git/compat/nedmalloc/nedmalloc.c, branch v2.3.4

compat/nedmalloc: Fix some sparse warnings

2013-04-28T19:24:48Z

Sparse issues many "Using plain integer as NULL pointer" warnings while checking nedmalloc.c (at least 98 such warnings before giving up due to "too many warnings"). In addition, sparse issues some "non-ANSI function declaration" type warnings for the symbols 'win32_getcurrentthreadid', 'malloc_stats' and 'malloc_footprint'. In order to suppress the NULL pointer warnings, rather than replace all uses of '0' as a null pointer representation with NULL, we add -Wno-non-pointer-null to SPARSE_FLAGS while checking nedmalloc.c. In order to suppress the "non-ANSI function declaration" warnings, we simply include the missing 'empty parameter list' prototype (void) in the function declarations. Signed-off-by: Ramsay Jones Signed-off-by: Junio C Hamano

nedmalloc: Fix a compile warning (exposed as error) with GCC 4.7.2

2012-12-12T06:10:22Z

On MinGW, GCC 4.7.2 complains about operation on 'p->m[end]' may be undefined Fix this by replacing the faulty lines with those of 69825ca from https://github.com/ned14/nedmalloc/blob/master/nedmalloc.c Signed-off-by: Sebastian Schuberth Signed-off-by: Junio C Hamano

Fix warnings in nedmalloc when compiling with GCC 4.4.0

2009-06-08T16:43:37Z

Nedmalloc's source code has a cute #define construct to avoid inserting an if() statement, because that might interact badly with enclosing if() statements. However, GCC > 4 complains with a "warning: value computed is not used". So we cast the result to "void". GCC also does not understand the Visual C++ specific pragmas, so we need to disable them for MinGW. We need to include malloc.h on Windows even if we happen to compile the stuff as a MinGW program. Otherwise the function declaration of alloca() is missing. Signed-off-by: Johannes Schindelin Signed-off-by: Junio C Hamano

Add custom memory allocator to MinGW and MacOS builds

2009-06-01T07:27:39Z

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