diff options
| -rw-r--r-- | benchmarks/Makefile.sources | 1 | ||||
| -rw-r--r-- | benchmarks/ezbench.d/gem_exec_fault.test | 22 | ||||
| -rw-r--r-- | benchmarks/gem_exec_fault.c | 198 |
3 files changed, 221 insertions, 0 deletions
diff --git a/benchmarks/Makefile.sources b/benchmarks/Makefile.sources index 81607a56..bc4f2b52 100644 --- a/benchmarks/Makefile.sources +++ b/benchmarks/Makefile.sources @@ -8,6 +8,7 @@ benchmarks_PROGRAMS = \ gem_blt \ gem_create \ gem_exec_ctx \ + gem_exec_fault \ gem_exec_nop \ gem_exec_reloc \ gem_exec_trace \ diff --git a/benchmarks/ezbench.d/gem_exec_fault.test b/benchmarks/ezbench.d/gem_exec_fault.test new file mode 100644 index 00000000..e9f2fcdd --- /dev/null +++ b/benchmarks/ezbench.d/gem_exec_fault.test @@ -0,0 +1,22 @@ +[ -e $IGT_BENCHMARKS/gem_exec_fault ] || return 1 +sudo -n true || return 1 + +ring=rcs # rcs bcs vcs vecs all +while read x size; do + name="gem:exec:fault:$size" + test_name="$test_name $name" + eval "${name}_run() { sudo $IGT_BENCHMARKS/gem_exec_fault -s $x -e $ring -r \$1 ; }" + + name="gem:exec:fault:$size:forked" + test_name="$test_name $name" + eval "${name}_run() { sudo $IGT_BENCHMARKS/gem_exec_fault -f -s $x -e $ring -r \$1 ; }" +done<<SIZES +4096 4KiB +65536 64KiB +1048576 1MiB +16777216 16MiB +268435456 256MiB +SIZES + +test_exec_time=3 +test_invert=1 diff --git a/benchmarks/gem_exec_fault.c b/benchmarks/gem_exec_fault.c new file mode 100644 index 00000000..d23db3ba --- /dev/null +++ b/benchmarks/gem_exec_fault.c @@ -0,0 +1,198 @@ +/* + * Copyright © 2011 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> + * + */ + +/* Measure the time it to takes to bind/unbind objects from the ppGTT */ + +#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 "ioctl_wrappers.h" +#include "drmtest.h" +#include "intel_io.h" +#include "igt_stats.h" + +#define LOCAL_I915_EXEC_NO_RELOC (1<<11) +#define LOCAL_I915_EXEC_HANDLE_LUT (1<<12) + +#define LOCAL_I915_EXEC_BSD_SHIFT (13) +#define LOCAL_I915_EXEC_BSD_MASK (3 << LOCAL_I915_EXEC_BSD_SHIFT) + +#define ENGINE_FLAGS (I915_EXEC_RING_MASK | LOCAL_I915_EXEC_BSD_MASK) + +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 uint32_t batch(int fd, int size) +{ + const uint32_t buf[] = {MI_BATCH_BUFFER_END}; + uint32_t handle = gem_create(fd, size); + gem_write(fd, handle, 0, buf, sizeof(buf)); + return handle; +} + +static int loop(int size, unsigned ring, int reps, int ncpus, unsigned flags) +{ + struct drm_i915_gem_execbuffer2 execbuf; + struct drm_i915_gem_exec_object2 obj; + unsigned engines[16]; + unsigned nengine; + double *shared; + int fd; + + shared = mmap(0, 4096, PROT_WRITE, MAP_SHARED | MAP_ANON, -1, 0); + + fd = drm_open_driver(DRIVER_INTEL); + + memset(&obj, 0, sizeof(obj)); + obj.handle = batch(fd, size); + + memset(&execbuf, 0, sizeof(execbuf)); + execbuf.buffers_ptr = (uintptr_t)&obj; + 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; + if (__gem_execbuf(fd, &execbuf)) + return 77; + } + gem_close(fd, obj.handle); + + nengine = 0; + if (ring == -1) { + for (ring = 1; ring < 16; ring++) { + execbuf.flags &= ~ENGINE_FLAGS; + execbuf.flags |= ring; + if (__gem_execbuf(fd, &execbuf) == 0) + engines[nengine++] = ring; + } + } else + engines[nengine++] = ring; + + while (reps--) { + memset(shared, 0, 4096); + + igt_fork(child, ncpus) { + struct timespec start, end; + unsigned count = 0; + + obj.handle = batch(fd, size); + + clock_gettime(CLOCK_MONOTONIC, &start); + do { + for (int inner = 0; inner < 1024; inner++) { + execbuf.flags &= ~ENGINE_FLAGS; + execbuf.flags |= engines[count++ % nengine]; + /* fault in */ + gem_execbuf(fd, &execbuf); + + /* fault out */ + obj.alignment = 1ull << 63; + __gem_execbuf(fd, &execbuf); + } + + clock_gettime(CLOCK_MONOTONIC, &end); + } while (elapsed(&start, &end) < 2.); + + gem_sync(fd, obj.handle); + clock_gettime(CLOCK_MONOTONIC, &end); + shared[child] = 1e6*elapsed(&start, &end) / count / 2; + + gem_close(fd, obj.handle); + } + igt_waitchildren(); + + for (int child = 0; child < ncpus; child++) + shared[ncpus] += shared[child]; + printf("%7.3f\n", shared[ncpus] / ncpus); + } + return 0; +} + +int main(int argc, char **argv) +{ + unsigned ring = I915_EXEC_RENDER; + unsigned flags = 0; + int size = 4096; + int reps = 1; + int ncpus = 1; + int c; + + while ((c = getopt (argc, argv, "e:r:s:f")) != -1) { + switch (c) { + case 'e': + if (strcmp(optarg, "rcs") == 0) + ring = I915_EXEC_RENDER; + else if (strcmp(optarg, "vcs") == 0) + ring = I915_EXEC_BSD; + else if (strcmp(optarg, "bcs") == 0) + ring = I915_EXEC_BLT; + else if (strcmp(optarg, "vecs") == 0) + ring = I915_EXEC_VEBOX; + else if (strcmp(optarg, "all") == 0) + ring = -1; + else + ring = atoi(optarg); + break; + + case 'r': + reps = atoi(optarg); + if (reps < 1) + reps = 1; + break; + + case 'f': + ncpus = sysconf(_SC_NPROCESSORS_ONLN); + break; + + case 's': + size = atoi(optarg); + if (size < 4096) + size = 4096; + break; + + default: + break; + } + } + + return loop(size, ring, reps, ncpus, flags); +} |