From cd306d4e650d5280a40b15fe076f41eba081c0a0 Mon Sep 17 00:00:00 2001 From: Chris Wilson Date: Fri, 24 Jul 2015 18:54:11 +0100 Subject: benchmark: Measure allocation time for objects A basic measurement, how fast can we create and populate an object with backing storage? Signed-off-by: Chris Wilson --- benchmarks/gem_create.c | 176 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 176 insertions(+) create mode 100644 benchmarks/gem_create.c (limited to 'benchmarks/gem_create.c') diff --git a/benchmarks/gem_create.c b/benchmarks/gem_create.c new file mode 100644 index 00000000..21e8d86e --- /dev/null +++ b/benchmarks/gem_create.c @@ -0,0 +1,176 @@ +/* + * 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) + +#define LOCAL_I915_EXEC_NO_RELOC (1<<11) +#define LOCAL_I915_EXEC_HANDLE_LUT (1<<12) + +static int __gem_execbuf(int fd, struct drm_i915_gem_execbuffer2 *execbuf) +{ + int err = 0; + if (drmIoctl(fd, DRM_IOCTL_I915_GEM_EXECBUFFER2, execbuf)) + err = -errno; + return err; +} + + +static double elapsed(const struct timespec *start, + const struct timespec *end) +{ + return (end->tv_sec - start->tv_sec) + 1e-9*(end->tv_nsec - start->tv_nsec); +} + +static void make_busy(int fd, uint32_t handle) +{ + struct drm_i915_gem_execbuffer2 execbuf; + struct drm_i915_gem_exec_object2 gem_exec; + + const uint32_t buf[] = {MI_BATCH_BUFFER_END}; + gem_write(fd, handle, 0, buf, sizeof(buf)); + + memset(&gem_exec, 0, sizeof(gem_exec)); + gem_exec.handle = handle; + + memset(&execbuf, 0, sizeof(execbuf)); + execbuf.buffers_ptr = (uintptr_t)&gem_exec; + execbuf.buffer_count = 1; + execbuf.flags |= LOCAL_I915_EXEC_HANDLE_LUT; + execbuf.flags |= LOCAL_I915_EXEC_NO_RELOC; + if (__gem_execbuf(fd, &execbuf)) { + execbuf.flags = 0; + gem_execbuf(fd, &execbuf); + } +} + +int main(int argc, char **argv) +{ + int fd = drm_open_any(); + int size = 0; + int busy = 0; + int reps = 13; + int c, n, s; + + while ((c = getopt (argc, argv, "bs:r:")) != -1) { + switch (c) { + case 's': + size = atoi(optarg); + break; + + case 'r': + reps = atoi(optarg); + if (reps < 1) + reps = 1; + break; + + case 'b': + busy = true; + break; + + default: + break; + } + } + + if (size == 0) { + for (s = 4096; s <= OBJECT_SIZE; s <<= 1) { + igt_stats_t stats; + + igt_stats_init_with_size(&stats, reps); + for (n = 0; n < reps; n++) { + struct timespec start, end; + uint64_t count = 0; + + clock_gettime(CLOCK_MONOTONIC, &start); + do { + for (c = 0; c < 1000; c++) { + uint32_t handle; + + handle = gem_create(fd, s); + gem_set_domain(fd, handle, + I915_GEM_DOMAIN_GTT, + I915_GEM_DOMAIN_GTT); + if (busy) + make_busy(fd, handle); + gem_close(fd, handle); + } + count += c; + clock_gettime(CLOCK_MONOTONIC, &end); + } while (end.tv_sec - start.tv_sec < 2); + + igt_stats_push_float(&stats, count / elapsed(&start, &end)); + } + printf("%f\n", igt_stats_get_trimean(&stats)); + igt_stats_fini(&stats); + } + } else { + for (n = 0; n < reps; n++) { + struct timespec start, end; + uint64_t count = 0; + + clock_gettime(CLOCK_MONOTONIC, &start); + do { + for (c = 0; c < 1000; c++) { + uint32_t handle; + + handle = gem_create(fd, size); + gem_set_domain(fd, handle, + I915_GEM_DOMAIN_GTT, + I915_GEM_DOMAIN_GTT); + if (busy) + make_busy(fd, handle); + gem_close(fd, handle); + } + count += c; + clock_gettime(CLOCK_MONOTONIC, &end); + } while (end.tv_sec - start.tv_sec < 2); + + printf("%f\n", count / elapsed(&start, &end)); + } + } + + return 0; +} -- cgit v1.2.3