2004-06-18 Paolo Carlini <pcarlini@suse.de>
* include/ext/mt_allocator (__mt_alloc<>::_Tune): Add _M_align,
the alignment requested.
(__mt_alloc<>::_Tune::_Tune): Tweak consistently.
(__mt_alloc<>::allocate): Use it instead of sizeof(_Block_record).
(__mt_alloc<>::deallocate): Likewise.
From-SVN: r83372
2004-05-18 Paolo Carlini <pcarlini@suse.de>
* include/ext/mt_allocator.h:(__mt_alloc::allocate): Minor
tweaks.
2004-05-18 Dhruv Matani <dhruvbird@gmx.net>
* include/ext/mt_allocator.h:(__mt_alloc::allocate): Re-write
allocation loop which removes blocks from the global free list
from O(N) to O(1) when the required blocks are <= the number
available.
From-SVN: r81992
2004-05-16 Paolo Carlini <pcarlini@suse.de>
* include/ext/mt_allocator.h (__mt_alloc<>::deallocate):
Consistently update __bin._M_free[0].
(__mt_alloc<>::allocate): When __bin._M_first[0] != NULL use
__bin._M_free[0] to simplify the while loop (i.e., the number
of iterations becomes known at the outset).
From-SVN: r81916
2004-04-05 Paolo Carlini <pcarlini@suse.de>
* include/ext/mt_allocator.h (__mt_alloc<>::deallocate):
The critical section is actually very small, only two assignments.
From-SVN: r80439
2004-04-03 Paolo Carlini <pcarlini@suse.de>
* include/ext/mt_allocator.h (__mt_alloc<>::allocate): Factor out
some duplicated code.
(__mt_alloc<>::_Bin_record): Spare the space of _M_free and _M_used
in the single threaded case.
* testsuite/performance/20_util/allocator/list_sort_search.cc:
Reorder and renumber the tests consistently with the other testfiles.
* testsuite/performance/20_util/allocator/map_mt_find.cc: Ditto.
* testsuite/performance/20_util/allocator/map_thread.cc: Ditto.
* testsuite/performance/20_util/allocator/producer_consumer.cc: Ditto.
From-SVN: r80375
2004-04-02 Paolo Carlini <pcarlini@suse.de>
* include/ext/mt_allocator.h (__mt_alloc<>::deallocate):
Rearrange arithmetic to avoid computing two divisions at
each deallocation.
From-SVN: r80356
2004-04-01 Paolo Carlini <pcarlini@suse.de>
* include/ext/mt_allocator.h (__mt_alloc<>::_S_initialize):
Streamline the second half, wrapping it in a single
'#ifdef __GTHREADS if (__gthread_active_p())' and avoiding
conditionals inside loops.
From-SVN: r80323
2004-03-26 Paolo Carlini <pcarlini@suse.de>
* include/ext/mt_allocator.h (__mt_alloc<>::allocate,
__mt_alloc<>::deallocate): Protect two instances of
block->thread_id with __GTHREADS.
From-SVN: r79986
2004-03-25 Paolo Carlini <pcarlini@suse.de>
* include/ext/mt_allocator.h (__mt_alloc<>::tune):
Add _M_min_bin, the size in bytes of the smallest bin.
(__mt_alloc<>::tune()): Tweak accordingly.
(__mt_alloc<>::tune(size_t, ...)): Likewise.
(__mt_alloc<>::block_record): Change to a union: members next
and thread_id are never used at the same time.
(__mt_alloc<>::allocate): Update consistently.
(__mt_alloc<>::deallocate): Likewise.
(__mt_alloc<>::_S_initialize): Update setups of _S_binmap and
_S_bin_size for the configurable _M_min_size.
From-SVN: r79962
2004-03-06 Benjamin Kosnik <bkoz@redhat.com>
* include/ext/mt_allocator.h (_S_initialize): If
!__GTHREAD_MUTEX_INIT, then initialize _S_thread_freelist_mutex.
From-SVN: r79044
2004-03-06 Benjamin Kosnik <bkoz@redhat.com>
PR libstdc++/12658
* src/locale_init.cc (locale::locale): Lock critical regions with
external mutexes.
(locale::global): Same.
* include/bits/concurrence.h (__glibcxx_mutex_define_initialized):
Add in once bits for cases without __GTHREAD_MUTEX_INIT.
(__glibcxx_mutex_lock): Same.
* config/cpu/generic/atomicity.h: Remove
_GLIBCXX_NEED_GENERIC_MUTEX, use concurrence.h.
* src/misc-inst.cc: Move all locking bits out of this file.
* config/os/hpux/os_defines.h: Remove _GLIBCXX_INST_ATOMICITY_LOCK.
* src/misc-inst.cc: Same.
* config/cpu/hppa/atomicity.h: Same.
* config/linker-map.gnu: Remove types in the signature of atomic
exports, as they may vary.
From-SVN: r79043
2004-02-17 Stefan Olsson <stefan@xapa.se>
* include/ext/mt_allocator.h: Removed the last
pointer. Deallocated blocks are now added to the front of
freelists as proposed by Felix Yen. This gives roughly 10%
performance boost and saves some memory.
* docs/html/ext/mt_allocator.html: Change due to that deallocated
blocks now are added to the front of freelists. The reason to this
approach is also explained.
From-SVN: r78009
2004-02-09 Stefan Olsson <stefan@xapa.se>
* include/ext/mt_allocator.h: thread_id is unused in non threaded
applications and now has a ifdef to remove it completely on
compilers without thread support. Include stdlib.h due to a
compiler warning on getenv().
From-SVN: r77576
2004-01-28 Stefan Olsson <stefan@snon.net>
* include/ext/mt_allocator.h: Replaced all malloc() calls with
operator new(). Added support for the env variable
GLIBCXX_FORCE_NEW (this required the _S_init call to be the first
one in allocate() as well). Fix typos.
From-SVN: r76795
2004-01-19 Stefan Olsson <stefan@snon.net>
* include/ext/mt_allocator.h: If a thread, when it dies, still has
memory on it's freelist this memory is not returned to global
list. Simplification of deallocate so that memory is always
returned to the calling thread id's freelist instead of to
global. Fix typos. Add volatile where appropriate.
From-SVN: r76200
2004-01-15 Stefan Olsson <stefan@snon.net>
* include/ext/mt_allocator.h: Reuse thread id's as soon as
possible by changing the behaviour of thread_freelist to do
push_front when threads die instead of push_back.
From-SVN: r75939
2003-12-23 Benjamin Kosnik <bkoz@redhat.com>
* include/ext/new_allocator.h (new_allocator): Proper allocator class.
(__new_alloc): Delete.
* include/ext/malloc_allocator.h (malloc_allocator): Same.
(__malloc_alloc): Delete.
* include/ext/mt_allocator.h: Same, but weakly.
* include/ext/debug_allocator.h: Convert to the new style.
* include/ext/pool_allocator.h: Use global new and delete directly.
* include/backward/alloc.h: Don't inject malloc_allocator, or
debug_allocator.
* testsuite/ext/allocators.cc: Minimal fixups for usage of new
classes. Comment out tests with __pool_alloc for now.
* testsuite/performance/allocator.cc: Same.
From-SVN: r74965
