Commit Graph

240 Commits

Author SHA1 Message Date
Jason Evans
6a71d37a75 Add packing test, which verifies stable layout policy. 2016-11-15 13:33:47 -08:00
Jason Evans
ded4f38ffd Reduce memory usage for sdallocx() test_alignment_and_size. 2016-11-11 23:49:40 -08:00
Jason Evans
5d6cb6eb66 Refactor prng to not use 64-bit atomics on 32-bit platforms.
This resolves #495.
2016-11-07 11:50:59 -08:00
Jason Evans
a4e83e8593 Fix run leak.
Fix arena_run_first_best_fit() to search all potentially non-empty
runs_avail heaps, rather than ignoring the heap that contains runs
larger than large_maxclass, but less than chunksize.

This fixes a regression caused by
f193fd80cf (Refactor runs_avail.).

This resolves #493.
2016-11-07 09:43:39 -08:00
Jason Evans
3f2b8d9cfa Add os_unfair_lock support.
OS X 10.12 deprecated OSSpinLock; os_unfair_lock is the recommended
replacement.
2016-11-02 19:35:12 -07:00
Jason Evans
31db315f17 Call _exit(2) rather than exit(3) in forked child.
_exit(2) is async-signal-safe, whereas exit(3) is not.
2016-11-02 19:24:49 -07:00
Jason Evans
b99c72f3d2 Reduce memory requirements for regression tests.
This is intended to drop memory usage to a level that AppVeyor test
instances can handle.

This resolves #393.
2016-10-28 11:56:16 -07:00
Jason Evans
eaecaad8ea Periodically purge in memory-intensive integration tests.
This resolves #393.
2016-10-28 11:55:09 -07:00
Jason Evans
2c53faf352 Periodically purge in memory-intensive integration tests.
This resolves #393.
2016-10-28 11:54:56 -07:00
Jason Evans
962a2979e3 Do not (recursively) allocate within tsd_fetch().
Refactor tsd so that tsdn_fetch() does not trigger allocation, since
allocation could cause infinite recursion.

This resolves #458.
2016-10-21 00:27:37 -07:00
Jason Evans
e2bcf037d4 Make dss operations lockless.
Rather than protecting dss operations with a mutex, use atomic
operations.  This has negligible impact on synchronization overhead
during typical dss allocation, but is a substantial improvement for
chunk_in_dss() and the newly added chunk_dss_mergeable(), which can be
called multiple times during chunk deallocations.

This change also has the advantage of avoiding tsd in deallocation paths
associated with purging, which resolves potential deadlocks during
thread exit due to attempted tsd resurrection.

This resolves #425.
2016-10-13 15:33:56 -07:00
Jason Evans
a14712b4b8 Fix decay tests to all adapt to nstime_monotonic(). 2016-10-11 15:49:55 -07:00
Jason Evans
45a5bf6772 Do not advance decay epoch when time goes backwards.
Instead, move the epoch backward in time.  Additionally, add
nstime_monotonic() and use it in debug builds to assert that time only
goes backward if nstime_update() is using a non-monotonic time source.
2016-10-10 22:31:37 -07:00
Jason Evans
f193fd80cf Refactor runs_avail.
Use pszind_t size classes rather than szind_t size classes, and always
reserve space for NPSIZES elements.  This removes unused heaps that are
not multiples of the page size, and adds (currently) unused heaps for
all huge size classes, with the immediate benefit that the size of
arena_t allocations is constant (no longer dependent on chunk size).
2016-10-04 19:48:50 -07:00
Jason Evans
1abb49f09d Implement pz2ind(), pind2sz(), and psz2u().
These compute size classes and indices similarly to size2index(),
index2size() and s2u(), respectively, but using the subset of size
classes that are multiples of the page size.  Note that pszind_t and
szind_t are not interchangeable.
2016-10-04 16:29:19 -07:00
Elliot Ronaghan
50a865e15a Work around a weird pgi bug in test/unit/math.c
pgi fails to compile math.c, reporting that `-INFINITY` in `pt_norm_expected[]`
is a "Non-constant" expression. A simplified version of this failure is:

```c
#include <math.h>

static double inf1, inf2 = INFINITY;  // no complaints
static double inf3 = INFINITY;        // suddenly INFINITY is "Non-constant"

int main() { }
```

```sh
PGC-S-0074-Non-constant expression in initializer (t.c: 4)
```

pgi errors on the declaration of inf3, and will compile fine if that line is
removed. I've reported this bug to pgi, but in the meantime I just switched to
using (DBL_MAX + DBL_MAX) to work around this bug.
2016-09-26 11:08:45 -07:00
Jason Evans
3a9ec67626 Disable junk filling for tests that could otherwise easily OOM. 2016-05-11 00:52:16 -07:00
Jason Evans
c1e00ef2a6 Resolve bootstrapping issues when embedded in FreeBSD libc.
b2c0d6322d (Add witness, a simple online
locking validator.) caused a broad propagation of tsd throughout the
internal API, but tsd_fetch() was designed to fail prior to tsd
bootstrapping.  Fix this by splitting tsd_t into non-nullable tsd_t and
nullable tsdn_t, and modifying all internal APIs that do not critically
rely on tsd to take nullable pointers.  Furthermore, add the
tsd_booted_get() function so that tsdn_fetch() can probe whether tsd
bootstrapping is complete and return NULL if not.  All dangerous
conversions of nullable pointers are tsdn_tsd() calls that assert-fail
on invalid conversion.
2016-05-10 22:51:33 -07:00
Jason Evans
0c12dcabc5 Fix tsd bootstrapping for a0malloc(). 2016-05-07 16:55:36 -07:00
Jason Evans
1eb46ab6e7 Don't test fork() on Windows. 2016-05-03 17:18:34 -07:00
Jason Evans
9aa1543e9c Update mallocx() OOM test to deal with smaller hugemax.
Depending on virtual memory resource limits, it is necessary to attempt
allocating three maximally sized objects to trigger OOM rather than just
two, since the maximum supported size is slightly less than half the
total virtual memory address space.

This fixes a test failure that was introduced by
0c516a00c4 (Make *allocx() size class
overflow behavior defined.).

This resolves #379.
2016-05-03 09:37:54 -07:00
Jason Evans
108c4a11e9 Fix witness/fork() interactions.
Fix witness to clear its list of owned mutexes in the child if
platform-specific malloc_mutex code re-initializes mutexes rather than
unlocking them.
2016-04-26 10:47:22 -07:00
Jason Evans
174c0c3a9c Fix fork()-related lock rank ordering reversals. 2016-04-25 23:16:20 -07:00
Jason Evans
0d970a054e Use separate arena for chunk tests.
This assures that side effects of internal allocation don't impact
tests.
2016-04-25 20:26:03 -07:00
Jason Evans
2fe64d237c Fix arena_reset() test to avoid tcache. 2016-04-25 12:51:17 -07:00
Jason Evans
19ff2cefba Implement the arena.<i>.reset mallctl.
This makes it possible to discard all of an arena's allocations in a
single operation.

This resolves #146.
2016-04-22 15:20:06 -07:00
Jason Evans
1423ee9016 Fix style nits. 2016-04-17 13:44:59 -07:00
Jason Evans
b2c0d6322d Add witness, a simple online locking validator.
This resolves #358.
2016-04-14 02:09:28 -07:00
Jason Evans
bab58ef401 Fix more 64-to-32 conversion warnings. 2016-04-12 12:39:02 -07:00
Jason Evans
96aa67aca8 Clean up char vs. uint8_t in junk filling code.
Consistently use uint8_t rather than char for junk filling code.
2016-04-11 02:26:35 -07:00
Jason Evans
c6a2c39404 Refactor/fix ph.
Refactor ph to support configurable comparison functions.  Use a cpp
macro code generation form equivalent to the rb macros so that pairing
heaps can be used for both run heaps and chunk heaps.

Remove per node parent pointers, and instead use leftmost siblings' prev
pointers to track parents.

Fix multi-pass sibling merging to iterate over intermediate results
using a FIFO, rather than a LIFO.  Use this fixed sibling merging
implementation for both merge phases of the auxiliary twopass algorithm
(first merging the aux list, then replacing the root with its merged
children).  This fixes both degenerate merge behavior and the potential
for deep recursion.

This regression was introduced by
6bafa6678f (Pairing heap).

This resolves #371.
2016-04-11 02:15:42 -07:00
Jason Evans
a3c4193280 Fix a compilation warning in the ph test code. 2016-04-05 16:32:59 -07:00
Chris Peterson
a82070ef5f Add JEMALLOC_ALLOC_JUNK and JEMALLOC_FREE_JUNK macros
Replace hardcoded 0xa5 and 0x5a junk values with JEMALLOC_ALLOC_JUNK and
JEMALLOC_FREE_JUNK macros, respectively.
2016-03-31 11:23:29 -07:00
Jason Evans
ff63dca363 Avoid blindly enabling assertions for header code when testing.
Restructure the test program master header to avoid blindly enabling
assertions.  Prior to this change, assertion code in e.g. arena.h was
always enabled for tests, which could skew performance-related testing.
2016-03-23 16:15:42 -07:00
Jason Evans
f6bd2e5a17 Code formatting fixes. 2016-03-23 16:15:42 -07:00
Jason Evans
22af74e106 Refactor out signed/unsigned comparisons. 2016-03-15 09:40:02 -07:00
Jason Evans
824b947be0 Add (size_t) casts to MALLOCX_ALIGN().
Add (size_t) casts to MALLOCX_ALIGN() macros so that passing the integer
constant 0x80000000 does not cause a compiler warning about invalid
shift amount.

This resolves #354.
2016-03-11 10:11:56 -08:00
Dave Watson
34dca5671f Unittest for pairing heap 2016-03-08 13:48:27 -08:00
Dmitri Smirnov
33184bf698 Fix stack corruption and uninitialized var warning
Stack corruption happens in x64 bit

This resolves #347.
2016-02-29 15:22:53 -08:00
Jason Evans
7d3055432d Fix decay tests for --disable-tcache case. 2016-02-27 23:40:31 -08:00
Jason Evans
3c07f803aa Fix stats.arenas.<i>.[...] for --disable-stats case.
Add missing stats.arenas.<i>.{dss,lg_dirty_mult,decay_time}
initialization.

Fix stats.arenas.<i>.{pactive,pdirty} to read under the protection of
the arena mutex.
2016-02-27 20:40:13 -08:00
Jason Evans
fd4858225b Fix decay tests for --disable-stats case. 2016-02-27 20:38:29 -08:00
Jason Evans
a62e94cabb Remove invalid tests.
Remove invalid tests that were intended to be tests of (hugemax+1) OOM,
for which tests already exist.
2016-02-26 16:27:52 -08:00
Jason Evans
01ecdf32d6 Miscellaneous bitmap refactoring. 2016-02-26 14:21:10 -08:00
Jason Evans
e3195fa4a5 Cast PTRDIFF_MAX to size_t before adding 1.
This fixes compilation warnings regarding integer overflow that were
introduced by 0c516a00c4 (Make *allocx()
size class overflow behavior defined.).
2016-02-25 16:40:24 -08:00
Jason Evans
0c516a00c4 Make *allocx() size class overflow behavior defined.
Limit supported size and alignment to HUGE_MAXCLASS, which in turn is
now limited to be less than PTRDIFF_MAX.

This resolves #278 and #295.
2016-02-25 15:29:49 -08:00
Jason Evans
9e1810ca9d Silence miscellaneous 64-to-32-bit data loss warnings. 2016-02-24 13:03:48 -08:00
Jason Evans
8f683b94a7 Make opt_narenas unsigned rather than size_t. 2016-02-24 13:03:48 -08:00
Dmitri Smirnov
b41a07c31a Fix Windows build issues
This resolves #333.
2016-02-23 18:55:45 -08:00
Dave Watson
2b1fc90b7b Remove rbt_nil
Since this is an intrusive tree, rbt_nil is the whole size of the node
and can be quite large.  For example, miscelm is ~100 bytes.
2016-02-23 18:09:25 -08:00