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drm/i915: Print how many objects are shared in per-process stats

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The point of this measure is to gauge why a process has a lot of gem
objects in uses and why. Especially for compositors it's interesting
to know whether it's a leak of private objects or just a lot of use
from buffers shared with clients.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Ben Widawsky <ben@bwidawsk.net>
[danvet: Add a bit of commit message flesh to address Ben's comment.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Chris Wilson 2014-03-19 13:45:46 +00:00 committed by Daniel Vetter
parent 6313c20490
commit c67a17e972
1 changed files with 8 additions and 2 deletions
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10
drivers/gpu/drm/i915/i915_debugfs.c
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@ -301,7 +301,9 @@ static int i915_gem_stolen_list_info(struct seq_file *m, void *data)
struct file_stats { struct file_stats {
struct drm_i915_file_private *file_priv; struct drm_i915_file_private *file_priv;
int count; int count;
size_t total, global, active, inactive, unbound; size_t total, unbound;
size_t global, shared;
size_t active, inactive;
}; };
static int per_file_stats(int id, void *ptr, void *data) static int per_file_stats(int id, void *ptr, void *data)
@ -313,6 +315,9 @@ static int per_file_stats(int id, void *ptr, void *data)
stats->count++; stats->count++;
stats->total += obj->base.size; stats->total += obj->base.size;
if (obj->base.name || obj->base.dma_buf)
stats->shared += obj->base.size;
if (USES_FULL_PPGTT(obj->base.dev)) { if (USES_FULL_PPGTT(obj->base.dev)) {
list_for_each_entry(vma, &obj->vma_list, vma_link) { list_for_each_entry(vma, &obj->vma_list, vma_link) {
struct i915_hw_ppgtt *ppgtt; struct i915_hw_ppgtt *ppgtt;
@ -450,13 +455,14 @@ static int i915_gem_object_info(struct seq_file *m, void* data)
*/ */
rcu_read_lock(); rcu_read_lock();
task = pid_task(file->pid, PIDTYPE_PID); task = pid_task(file->pid, PIDTYPE_PID);
seq_printf(m, "%s: %u objects, %zu bytes (%zu active, %zu inactive, %zu global, %zu unbound)\n", seq_printf(m, "%s: %u objects, %zu bytes (%zu active, %zu inactive, %zu global, %zu shared, %zu unbound)\n",
task ? task->comm : "<unknown>", task ? task->comm : "<unknown>",
stats.count, stats.count,
stats.total, stats.total,
stats.active, stats.active,
stats.inactive, stats.inactive,
stats.global, stats.global,
stats.shared,
stats.unbound); stats.unbound);
rcu_read_unlock(); rcu_read_unlock();
} }