| /* |
| * 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 <chris@chris-wilson.co.uk> |
| * |
| */ |
| |
| #include <unistd.h> |
| #include <stdlib.h> |
| #include <stdint.h> |
| #include <stdio.h> |
| #include <string.h> |
| #include <fcntl.h> |
| #include <inttypes.h> |
| #include <errno.h> |
| #include <sys/stat.h> |
| #include <sys/ioctl.h> |
| #include <sys/time.h> |
| #include <time.h> |
| |
| #include "drm.h" |
| #include "drmtest.h" |
| #include "i915/gem_create.h" |
| #include "igt_aux.h" |
| #include "igt_stats.h" |
| #include "intel_reg.h" |
| #include "ioctl_wrappers.h" |
| |
| #define OBJECT_SIZE (1<<23) |
| |
| 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 |= I915_EXEC_HANDLE_LUT; |
| execbuf.flags |= 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_driver(DRIVER_INTEL); |
| int size = 0; |
| int busy = 0; |
| int reps = 13; |
| int ncpus = 1; |
| int c, n, s; |
| |
| while ((c = getopt (argc, argv, "bs:r:f")) != -1) { |
| switch (c) { |
| case 's': |
| size = atoi(optarg); |
| break; |
| |
| case 'r': |
| reps = atoi(optarg); |
| if (reps < 1) |
| reps = 1; |
| break; |
| |
| case 'f': |
| ncpus = sysconf(_SC_NPROCESSORS_ONLN); |
| 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 { |
| double *shared; |
| |
| shared = mmap(0, 4096, PROT_WRITE, MAP_SHARED | MAP_ANON, -1, 0); |
| for (n = 0; n < reps; n++) { |
| memset(shared, 0, 4096); |
| |
| igt_fork(child, ncpus) { |
| 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); |
| |
| shared[child] = count / elapsed(&start, &end); |
| } |
| igt_waitchildren(); |
| |
| for (int child = 0; child < ncpus; child++) |
| shared[ncpus] += shared[child]; |
| |
| printf("%7.3f\n", shared[ncpus]); |
| } |
| } |
| |
| return 0; |
| } |