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Code Issues Releases Wiki Activity

benchmarks: Remove gem_wait

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Superseded by gem_latency.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
This commit is contained in:
Chris Wilson 2015-12-18 20:51:57 +00:00
parent c9da0b5221
commit 39bad606c5
4 changed files with 0 additions and 308 deletions
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1
benchmarks/.gitignore vendored
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@ -9,7 +9,6 @@ gem_mmap
gem_prw
gem_set_domain
gem_userptr_benchmark
gem_wait
intel_upload_blit_large
intel_upload_blit_large_gtt
intel_upload_blit_large_map

3
benchmarks/Makefile.am
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@ -9,9 +9,6 @@ benchmarks_LTLIBRARIES = gem_exec_tracer.la
gem_exec_tracer_la_LDFLAGS = -module -avoid-version -no-undefined
gem_exec_tracer_la_LIBADD = -ldl
gem_wait_CFLAGS = $(AM_CFLAGS) $(THREAD_CFLAGS)
gem_wait_LDADD = $(LDADD) -lpthread
gem_latency_CFLAGS = $(AM_CFLAGS) $(THREAD_CFLAGS)
gem_latency_LDADD = $(LDADD) -lpthread

1
benchmarks/Makefile.sources
View File

@ -16,6 +16,5 @@ benchmarks_PROGRAMS = \
gem_prw \
gem_set_domain \
gem_userptr_benchmark \
gem_wait \
kms_vblank \
$(NULL)

303
benchmarks/gem_wait.c
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@ -1,303 +0,0 @@
/*
* 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>
*
*/
#include "igt.h"
#include <unistd.h>
#include <stdlib.h>
#include <stdint.h>
#include <stdio.h>
#include <string.h>
#include <fcntl.h>
#include <inttypes.h>
#include <pthread.h>
#include <signal.h>
#include <errno.h>
#include <sys/stat.h>
#include <sys/ioctl.h>
#include <sys/time.h>
#include <time.h>
#include <math.h>
#include "drm.h"
#define LOCAL_I915_EXEC_NO_RELOC (1<<11)
#define LOCAL_I915_EXEC_HANDLE_LUT (1<<12)
#define COPY_BLT_CMD (2<<29|0x53<<22|0x6)
#define BLT_WRITE_ALPHA (1<<21)
#define BLT_WRITE_RGB (1<<20)
#define BLT_SRC_TILED (1<<15)
#define BLT_DST_TILED (1<<11)
#define OBJECT 1024*1024
static int has_64bit_reloc;
static int gem_linear_blt(int fd,
uint32_t *batch,
int offset,
uint32_t src,
uint32_t dst,
uint32_t length,
struct drm_i915_gem_relocation_entry *reloc)
{
uint32_t *b = batch + offset/4;
int height = length / (16 * 1024);
igt_assert_lte(height, 1 << 16);
if (height) {
int i = 0;
b[i++] = COPY_BLT_CMD | BLT_WRITE_ALPHA | BLT_WRITE_RGB;
if (has_64bit_reloc)
b[i-1]+=2;
b[i++] = 0xcc << 16 | 1 << 25 | 1 << 24 | (16*1024);
b[i++] = 0;
b[i++] = height << 16 | (4*1024);
b[i++] = 0;
reloc->offset = (b-batch+4) * sizeof(uint32_t);
reloc->delta = 0;
reloc->target_handle = dst;
reloc->read_domains = I915_GEM_DOMAIN_RENDER;
reloc->write_domain = I915_GEM_DOMAIN_RENDER;
reloc->presumed_offset = 0;
reloc++;
if (has_64bit_reloc)
b[i++] = 0; /* FIXME */
b[i++] = 0;
b[i++] = 16*1024;
b[i++] = 0;
reloc->offset = (b-batch+7) * sizeof(uint32_t);
if (has_64bit_reloc)
reloc->offset += sizeof(uint32_t);
reloc->delta = 0;
reloc->target_handle = src;
reloc->read_domains = I915_GEM_DOMAIN_RENDER;
reloc->write_domain = 0;
reloc->presumed_offset = 0;
reloc++;
if (has_64bit_reloc)
b[i++] = 0; /* FIXME */
b += i;
length -= height * 16*1024;
}
if (length) {
int i = 0;
b[i++] = COPY_BLT_CMD | BLT_WRITE_ALPHA | BLT_WRITE_RGB;
if (has_64bit_reloc)
b[i-1]+=2;
b[i++] = 0xcc << 16 | 1 << 25 | 1 << 24 | (16*1024);
b[i++] = height << 16;
b[i++] = (1+height) << 16 | (length / 4);
b[i++] = 0;
reloc->offset = (b-batch+4) * sizeof(uint32_t);
reloc->delta = 0;
reloc->target_handle = dst;
reloc->read_domains = I915_GEM_DOMAIN_RENDER;
reloc->write_domain = I915_GEM_DOMAIN_RENDER;
reloc->presumed_offset = 0;
reloc++;
if (has_64bit_reloc)
b[i++] = 0; /* FIXME */
b[i++] = height << 16;
b[i++] = 16*1024;
b[i++] = 0;
reloc->offset = (b-batch+7) * sizeof(uint32_t);
if (has_64bit_reloc)
reloc->offset += sizeof(uint32_t);
reloc->delta = 0;
reloc->target_handle = src;
reloc->read_domains = I915_GEM_DOMAIN_RENDER;
reloc->write_domain = 0;
reloc->presumed_offset = 0;
reloc++;
if (has_64bit_reloc)
b[i++] = 0; /* FIXME */
b += i;
}
b[0] = MI_BATCH_BUFFER_END;
b[1] = 0;
return (b+2 - batch) * sizeof(uint32_t);
}
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 void waiter(int child)
{
struct drm_i915_gem_execbuffer2 execbuf;
struct drm_i915_gem_exec_object2 exec[3];
struct drm_i915_gem_relocation_entry reloc[2*4096/32];
uint32_t *buf, handle, src, dst;
int fd, len, gen, nreloc, last = 0;
int ring;
fd = drm_open_driver(DRIVER_INTEL);
handle = gem_create(fd, 4096);
buf = gem_mmap__cpu(fd, handle, 0, 4096, PROT_WRITE);
gen = intel_gen(intel_get_drm_devid(fd));
has_64bit_reloc = gen >= 8;
src = gem_create(fd, OBJECT);
dst = gem_create(fd, OBJECT);
len = gem_linear_blt(fd, buf, 0, 0, 1, OBJECT, reloc);
memset(exec, 0, sizeof(exec));
exec[0].handle = src;
exec[1].handle = dst;
exec[2].handle = handle;
if (has_64bit_reloc)
exec[2].relocation_count = len > 56 ? 4 : 2;
else
exec[2].relocation_count = len > 40 ? 4 : 2;
exec[2].relocs_ptr = (uintptr_t)reloc;
ring = 0;
if (gen >= 6)
ring = I915_EXEC_BLT;
memset(&execbuf, 0, sizeof(execbuf));
execbuf.buffers_ptr = (uintptr_t)exec;
execbuf.buffer_count = 3;
execbuf.batch_len = len;
execbuf.flags = ring;
execbuf.flags |= LOCAL_I915_EXEC_HANDLE_LUT;
execbuf.flags |= LOCAL_I915_EXEC_NO_RELOC;
if (__gem_execbuf(fd, &execbuf)) {
gem_set_domain(fd, handle, I915_GEM_DOMAIN_CPU, I915_GEM_DOMAIN_CPU);
len = gem_linear_blt(fd, buf, 0, src, dst, OBJECT, reloc);
igt_assert(len == execbuf.batch_len);
execbuf.flags = ring;
gem_execbuf(fd, &execbuf);
}
gem_sync(fd, handle);
if (execbuf.flags & LOCAL_I915_EXEC_HANDLE_LUT) {
src = 0;
dst = 1;
}
nreloc = exec[2].relocation_count;
while (execbuf.batch_len + len <= 4096) {
last = len - 8;
len = gem_linear_blt(fd, buf, len - 8,
src, dst, OBJECT,
reloc + exec[2].relocation_count);
exec[2].relocation_count += nreloc;
}
munmap(buf, 4096);
execbuf.batch_len = len;
gem_execbuf(fd, &execbuf);
usleep(0);
execbuf.batch_len = len - last;
execbuf.batch_start_offset = last;
for (int loop = 0; loop < 16*1024; loop++)
gem_execbuf(fd, &execbuf);
usleep(0);
execbuf.batch_len = len;
execbuf.batch_start_offset = 0;
gem_execbuf(fd, &execbuf);
gem_sync(fd, handle);
close(fd);
}
static volatile int done;
static void *thread(void *arg)
{
volatile uint64_t *c = arg;
while (!done)
++*c;
return NULL;
}
static int run(int num_waiters)
{
int num_cpus = sysconf(_SC_NPROCESSORS_ONLN);
pthread_t *threads = calloc(num_cpus, sizeof(pthread_t));
uint64_t *counters = calloc(num_cpus, 8*sizeof(uint64_t));
uint64_t count;
for (int n = 0; n < num_cpus; n++)
pthread_create(&threads[n], NULL, thread, &counters[8*n]);
igt_fork(child, num_waiters)
waiter(child);
igt_waitchildren();
done = 1;
for (int n = 0; n < num_cpus; n++)
pthread_join(threads[n], NULL);
count = 0;
for (int n = 0; n < num_cpus; n++)
count += counters[8*n];
printf("%llu\n", (long long unsigned)count);
return 0;
}
int main(int argc, char **argv)
{
int num_waiters = 128;
int c;
while ((c = getopt (argc, argv, "w:")) != -1) {
switch (c) {
case 'w':
num_waiters = atoi(optarg);
if (num_waiters < 1)
num_waiters = 1;
break;
}
}
return run(num_waiters);
}