diff options
| author | Florian Schmaus <flow@cs.fau.de> | 2019-08-13 16:23:35 +0200 |
|---|---|---|
| committer | Florian Schmaus <flow@cs.fau.de> | 2019-08-13 16:23:35 +0200 |
| commit | 8cb627ae2d4790b3feefd085b28e059fce9c5bad (patch) | |
| tree | 16b7a451534e24c4c4f59132adc7ddbcfd048cb4 | |
| parent | dd5973823b4af5f73d03a6dd3d00f0c073871eaf (diff) | |
| download | allocbench-8cb627ae2d4790b3feefd085b28e059fce9c5bad.tar.gz allocbench-8cb627ae2d4790b3feefd085b28e059fce9c5bad.zip | |
Use unlikely in bumpptr alloctor
| -rw-r--r-- | src/bumpptr_alloc.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/src/bumpptr_alloc.c b/src/bumpptr_alloc.c index aac5936..3985904 100644 --- a/src/bumpptr_alloc.c +++ b/src/bumpptr_alloc.c @@ -12,6 +12,8 @@ #define MEMSIZE 1024*4*1024*1024l #endif +#define unlikely(x) __builtin_expect((x),0) + #ifdef __cplusplus extern "C" { #endif @@ -22,7 +24,7 @@ __thread void* mem_end = NULL; __thread uintptr_t ptr = 0; void* malloc(size_t size) { - if(mem_start == NULL) { + if (unlikely(mem_start == NULL)) { mem_start = mmap(NULL, MEMSIZE, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0); if(mem_start == MAP_FAILED) { perror("mmap"); @@ -159,6 +161,7 @@ void* aligned_alloc(size_t alignment, size_t size) int malloc_stats() { fprintf(stderr, "Bump pointer allocator by muhq\n"); fprintf(stderr, "Memsize: %zu, start address: %p, bump pointer %p\n", MEMSIZE, mem_start, ptr); + return 0; } #ifdef __cplusplus |