Commit Graph

1798 Commits

Author SHA1 Message Date
Jason Evans
acb7b1f53e Add --disable-syscall.
This resolves #517.
2016-12-03 16:50:58 -08:00
Jason Evans
7179351a45 Update configure cache file example. 2016-11-30 09:57:12 -08:00
John Szakmeister
eb29d7ec0e Implement a more reliable detection scheme for os_unfair_lock.
The core issue here is the weak linking of the symbol, and in certain
environments--for instance, using the latest Xcode (8.1) with the latest
SDK (10.12)--os_unfair_lock may resolve even though you're compiling on
a host that doesn't support it (10.11).

We can use the availability macros to circumvent this problem, and
detect that we're not compiling for a target that is going to support
them and error out at compile time.  The other alternative is to do a
runtime check, but that presents issues for cross-compiling.
2016-11-23 15:32:35 -05:00
Jason Evans
32127949a3 Enable overriding JEMALLOC_{ALLOC,FREE}_JUNK.
This resolves #509.
2016-11-22 10:58:58 -08:00
Jason Evans
c3b85f2585 Style fixes. 2016-11-22 10:58:23 -08:00
Jason Evans
5234be2133 Add pthread_atfork(3) feature test.
Some versions of Android provide a pthreads library without providing
pthread_atfork(), so in practice a separate feature test is necessary
for the latter.
2016-11-17 15:14:57 -08:00
Jason Evans
fda60be799 Update a comment. 2016-11-17 11:50:52 -08:00
Jason Evans
a64123ce13 Refactor madvise(2) configuration.
Add feature tests for the MADV_FREE and MADV_DONTNEED flags to
madvise(2), so that MADV_FREE is detected and used for Linux kernel
versions 4.5 and newer.  Refactor pages_purge() so that on systems which
support both flags, MADV_FREE is preferred over MADV_DONTNEED.

This resolves #387.
2016-11-17 10:31:57 -08:00
Jason Evans
f7ca1c9bc3 Remove a residual comment. 2016-11-16 19:41:09 -08:00
Jason Evans
aec5a051e8 Avoid gcc type-limits warnings. 2016-11-16 18:28:38 -08:00
Maks Naumov
95974c0440 Remove size_t -> unsigned -> size_t conversion. 2016-11-16 11:23:31 -08:00
Jason Evans
9b94c015af Document how to use --cache configure option.
This resolves #494.
2016-11-16 10:56:40 -08:00
Jason Evans
4066b4ef57 Revert "Add JE_RUNNABLE() and use it for os_unfair_lock_*() test."
This reverts commit a2e601a223.

JE_RUNNABLE() causes general cross-compilation issues.
2016-11-16 10:40:00 -08:00
Jason Evans
8a4528bdd1 Uniformly cast mallctl[bymib]() oldp/newp arguments to (void *).
This avoids warnings in some cases, and is otherwise generally good
hygiene.
2016-11-15 15:01:03 -08:00
Jason Evans
2c95154501 Add packing test, which verifies stable layout policy. 2016-11-15 13:08:33 -08:00
Jason Evans
a38acf716e Add extent serial numbers.
Add extent serial numbers and use them where appropriate as a sort key
that is higher priority than address, so that the allocation policy
prefers older extents.

This resolves #147.
2016-11-15 13:08:33 -08:00
Jason Evans
c0a667112c Fix arena_reset() crashing bug.
This regression was caused by 498856f44a
(Move slabs out of chunks.).
2016-11-15 10:34:02 -08:00
Jason Evans
a2e601a223 Add JE_RUNNABLE() and use it for os_unfair_lock_*() test.
This resolves #494.
2016-11-12 09:48:06 -08:00
Jason Evans
c25e711cf9 Reduce memory usage for sdallocx() test_alignment_and_size. 2016-11-11 23:50:35 -08:00
Jason Evans
32d69e967e Add configure support for *-*-linux-android.
This is tailored to Android, i.e. more specific than the *-*-linux*
configuration.

This resolves #471.
2016-11-10 15:36:17 -08:00
Jason Evans
c233dd5e40 Update config.{guess,sub} from upstream. 2016-11-10 15:02:05 -08:00
Jason Evans
85dae2ff49 Update ChangeLog for 4.3.1. 2016-11-07 16:22:02 -08:00
Jason Evans
5e0373c815 Fix test_prng_lg_range_zu() to work on 32-bit systems. 2016-11-07 11:50:11 -08:00
Jason Evans
cda59f9970 Rename atomic_*_{uint32,uint64,u}() to atomic_*_{u32,u64,zu}().
This change conforms to naming conventions throughout the codebase.
2016-11-07 11:27:48 -08:00
Jason Evans
2e46b13ad5 Revert "Define 64-bits atomics unconditionally"
This reverts commit c2942e2c0e.

This resolves #495.
2016-11-07 10:53:35 -08:00
Jason Evans
04b463546e Refactor prng to not use 64-bit atomics on 32-bit platforms.
This resolves #495.
2016-11-07 10:52:44 -08:00
Jason Evans
e0a9e78374 Update ChangeLog for 4.3.0. 2016-11-04 15:15:24 -07:00
Matthew Parkinson
d30b3ea51a Fixes to Visual Studio Project files 2016-11-04 09:59:05 -07:00
Jason Evans
6d2a57cfbb Use -std=gnu11 if available.
This supersedes -std=gnu99, and enables C11 atomics.
2016-11-03 21:57:17 -07:00
Jason Evans
0760876927 Update ChangeLog for 4.3.0. 2016-11-04 00:02:43 -07:00
Jason Evans
a967fae362 Fix/simplify extent_recycle() allocation size computations.
Do not call s2u() during alloc_size computation, since any necessary
ceiling increase is taken care of later by extent_first_best_fit() -->
extent_size_quantize_ceil(), and the s2u() call may erroneously cause a
higher quantization result.

Remove an overly strict overflow check that was added in
4a7852137d (Fix extent_recycle()'s
cache-oblivious padding support.).
2016-11-03 23:49:21 -07:00
Jason Evans
4a7852137d Fix extent_recycle()'s cache-oblivious padding support.
Add padding *after* computing the size class, so that the optimal size
class isn't skipped during search for a usable extent.  This regression
was caused by b46261d58b (Implement
cache-oblivious support for huge size classes.).
2016-11-03 22:33:35 -07:00
Jason Evans
ea9961acdb Fix psz/pind edge cases.
Add an "over-size" extent heap in which to store extents which exceed
the maximum size class (plus cache-oblivious padding, if enabled).
Remove psz2ind_clamp() and use psz2ind() instead so that trying to
allocate the maximum size class can in principle succeed.  In practice,
this allows assertions to hold so that OOM errors can be successfully
generated.
2016-11-03 22:33:34 -07:00
Jason Evans
8dd5ea87ca Fix extent_alloc_cache[_locked]() to support decommitted allocation.
Fix extent_alloc_cache[_locked]() to support decommitted allocation, and
use this ability in arena_stash_dirty(), so that decommitted extents are
not needlessly committed during purging.  In practice this does not
happen on any currently supported systems, because both extent merging
and decommit must be implemented; all supported systems implement one
xor the other.
2016-11-03 22:33:23 -07:00
Jason Evans
4f7d8c2dee Update symbol mangling. 2016-11-03 15:00:02 -07:00
Jason Evans
04e1328ef1 Update ChangeLog for 4.3.0. 2016-11-02 21:39:24 -07:00
Samuel Moritz
69f027b855 Support Debian GNU/kFreeBSD.
Treat it exactly like Linux since they both use GNU libc.
2016-11-02 20:36:37 -07:00
Dave Watson
25f7bbcf28 Fix long spinning in rtree_node_init
rtree_node_init spinlocks the node, allocates, and then sets the node.
This is under heavy contention at the top of the tree if many threads
start to allocate at the same time.

Instead, take a per-rtree sleeping mutex to reduce spinning.  Tested
both pthreads and osx OSSpinLock, and both reduce spinning adequately

Previous benchmark time:
./ttest1 500 100
~15s

New benchmark time:
./ttest1 500 100
.57s
2016-11-02 20:30:53 -07:00
Dave Watson
712fde79fd Check for existance of CPU_COUNT macro before using it.
This resolves #485.
2016-11-02 20:05:40 -07:00
Jason Evans
83ebf2fda5 Fix sycall(2) configure test for Linux. 2016-11-02 19:50:44 -07:00
Jason Evans
d82f2b3473 Do not use syscall(2) on OS X 10.12 (deprecated). 2016-11-02 19:18:33 -07:00
Jason Evans
795f6689de Add os_unfair_lock support.
OS X 10.12 deprecated OSSpinLock; os_unfair_lock is the recommended
replacement.
2016-11-02 18:09:45 -07:00
Jason Evans
d9f7b2a430 Fix/refactor zone allocator integration code.
Fix zone_force_unlock() to reinitialize, rather than unlocking mutexes,
since OS X 10.12 cannot tolerate a child unlocking mutexes that were
locked by its parent.

Refactor; this was a side effect of experimenting with zone
{de,re}registration during fork(2).
2016-11-02 18:06:40 -07:00
Jason Evans
b54072dfee Call _exit(2) rather than exit(3) in forked child.
_exit(2) is async-signal-safe, whereas exit(3) is not.
2016-11-02 18:05:19 -07:00
Jason Evans
eee1ca655e Force no lazy-lock on Windows.
Monitoring thread creation is unimplemented for Windows, which means
lazy-lock cannot function correctly.

This resolves #310.
2016-11-02 09:14:47 -07:00
Jason Evans
7b0a8b74f0 malloc_stats_print() fixes/cleanups.
Fix and clean up various malloc_stats_print() issues caused by
0ba5b9b618 (Add "J" (JSON) support to
malloc_stats_print().).
2016-11-01 15:26:35 -07:00
Jason Evans
2a2d1b6e86 Use <quote>...</quote> rather than &ldquo;...&rdquo; or "..." in XML. 2016-11-01 13:25:42 -07:00
Jason Evans
0ba5b9b618 Add "J" (JSON) support to malloc_stats_print().
This resolves #474.
2016-10-31 22:30:49 -07:00
Jason Evans
b93f63b3eb Fix extent_rtree acquire() to release element on error.
This resolves #480.
2016-10-31 16:32:33 -07:00
Jason Evans
90b60eeae4 Add an assertion in witness_owner(). 2016-10-31 15:28:22 -07:00