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| author | Howard Mao <zhehao.mao@gmail.com> | 2016-11-08 12:43:48 -0800 |
|---|---|---|
| committer | Howard Mao <zhehao.mao@gmail.com> | 2016-11-10 11:39:02 -0800 |
| commit | f27b4fd0045d6a8c438f7676886bb371987bc321 (patch) | |
| tree | b503bf1a546d6d709877d7af5cbb62bfe16c5d67 | |
| parent | 2e288c728cf5b993fce8d1d331803509c6b65d88 (diff) | |
| download | riscv-tests-f27b4fd0045d6a8c438f7676886bb371987bc321.zip riscv-tests-f27b4fd0045d6a8c438f7676886bb371987bc321.tar.gz riscv-tests-f27b4fd0045d6a8c438f7676886bb371987bc321.tar.bz2 | |
fixes to memcpy() benchmarks
| -rw-r--r-- | benchmarks/dma-memcpy/dma_memcpy_main.c | 4 | ||||
| -rw-r--r-- | benchmarks/memcpy/memcpy.c | 16 | ||||
| -rw-r--r-- | benchmarks/memcpy/memcpy_main.c | 4 |
3 files changed, 16 insertions, 8 deletions
diff --git a/benchmarks/dma-memcpy/dma_memcpy_main.c b/benchmarks/dma-memcpy/dma_memcpy_main.c index 820775a..029b22c 100644 --- a/benchmarks/dma-memcpy/dma_memcpy_main.c +++ b/benchmarks/dma-memcpy/dma_memcpy_main.c @@ -3,8 +3,8 @@ #include "util.h" #include "dma_memcpy.h" -#define MAX_SIZE 4 * 4096 -#define START_SIZE 256 +#define MAX_SIZE 256 * 1024 +#define START_SIZE 1024 int a[MAX_SIZE / sizeof(int)]; int b[MAX_SIZE / sizeof(int)]; diff --git a/benchmarks/memcpy/memcpy.c b/benchmarks/memcpy/memcpy.c index b2511d5..37e5821 100644 --- a/benchmarks/memcpy/memcpy.c +++ b/benchmarks/memcpy/memcpy.c @@ -9,9 +9,9 @@ void fill(int *arr, size_t n) } } -#pragma GCC optimize ("unroll-loops") +//#pragma GCC optimize ("unroll-loops") -#define UNROLL 4 +#define UNROLL 8 void fast_memcpy(void *dst, void *src, size_t len) { @@ -23,8 +23,16 @@ void fast_memcpy(void *dst, void *src, size_t len) size_t lenu = ((n / UNROLL) * UNROLL) * sizeof(uintptr_t); while (d < (uintptr_t *)(dst + lenu)) { - for (int i = 0; i < UNROLL; i++) - d[i] = s[i]; + //for (int i = 0; i < UNROLL; i++) + // d[i] = s[i]; + d[0] = s[0]; + d[1] = s[1]; + d[2] = s[2]; + d[3] = s[3]; + d[4] = s[4]; + d[5] = s[5]; + d[6] = s[6]; + d[7] = s[7]; d += UNROLL; s += UNROLL; } diff --git a/benchmarks/memcpy/memcpy_main.c b/benchmarks/memcpy/memcpy_main.c index 430788a..2284530 100644 --- a/benchmarks/memcpy/memcpy_main.c +++ b/benchmarks/memcpy/memcpy_main.c @@ -3,8 +3,8 @@ #include "util.h" #include "memcpy.h" -#define MAX_SIZE 4 * 4096 -#define START_SIZE 256 +#define MAX_SIZE 256 * 1024 +#define START_SIZE 1024 int a[MAX_SIZE / sizeof(int)]; int b[MAX_SIZE / sizeof(int)]; |