arena chunk header during chunk deallocation if the rest of the
chunk is decommitted.
2015-08-10 17:13:59 -07:00
Jason Evans
8fadb1a8c2 Implement chunk hook support for page run commit/decommit.
Cascade from decommit to purge when purging unused dirty pages, so that
it is possible to decommit cleaned memory rather than just purging.  For
non-Windows debug builds, decommit runs rather than purging them, since
this causes access of deallocated runs to segfault.

This resolves #251.
2015-08-07 00:50:58 -07:00
Jason Evans
5716d97f75 Fix an in-place growing large reallocation regression.
Fix arena_ralloc_large_grow() to properly account for large_pad, so that
in-place large reallocation succeeds when possible, rather than always
failing.  This regression was introduced by
8a03cf039c (Implement cache index
randomization for large allocations.)
2015-08-06 23:45:45 -07:00
Matthijs
c1a6a51e40 MSVC compatibility changes
- Decorate public function with __declspec(allocator) and __declspec(restrict), just like MSVC 1900
- Support JEMALLOC_HAS_RESTRICT by defining the restrict keyword
- Move __declspec(nothrow) between 'void' and '*' so it compiles once more
2015-08-04 09:01:48 -07:00
Jason Evans
b49a334a64 Generalize chunk management hooks.
Add the "arena.<i>.chunk_hooks" mallctl, which replaces and expands on
the "arena.<i>.chunk.{alloc,dalloc,purge}" mallctls.  The chunk hooks
allow control over chunk allocation/deallocation, decommit/commit,
purging, and splitting/merging, such that the application can rely on
jemalloc's internal chunk caching and retaining functionality, yet
implement a variety of chunk management mechanisms and policies.

Merge the chunks_[sz]ad_{mmap,dss} red-black trees into
chunks_[sz]ad_retained.  This slightly reduces how hard jemalloc tries
to honor the dss precedence setting; prior to this change the precedence
setting was also consulted when recycling chunks.

Fix chunk purging.  Don't purge chunks in arena_purge_stashed(); instead
deallocate them in arena_unstash_purged(), so that the dirty memory
linkage remains valid until after the last time it is used.

This resolves #176 and #201.
2015-08-03 21:49:02 -07:00
Jason Evans
d059b9d6a1 Implement support for non-coalescing maps on MinGW.
- Do not reallocate huge objects in place if the number of backing
  chunks would change.
- Do not cache multi-chunk mappings.

This resolves #213.
2015-07-24 18:39:14 -07:00
Jason Evans
40cbd30d50 Fix huge_ralloc_no_move() to succeed more often.
Fix huge_ralloc_no_move() to succeed if an allocation request results in
the same usable size as the existing allocation, even if the request
size is smaller than the usable size.  This bug did not cause
correctness issues, but it could cause unnecessary moves during
reallocation.
2015-07-24 18:20:48 -07:00
Jason Evans
87ccb55547 Fix huge_palloc() to handle size rather than usize input.
huge_ralloc() passes a size that may not be precisely a size class, so
make huge_palloc() handle the more general case of a size input rather
than usize.

This regression appears to have been introduced by the addition of
in-place huge reallocation; as such it was never incorporated into a
release.
2015-07-23 17:18:49 -07:00
Jason Evans
50883deb6e Change arena_palloc_large() parameter from size to usize.
This change merely documents that arena_palloc_large() always receives
usize as its argument.
2015-07-23 17:13:18 -07:00
Jason Evans
5fae7dc1b3 Fix MinGW-related portability issues.
Create and use FMT* macros that are equivalent to the PRI* macros that
inttypes.h defines.  This allows uniform use of the Unix-specific format
specifiers, e.g. "%zu", as well as avoiding Windows-specific definitions
of e.g. PRIu64.

Add ffs()/ffsl() support for compiling with gcc.

Extract compatibility definitions of ENOENT, EINVAL, EAGAIN, EPERM,
ENOMEM, and ENORANGE into include/msvc_compat/windows_extra.h and
use the file for tests as well as for core jemalloc code.
2015-07-23 13:56:25 -07:00
Jason Evans
e42c309eba Add JEMALLOC_FORMAT_PRINTF().
Replace JEMALLOC_ATTR(format(printf, ...). with
JEMALLOC_FORMAT_PRINTF(), so that configuration feature tests can
omit the attribute if it would cause extraneous compilation warnings.
2015-07-22 15:44:47 -07:00
Jason Evans
00632609df Move JEMALLOC_NOTHROW just after return type.
Only use __declspec(nothrow) in C++ mode.

This resolves #244.
2015-07-21 08:21:13 -07:00
Mike Hommey
50cd636eed Remove JEMALLOC_ALLOC_SIZE annotations on functions not returning pointers
As per gcc documentation:
  The alloc_size attribute is used to tell the compiler that the function
  return value points to memory (...)

This resolves #245.
2015-07-21 09:16:07 +09:00
Jason Evans
f2bc85298c Add the config.cache_oblivious mallctl. 2015-07-17 16:38:25 -07:00
Jason Evans
aa2826621e Revert to first-best-fit run/chunk allocation.
This effectively reverts 97c04a9383 (Use
first-fit rather than first-best-fit run/chunk allocation.).  In some
pathological cases, first-fit search dominates allocation time, and it
also tends not to converge as readily on a steady state of memory
layout, since precise allocation order has a bigger effect than for
first-best-fit.
2015-07-15 17:15:19 -07:00
Jason Evans
ae93d6bf36 Avoid function prototype incompatibilities.
Add various function attributes to the exported functions to give the
compiler more information to work with during optimization, and also
specify throw() when compiling with C++ on Linux, in order to adequately
match what __THROW does in glibc.

This resolves #237.
2015-07-10 16:09:40 -07:00
Jason Evans
d508ec71eb Fix a variable declaration typo. 2015-07-07 20:28:22 -07:00
Jason Evans
b946086b08 Use jemalloc_ffs() rather than ffs(). 2015-07-07 20:16:25 -07:00
Jason Evans
0313607e66 Fix MinGW build warnings.
Conditionally define ENOENT, EINVAL, etc. (was unconditional).

Add/use PRIzu, PRIzd, and PRIzx for use in malloc_printf() calls.  gcc issued
(harmless) warnings since e.g. "%zu" should be "%Iu" on Windows, and the
alternative to this workaround would have been to disable the function
attributes which cause gcc to look for type mismatches in formatted printing
function calls.
2015-07-07 20:10:28 -07:00
Jason Evans
0dd3ad3841 Fix an assignment type warning for tls_callback. 2015-07-07 20:10:27 -07:00
Jason Evans
bce61d61bb Move a variable declaration closer to its use. 2015-07-07 09:32:05 -07:00
Matthijs
a1aaf949a5 Optimizations for Windows
- Set opt_lg_chunk based on run-time OS setting
- Verify LG_PAGE is compatible with run-time OS setting
- When targeting Windows Vista or newer, use SRWLOCK instead of CRITICAL_SECTION
- When targeting Windows Vista or newer, statically initialize init_lock
2015-06-25 22:53:58 +02:00
Jason Evans
241abc601b Fix size class overflow handling when profiling is enabled.
Fix size class overflow handling for malloc(), posix_memalign(),
memalign(), calloc(), and realloc() when profiling is enabled.

Remove an assertion that erroneously caused arena_sdalloc() to fail when
profiling was enabled.

This resolves #232.
2015-06-23 18:56:14 -07:00
Jason Evans
0a9f9a4d51 Convert arena_maybe_purge() recursion to iteration.
This resolves #235.
2015-06-22 18:50:58 -07:00
Jason Evans
dc0610a714 Add alignment assertions to public aligned allocation functions. 2015-06-22 18:48:58 -07:00
Jason Evans
4f6f2b131e Fix two valgrind integration regressions.
The regressions were never merged into the master branch.
2015-06-22 14:38:06 -07:00
Jason Evans
56048baeb4 Clarify relationship between stats.resident and stats.mapped. 2015-05-29 19:21:10 -07:00
Jason Evans
09983d2f54 Bypass tcache when draining quarantined allocations.
This avoids the potential surprise of deallocating an object with one
tcache specified, and having the object cached in a different tcache
once it drains from the quarantine.
2015-05-29 19:20:36 -07:00
Jason Evans
836bbe9951 Impose a minimum tcache count for small size classes.
Now that small allocation runs have fewer regions due to run metadata
residing in chunk headers, an explicit minimum tcache count is needed to
make sure that tcache adequately amortizes synchronization overhead.
2015-05-19 17:47:16 -07:00
Jason Evans
5154175cf1 Fix performance regression in arena_palloc().
Pass large allocation requests to arena_malloc() when possible.  This
regression was introduced by 155bfa7da1
(Normalize size classes.).
2015-05-19 17:42:31 -07:00
Jason Evans
5aa50a2834 Fix nhbins calculation.
This regression was introduced by
155bfa7da1 (Normalize size classes.).
2015-05-19 17:40:37 -07:00
Jason Evans
fd5f9e43c3 Avoid atomic operations for dependent rtree reads. 2015-05-15 17:02:30 -07:00
Jason Evans
8a03cf039c Implement cache index randomization for large allocations.
Extract szad size quantization into {extent,run}_quantize(), and .
quantize szad run sizes to the union of valid small region run sizes and
large run sizes.

Refactor iteration in arena_run_first_fit() to use
run_quantize{,_first,_next(), and add support for padded large runs.

For large allocations that have no specified alignment constraints,
compute a pseudo-random offset from the beginning of the first backing
page that is a multiple of the cache line size.  Under typical
configurations with 4-KiB pages and 64-byte cache lines this results in
a uniform distribution among 64 page boundary offsets.

Add the --disable-cache-oblivious option, primarily intended for
performance testing.

This resolves #13.
2015-05-06 13:27:39 -07:00
Jason Evans
7041720ac2 Rename pprof to jeprof.
This rename avoids installation collisions with the upstream gperftools.
Additionally, jemalloc's per thread heap profile functionality
introduced an incompatible file format, so it's now worthwhile to
clearly distinguish jemalloc's version of this script from the upstream
version.

This resolves #229.
2015-05-01 12:31:12 -07:00
Jason Evans
8e33c21d2d Prefer /proc/<pid>/task/<pid>/maps over /proc/<pid>/maps on Linux.
This resolves #227.
2015-05-01 09:03:20 -07:00
Igor Podlesny
95e88de0aa Concise JEMALLOC_HAVE_ISSETUGID case in secure_getenv(). 2015-04-30 11:48:56 -07:00
Jason Evans
65db63cf3f Fix in-place shrinking huge reallocation purging bugs.
Fix the shrinking case of huge_ralloc_no_move_similar() to purge the
correct number of pages, at the correct offset.  This regression was
introduced by 8d6a3e8321 (Implement
dynamic per arena control over dirty page purging.).

Fix huge_ralloc_no_move_shrink() to purge the correct number of pages.
This bug was introduced by 9673983443
(Purge/zero sub-chunk huge allocations as necessary.).
2015-03-25 19:10:06 -07:00
Jason Evans
562d266511 Add the "stats.arenas.<i>.lg_dirty_mult" mallctl. 2015-03-24 16:41:38 -07:00