From f0ed8226c9c65f2a324610258418258229e77fbe Mon Sep 17 00:00:00 2001 From: Marius Storm-Olsen Date: Sun, 31 May 2009 18:15:23 +0200 Subject: Add custom memory allocator to MinGW and MacOS builds The standard allocator on Windows is pretty bad prior to Windows Vista, and nedmalloc is better than the modified dlmalloc provided with newer versions of the MinGW libc. NedMalloc stats in Git ---------------------- All results are the best result out of 3 runs. The benchmarks have been done on different hardware, so the repack times are not comparable. These benchmarks are all based on 'git repack -adf' on the Linux kernel. XP ----------------------------------------------- MinGW Threads Total Time Speed ----------------------------------------------- 3.4.2 (1T) 00:12:28.422 3.4.2 + nedmalloc (1T) 00:07:25.437 1.68x 3.4.5 (1T) 00:12:20.718 3.4.5 + nedmalloc (1T) 00:07:24.809 1.67x 4.3.3-tdm (1T) 00:12:01.843 4.3.3-tdm + nedmalloc (1T) 00:07:16.468 1.65x 4.3.3-tdm (2T) 00:07:35.062 4.3.3-tdm + nedmalloc (2T) 00:04:57.874 1.54x Vista ----------------------------------------------- MinGW Threads Total Time Speed ----------------------------------------------- 4.3.3-tdm (1T) 00:07:40.844 4.3.3-tdm + nedmalloc (1T) 00:07:17.548 1.05x 4.3.3-tdm (2T) 00:05:33.746 4.3.3-tdm + nedmalloc (2T) 00:05:27.334 1.02x Mac Mini ----------------------------------------------- GCC Threads Total Time Speed ----------------------------------------------- i686-darwin9-4.0.1 (2T) 00:09:57.346 i686-darwin9-4.0.1+ned (2T) 00:08:51.072 1.12x Signed-off-by: Marius Storm-Olsen Signed-off-by: Steffen Prohaska Signed-off-by: Junio C Hamano --- Makefile | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'Makefile') diff --git a/Makefile b/Makefile index 107015a598..c718ec7af2 100644 --- a/Makefile +++ b/Makefile @@ -178,6 +178,9 @@ all:: # # Define NO_CROSS_DIRECTORY_HARDLINKS if you plan to distribute the installed # programs as a tar, where bin/ and libexec/ might be on different file systems. +# +# Define USE_NED_ALLOCATOR if you want to replace the platforms default +# memory allocators with the nedmalloc allocator written by Niall Douglas. GIT-VERSION-FILE: .FORCE-GIT-VERSION-FILE @$(SHELL_PATH) ./GIT-VERSION-GEN @@ -844,6 +847,7 @@ ifneq (,$(findstring MINGW,$(uname_S))) NO_ST_BLOCKS_IN_STRUCT_STAT = YesPlease NO_NSEC = YesPlease USE_WIN32_MMAP = YesPlease + USE_NED_ALLOCATOR = YesPlease UNRELIABLE_FSTAT = UnfortunatelyYes OBJECT_CREATION_USES_RENAMES = UnfortunatelyNeedsTo COMPAT_CFLAGS += -D__USE_MINGW_ACCESS -DNOGDI -Icompat -Icompat/regex -Icompat/fnmatch @@ -1130,6 +1134,11 @@ ifdef UNRELIABLE_FSTAT BASIC_CFLAGS += -DUNRELIABLE_FSTAT endif +ifdef USE_NED_ALLOCATOR + COMPAT_CFLAGS += -DUSE_NED_ALLOCATOR -DOVERRIDE_STRDUP -DNDEBUG -DREPLACE_SYSTEM_ALLOCATOR -Icompat/nedmalloc + COMPAT_OBJS += compat/nedmalloc/nedmalloc.o +endif + ifeq ($(TCLTK_PATH),) NO_TCLTK=NoThanks endif -- cgit v1.2.1