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https://github.com/tiagovignatti/intel-gpu-tools.git
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overlay: Parse gem objects
Condense the information and begin graphing it. Remaining todo for memory is to measure bind/evict flux, and perhaps clflush. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
This commit is contained in:
Chris Wilson
parent
de2c97b27f
commit
e1ed5606c6
@ -1,19 +1,134 @@
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#include <unistd.h>
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#include <fcntl.h>
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#include <errno.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "gem-objects.h"
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int gem_objects_update(char *buf, int buflen)
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/* /sys/kernel/debug/dri/0/i915_gem_objects:
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* 46 objects, 20107264 bytes
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* 42 [42] objects, 15863808 [15863808] bytes in gtt
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* 0 [0] active objects, 0 [0] bytes
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* 42 [42] inactive objects, 15863808 [15863808] bytes
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* 0 unbound objects, 0 bytes
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* 3 purgeable objects, 4456448 bytes
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* 30 pinned mappable objects, 3821568 bytes
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* 1 fault mappable objects, 3145728 bytes
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* 2145386496 [536870912] gtt total
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*
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* Xorg: 35 objects, 16347136 bytes (0 active, 12103680 inactive, 0 unbound)
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*/
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int gem_objects_init(struct gem_objects *obj)
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{
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int fd, len = -1;
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char buf[8192], *b;
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int fd, len;
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memset(obj, 0, sizeof(*obj));
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fd = open("/sys/kernel/debug/dri/0/i915_gem_objects", 0);
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if (fd >= 0) {
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len = read(fd, buf, buflen-1);
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if (len >= 0)
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buf[len] = '\0';
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close(fd);
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if (fd < 0)
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return errno;
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len = read(fd, buf, sizeof(buf)-1);
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close(fd);
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if (len < 0)
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return EIO;
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b = strstr(buf, "gtt total");
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if (b == NULL)
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return EIO;
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while (*b != '\n')
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b--;
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sscanf(b, "%ld [%ld]",
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&obj->max_gtt, &obj->max_aperture);
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return 0;
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}
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static void insert_sorted(struct gem_objects *obj,
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struct gem_objects_comm *comm)
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{
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struct gem_objects_comm *next, **prev;
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for (prev = &obj->comm; (next = *prev) != NULL; prev = &next->next)
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if (comm->bytes > next->bytes)
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break;
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comm->next = *prev;
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*prev = comm;
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}
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int gem_objects_update(struct gem_objects *obj)
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{
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char buf[8192], *b;
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struct gem_objects_comm *comm;
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struct gem_objects_comm *freed;
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int fd, len, ret;
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freed = obj->comm;
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obj->comm = NULL;
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fd = open("/sys/kernel/debug/dri/0/i915_gem_objects", 0);
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if (fd < 0) {
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ret = errno;
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goto done;
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}
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len = read(fd, buf, sizeof(buf)-1);
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close(fd);
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if (len < 0) {
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ret = EIO;
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goto done;
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}
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return len;
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buf[len] = '\0';
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while (buf[--len] == '\n')
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buf[len] = '\0';
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b = buf;
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sscanf(b, "%d objects, %ld bytes",
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&obj->total_count, &obj->total_bytes);
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b = strchr(b, '\n');
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sscanf(b, "%*d [%*d] objects, %ld [%ld] bytes in gtt",
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&obj->total_gtt, &obj->total_aperture);
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ret = 0;
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b = strchr(b, ':');
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if (b == NULL)
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goto done;
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while (*b != '\n')
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b--;
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do {
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comm = freed;
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if (comm)
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freed = comm->next;
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else
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comm = malloc(sizeof(*comm));
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if (comm == NULL)
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break;
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/* Xorg: 35 objects, 16347136 bytes (0 active, 12103680 inactive, 0 unbound) */
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sscanf(++b, "%256s %u objects, %lu bytes",
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comm->name, &comm->count, &comm->bytes);
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insert_sorted(obj, comm);
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} while ((b = strchr(b, '\n')) != NULL);
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done:
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while (freed) {
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comm = freed;
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freed = comm->next;
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free(comm);
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}
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return ret;
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}
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@ -1 +1,17 @@
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int gem_objects_update(char *buf, int buflen);
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#include <stdint.h>
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struct gem_objects {
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uint64_t total_bytes;
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uint32_t total_count;
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uint64_t total_gtt, total_aperture;
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uint64_t max_gtt, max_aperture;
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struct gem_objects_comm {
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struct gem_objects_comm *next;
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char name[256];
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uint64_t bytes;
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uint32_t count;
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} *comm;
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};
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int gem_objects_init(struct gem_objects *obj);
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int gem_objects_update(struct gem_objects *obj);
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@ -435,33 +435,76 @@ static void show_gpu_freq(struct overlay_context *ctx, struct overlay_gpu_freq *
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ctx->last_y += 112;
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}
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static void show_gem_objects(struct overlay_context *ctx)
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{
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char gem_objects[1024], *s, *t, *end;
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int len, y;
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struct overlay_gem_objects {
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struct gem_objects gem_objects;
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struct chart aperture;
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struct chart gtt;
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int error;
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};
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len = gem_objects_update(gem_objects, sizeof(gem_objects));
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if (len <= 0)
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static void init_gem_objects(struct overlay_gem_objects *go,
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cairo_surface_t *surface)
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{
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go->error = gem_objects_init(&go->gem_objects);
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if (go->error)
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return;
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y = ctx->last_y + 18;
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chart_init(&go->aperture, "aperture", 120);
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chart_set_size(&go->aperture,
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cairo_image_surface_get_width(surface)-24,
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100);
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chart_set_stroke_rgba(&go->aperture, 0.75, 0.25, 0.50, 1.);
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chart_set_mode(&go->aperture, CHART_STROKE);
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chart_set_range(&go->aperture, 0, go->gem_objects.max_gtt);
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s = gem_objects;
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end = s + len - 1;
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while (s < end) {
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t = strchr(s, '\n');
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if (t == NULL)
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t = end;
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*t = '\0';
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chart_init(&go->gtt, "gtt", 120);
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chart_set_size(&go->gtt,
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cairo_image_surface_get_width(surface)-24,
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100);
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chart_set_fill_rgba(&go->gtt, 0.25, 0.75, 0.50, 1.);
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chart_set_mode(&go->gtt, CHART_FILL);
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chart_set_range(&go->gtt, 0, go->gem_objects.max_gtt);
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}
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static void show_gem_objects(struct overlay_context *ctx, struct overlay_gem_objects *go)
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{
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struct gem_objects_comm *comm;
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char buf[160];
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int y;
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if (go->error == 0)
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go->error = gem_objects_update(&go->gem_objects);
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if (go->error)
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return;
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chart_add_sample(&go->gtt, go->gem_objects.total_gtt);
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chart_add_sample(&go->aperture, go->gem_objects.total_aperture);
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y = ctx->last_y + 6;
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chart_set_position(&go->gtt, 12, y);
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chart_set_position(&go->aperture, 12, y);
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chart_draw(&go->gtt, ctx->cr);
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chart_draw(&go->aperture, ctx->cr);
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sprintf(buf, "Total: %ld bytes, %d objects",
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go->gem_objects.total_bytes, go->gem_objects.total_count);
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cairo_set_source_rgba(ctx->cr, 1, 1, 1, 1);
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cairo_move_to(ctx->cr, 12, y);
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cairo_show_text(ctx->cr, buf);
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y += 14;
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for (comm = go->gem_objects.comm; comm; comm = comm->next) {
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sprintf(buf, " %s: %ld bytes, %d objects",
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comm->name, comm->bytes, comm->count);
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cairo_set_source_rgba(ctx->cr, 1, 1, 1, 1);
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cairo_move_to(ctx->cr, 12, y);
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cairo_show_text(ctx->cr, s);
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cairo_show_text(ctx->cr, buf);
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y += 14;
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s = t+1;
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}
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ctx->last_y = y;
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ctx->last_y += 112;
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}
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int main(int argc, char **argv)
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@ -470,6 +513,7 @@ int main(int argc, char **argv)
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struct overlay_gpu_top gpu_top;
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struct overlay_gpu_perf gpu_perf;
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struct overlay_gpu_freq gpu_freq;
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struct overlay_gem_objects gem_objects;
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int i = 0;
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if (argc > 1) {
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@ -484,6 +528,7 @@ int main(int argc, char **argv)
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init_gpu_top(&gpu_top, surface);
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init_gpu_perf(&gpu_perf, surface);
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init_gpu_freq(&gpu_freq, surface);
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init_gem_objects(&gem_objects, surface);
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while (1) {
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struct overlay_context ctx;
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@ -511,7 +556,7 @@ int main(int argc, char **argv)
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show_gpu_top(&ctx, &gpu_top);
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show_gpu_perf(&ctx, &gpu_perf);
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show_gpu_freq(&ctx, &gpu_freq);
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show_gem_objects(&ctx);
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show_gem_objects(&ctx, &gem_objects);
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cairo_destroy(ctx.cr);
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