[8735] New memory allocator for MaNGOS, based on Intel Threading Building Blocks library. Performance gains depend greatly on OS you use!

You should add two libraries into your server binaries: tbb.so/tbbmalloc.so on *nix and tbb(_debug).dll/tbbmalloc(_debug).dll on Windows!!! Define USE_STANDARD_MALLOC while compiling 'framework' project to use OS' default memory allocator! Signed-off-by: Ambal <pogrebniak@gala.net>
2025-12-30 01:37:03 +00:00 · 2009-10-26 00:58:55 +02:00 · 2009-10-26 00:58:55 +02:00 · a2ed351365
commit a2ed351365
parent 9e4b833054
235 changed files with 52785 additions and 432 deletions
--- a/dep/tbb/src/tbbmalloc/MapMemory.h
+++ b/dep/tbb/src/tbbmalloc/MapMemory.h
@ -0,0 +1,101 @@
+/*
+    Copyright 2005-2009 Intel Corporation.  All Rights Reserved.
+
+    This file is part of Threading Building Blocks.
+
+    Threading Building Blocks is free software; you can redistribute it
+    and/or modify it under the terms of the GNU General Public License
+    version 2 as published by the Free Software Foundation.
+
+    Threading Building Blocks is distributed in the hope that it will be
+    useful, but WITHOUT ANY WARRANTY; without even the implied warranty
+    of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with Threading Building Blocks; if not, write to the Free Software
+    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+
+    As a special exception, you may use this file as part of a free software
+    library without restriction.  Specifically, if other files instantiate
+    templates or use macros or inline functions from this file, or you compile
+    this file and link it with other files to produce an executable, this
+    file does not by itself cause the resulting executable to be covered by
+    the GNU General Public License.  This exception does not however
+    invalidate any other reasons why the executable file might be covered by
+    the GNU General Public License.
+*/
+
+#ifndef _itt_shared_malloc_MapMemory_H
+#define _itt_shared_malloc_MapMemory_H
+
+#if __linux__ || __APPLE__ || __sun || __FreeBSD__
+
+#if __sun && !defined(_XPG4_2)
+ // To have void* as mmap's 1st argument
+ #define _XPG4_2 1
+ #define XPG4_WAS_DEFINED 1
+#endif
+
+#include <sys/mman.h>
+
+#if XPG4_WAS_DEFINED
+ #undef _XPG4_2
+ #undef XPG4_WAS_DEFINED
+#endif
+
+#define MEMORY_MAPPING_USES_MALLOC 0
+void* MapMemory (size_t bytes)
+{
+    void* result = 0;
+#ifndef MAP_ANONYMOUS
+// Mac OS* X defines MAP_ANON, which is deprecated in Linux.
+#define MAP_ANONYMOUS MAP_ANON
+#endif /* MAP_ANONYMOUS */
+    result = mmap(result, bytes, (PROT_READ | PROT_WRITE), MAP_PRIVATE|MAP_ANONYMOUS, -1, 0);
+    return result==MAP_FAILED? 0: result;
+}
+
+int UnmapMemory(void *area, size_t bytes)
+{
+    return munmap(area, bytes);
+}
+
+#elif _WIN32 || _WIN64
+#include <windows.h>
+
+#define MEMORY_MAPPING_USES_MALLOC 0
+void* MapMemory (size_t bytes)
+{
+    /* Is VirtualAlloc thread safe? */
+    return VirtualAlloc(NULL, bytes, (MEM_RESERVE | MEM_COMMIT | MEM_TOP_DOWN), PAGE_READWRITE);
+}
+
+int UnmapMemory(void *area, size_t bytes)
+{
+    BOOL result = VirtualFree(area, 0, MEM_RELEASE);
+    return !result;
+}
+
+#else
+#include <stdlib.h>
+
+#define MEMORY_MAPPING_USES_MALLOC 1
+void* MapMemory (size_t bytes)
+{
+    return malloc( bytes );
+}
+
+int UnmapMemory(void *area, size_t bytes)
+{
+    free( area );
+    return 0;
+}
+
+#endif /* OS dependent */
+
+#if MALLOC_CHECK_RECURSION && MEMORY_MAPPING_USES_MALLOC
+#error Impossible to protect against malloc recursion when memory mapping uses malloc.
+#endif
+
+#endif /* _itt_shared_malloc_MapMemory_H */