From f8628a2c9808fe191c98111a1d58d728f8d20e90 Mon Sep 17 00:00:00 2001 From: Chris Wilson Date: Wed, 22 Jul 2015 16:53:34 +0100 Subject: benchmarks: Add simple mmap benchmarks Signed-off-by: Chris Wilson --- benchmarks/gem_mmap.c | 165 ++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 165 insertions(+) create mode 100644 benchmarks/gem_mmap.c (limited to 'benchmarks/gem_mmap.c') diff --git a/benchmarks/gem_mmap.c b/benchmarks/gem_mmap.c new file mode 100644 index 00000000..7593e12a --- /dev/null +++ b/benchmarks/gem_mmap.c @@ -0,0 +1,165 @@ +/* + * Copyright © 2011-2015 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + * IN THE SOFTWARE. + * + * Authors: + * Chris Wilson + * + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "drm.h" +#include "ioctl_wrappers.h" +#include "drmtest.h" +#include "igt_aux.h" +#include "igt_stats.h" + +#define OBJECT_SIZE (1<<23) + +static uint64_t elapsed(const struct timespec *start, + const struct timespec *end) +{ + return 1000000000ULL*(end->tv_sec - start->tv_sec) + (end->tv_nsec - start->tv_nsec); +} + +int main(int argc, char **argv) +{ + int fd = drm_open_any(); + enum map {CPU, GTT, WC} map = CPU; + enum dir {READ, WRITE, CLEAR} dir = READ; + int tiling = I915_TILING_NONE; + void *buf = malloc(OBJECT_SIZE); + uint32_t handle; + void *ptr, *src, *dst; + int reps = 13; + int c, size; + + while ((c = getopt (argc, argv, "m:d:r:t:")) != -1) { + switch (c) { + case 'm': + if (strcmp(optarg, "cpu") == 0) + map = CPU; + else if (strcmp(optarg, "gtt") == 0) + map = GTT; + else if (strcmp(optarg, "wc") == 0) + map = WC; + else + abort(); + break; + + case 'd': + if (strcmp(optarg, "read") == 0) + dir = READ; + else if (strcmp(optarg, "write") == 0) + dir = WRITE; + else if (strcmp(optarg, "clear") == 0) + dir = CLEAR; + else + abort(); + break; + + case 't': + if (strcmp(optarg, "x") == 0) + tiling = I915_TILING_X; + else if (strcmp(optarg, "y") == 0) + tiling = I915_TILING_Y; + else if (strcmp(optarg, "none") == 0) + tiling = I915_TILING_NONE; + else + abort(); + break; + + case 'r': + reps = atoi(optarg); + if (reps < 1) + reps = 1; + break; + + default: + break; + } + } + + handle = gem_create(fd, OBJECT_SIZE); + switch (map) { + case CPU: + ptr = gem_mmap__cpu(fd, handle, 0, OBJECT_SIZE, PROT_WRITE); + gem_set_domain(fd, handle, I915_GEM_DOMAIN_CPU, I915_GEM_DOMAIN_CPU); + break; + case GTT: + ptr = gem_mmap__gtt(fd, handle, OBJECT_SIZE, PROT_WRITE); + gem_set_domain(fd, handle, I915_GEM_DOMAIN_GTT, I915_GEM_DOMAIN_GTT); + break; + case WC: + ptr = gem_mmap__wc(fd, handle, 0, OBJECT_SIZE, PROT_WRITE); + gem_set_domain(fd, handle, I915_GEM_DOMAIN_GTT, I915_GEM_DOMAIN_GTT); + break; + default: + abort(); + } + + gem_set_tiling(fd, handle, tiling, 512); + + if (dir == READ) { + src = ptr; + dst = buf; + } else { + src = buf; + dst = ptr; + } + + for (size = 1; size <= OBJECT_SIZE; size <<= 1) { + igt_stats_t stats; + int n; + + igt_stats_init_with_size(&stats, reps); + + for (n = 0; n < reps; n++) { + struct timespec start, end; + + clock_gettime(CLOCK_MONOTONIC, &start); + if (dir == CLEAR) + memset(dst, 0, size); + else + memcpy(dst, src, size); + clock_gettime(CLOCK_MONOTONIC, &end); + + igt_stats_push(&stats, elapsed(&start, &end)); + } + + printf("%7.3f\n", igt_stats_get_trimean(&stats)/1000); + igt_stats_fini(&stats); + } + + return 0; +} -- cgit v1.2.3