95 lines
3.2 KiB
C
95 lines
3.2 KiB
C
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/*-
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* Copyright (C) 2009 Facebook, Inc.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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* * Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* * Neither the name of Facebook, Inc. nor the names of its contributors may
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* be used to endorse or promote products derived from this software without
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* specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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*******************************************************************************
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*/
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/*
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* Hyper-threaded CPUs may need a special instruction inside spin loops in
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* order to yield to another virtual CPU.
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*/
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#undef CPU_SPINWAIT
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/*
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* JEMALLOC_DEBUG enables assertions and other sanity checks, and disables
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* inline functions.
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*/
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#undef JEMALLOC_DEBUG
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/* JEMALLOC_STATS enables statistics calculation. */
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#undef JEMALLOC_STATS
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/*
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* JEMALLOC_TINY enables support for tiny objects, which are smaller than one
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* quantum.
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*/
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#undef JEMALLOC_TINY
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/*
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* JEMALLOC_MAG enables a magazine-based thread-specific caching layer for small
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* objects. This makes it possible to allocate/deallocate objects without any
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* locking when the cache is in the steady state.
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*/
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#undef JEMALLOC_MAG
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/*
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* JEMALLOC_BALANCE enables monitoring of arena lock contention and dynamically
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* re-balances arena load if exponentially averaged contention exceeds a
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* certain threshold.
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*/
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#undef JEMALLOC_BALANCE
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/*
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* JEMALLOC_DSS enables use of sbrk(2) to allocate chunks from the data storage
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* segment (DSS).
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*/
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#undef JEMALLOC_DSS
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/* Support memory filling (junk/zero). */
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#undef JEMALLOC_FILL
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/* Support optional abort() on OOM. */
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#undef JEMALLOC_XMALLOC
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/* Support SYSV semantics. */
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#undef JEMALLOC_SYSV
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/* Support lazy locking (avoid locking unless a second thread is launched). */
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#undef JEMALLOC_LAZY_LOCK
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/* Determine page size at run time if defined. */
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#undef DYNAMIC_PAGE_SHIFT
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/* One page is 2^STATIC_PAGE_SHIFT bytes. */
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#undef STATIC_PAGE_SHIFT
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/* TLS is used to map arenas and magazine caches to threads. */
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#undef NO_TLS
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/* sizeof(void *) == 2^SIZEOF_PTR_2POW. */
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#undef SIZEOF_PTR_2POW
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