From 2db8e9d6b255a4fd070df70fa58306bf64b41984 Mon Sep 17 00:00:00 2001 From: Chris Wilson Date: Tue, 4 Jun 2013 23:49:08 +0100 Subject: [PATCH] drm/i915: Track clients and print their object usage in debugfs By stashing a pointer of who opened the device and keeping a list of open fd, we can then walk each client and inspect how many objects they have open. For example, i915_gem_objects: 1102 objects, 613646336 bytes 663 [662] objects, 468783104 [468750336] bytes in gtt 37 [37] active objects, 46874624 [46874624] bytes 626 [625] inactive objects, 421908480 [421875712] bytes 282 unbound objects, 6512640 bytes 85 purgeable objects, 6787072 bytes 28 pinned mappable objects, 3686400 bytes 40 fault mappable objects, 27783168 bytes 2145386496 [536870912] gtt total Xorg: 43 objects, 32243712 bytes (10223616 active, 16683008 inactive, 4096 unbound) gnome-shell: 30 objects, 28381184 bytes (0 active, 28336128 inactive, 0 unbound) xonotic-linux64: 1032 objects, 569933824 bytes (46874624 active, 383545344 inactive, 6508544 unbound) v2: Use existing drm->filelist as pointed out by Ben. v3: Not even stashing the task_struct is required as Ben pointed out drm_file->pid. Signed-off-by: Chris Wilson Reviewed-by: Ben Widawsky Signed-off-by: Daniel Vetter --- drivers/gpu/drm/i915/i915_debugfs.c | 42 +++++++++++++++++++++++++++++ 1 file changed, 42 insertions(+) diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c index 0e7e3c04d939..d4e78b64ca87 100644 --- a/drivers/gpu/drm/i915/i915_debugfs.c +++ b/drivers/gpu/drm/i915/i915_debugfs.c @@ -196,6 +196,32 @@ static int i915_gem_object_list_info(struct seq_file *m, void *data) } \ } while (0) +struct file_stats { + int count; + size_t total, active, inactive, unbound; +}; + +static int per_file_stats(int id, void *ptr, void *data) +{ + struct drm_i915_gem_object *obj = ptr; + struct file_stats *stats = data; + + stats->count++; + stats->total += obj->base.size; + + if (obj->gtt_space) { + if (!list_empty(&obj->ring_list)) + stats->active += obj->base.size; + else + stats->inactive += obj->base.size; + } else { + if (!list_empty(&obj->global_list)) + stats->unbound += obj->base.size; + } + + return 0; +} + static int i915_gem_object_info(struct seq_file *m, void* data) { struct drm_info_node *node = (struct drm_info_node *) m->private; @@ -204,6 +230,7 @@ static int i915_gem_object_info(struct seq_file *m, void* data) u32 count, mappable_count, purgeable_count; size_t size, mappable_size, purgeable_size; struct drm_i915_gem_object *obj; + struct drm_file *file; int ret; ret = mutex_lock_interruptible(&dev->struct_mutex); @@ -263,6 +290,21 @@ static int i915_gem_object_info(struct seq_file *m, void* data) dev_priv->gtt.total, dev_priv->gtt.mappable_end - dev_priv->gtt.start); + seq_printf(m, "\n"); + list_for_each_entry_reverse(file, &dev->filelist, lhead) { + struct file_stats stats; + + memset(&stats, 0, sizeof(stats)); + idr_for_each(&file->object_idr, per_file_stats, &stats); + seq_printf(m, "%s: %u objects, %zu bytes (%zu active, %zu inactive, %zu unbound)\n", + get_pid_task(file->pid, PIDTYPE_PID)->comm, + stats.count, + stats.total, + stats.active, + stats.inactive, + stats.unbound); + } + mutex_unlock(&dev->struct_mutex); return 0; -- 2.20.1