diff mbox series

[5/5] drm/i915: Implement fdinfo memory stats printing

Message ID 20230707130220.3966836-6-tvrtko.ursulin@linux.intel.com (mailing list archive)
State New, archived
Headers show
Series fdinfo memory stats | expand

Commit Message

Tvrtko Ursulin July 7, 2023, 1:02 p.m. UTC
From: Tvrtko Ursulin <tvrtko.ursulin@intel.com>

Use the newly added drm_print_memory_stats helper to show memory
utilisation of our objects in drm/driver specific fdinfo output.

To collect the stats we walk the per memory regions object lists
and accumulate object size into the respective drm_memory_stats
categories.

Objects with multiple possible placements are reported in multiple
regions for total and shared sizes, while other categories are
counted only for the currently active region.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Aravind Iddamsetty <aravind.iddamsetty@intel.com>
Cc: Rob Clark <robdclark@gmail.com>
---
 drivers/gpu/drm/i915/i915_drm_client.c | 85 ++++++++++++++++++++++++++
 1 file changed, 85 insertions(+)

Comments

Tejas Upadhyay Aug. 24, 2023, 11:35 a.m. UTC | #1
> -----Original Message-----
> From: Intel-gfx <intel-gfx-bounces@lists.freedesktop.org> On Behalf Of Tvrtko
> Ursulin
> Sent: Friday, July 7, 2023 6:32 PM
> To: Intel-gfx@lists.freedesktop.org; dri-devel@lists.freedesktop.org
> Subject: [Intel-gfx] [PATCH 5/5] drm/i915: Implement fdinfo memory stats
> printing
> 
> From: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
> 
> Use the newly added drm_print_memory_stats helper to show memory
> utilisation of our objects in drm/driver specific fdinfo output.
> 
> To collect the stats we walk the per memory regions object lists and
> accumulate object size into the respective drm_memory_stats categories.
> 
> Objects with multiple possible placements are reported in multiple regions for
> total and shared sizes, while other categories are counted only for the
> currently active region.
> 
> Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
> Cc: Aravind Iddamsetty <aravind.iddamsetty@intel.com>
> Cc: Rob Clark <robdclark@gmail.com>
> ---
>  drivers/gpu/drm/i915/i915_drm_client.c | 85 ++++++++++++++++++++++++++
>  1 file changed, 85 insertions(+)
> 
> diff --git a/drivers/gpu/drm/i915/i915_drm_client.c
> b/drivers/gpu/drm/i915/i915_drm_client.c
> index ffccb6239789..5c77d6987d90 100644
> --- a/drivers/gpu/drm/i915/i915_drm_client.c
> +++ b/drivers/gpu/drm/i915/i915_drm_client.c
> @@ -45,6 +45,89 @@ void __i915_drm_client_free(struct kref *kref)  }
> 
>  #ifdef CONFIG_PROC_FS
> +static void
> +obj_meminfo(struct drm_i915_gem_object *obj,
> +	    struct drm_memory_stats stats[INTEL_REGION_UNKNOWN]) {
> +	struct intel_memory_region *mr;
> +	u64 sz = obj->base.size;
> +	enum intel_region_id id;
> +	unsigned int i;
> +
> +	/* Attribute size and shared to all possible memory regions. */
> +	for (i = 0; i < obj->mm.n_placements; i++) {
> +		mr = obj->mm.placements[i];
> +		id = mr->id;
> +
> +		if (obj->base.handle_count > 1)
> +			stats[id].shared += sz;
> +		else
> +			stats[id].private += sz;
> +	}
> +
> +	/* Attribute other categories to only the current region. */
> +	mr = obj->mm.region;
> +	if (mr)
> +		id = mr->id;
> +	else
> +		id = INTEL_REGION_SMEM;
> +
> +	if (!obj->mm.n_placements) {
> +		if (obj->base.handle_count > 1)
> +			stats[id].shared += sz;
> +		else
> +			stats[id].private += sz;
> +	}
> +
> +	if (i915_gem_object_has_pages(obj)) {
> +		stats[id].resident += sz;
> +
> +		if (!dma_resv_test_signaled(obj->base.resv,
> +					    dma_resv_usage_rw(true)))

Should not DMA_RESV_USAGE_BOOKKEEP also considered active (why only "rw")? Some app is syncing with syncjobs and has added dma_fence with DMA_RESV_USAGE_BOOKKEEP during execbuf while that BO is busy on waiting on work!

Thanks,
Tejas
> +			stats[id].active += sz;
> +		else if (i915_gem_object_is_shrinkable(obj) &&
> +			 obj->mm.madv == I915_MADV_DONTNEED)
> +			stats[id].purgeable += sz;
> +	}
> +}
> +
> +static void show_meminfo(struct drm_printer *p, struct drm_file *file)
> +{
> +	struct drm_memory_stats stats[INTEL_REGION_UNKNOWN] = {};
> +	struct drm_i915_file_private *fpriv = file->driver_priv;
> +	struct i915_drm_client *client = fpriv->client;
> +	struct drm_i915_private *i915 = fpriv->i915;
> +	struct drm_i915_gem_object *obj;
> +	struct intel_memory_region *mr;
> +	struct list_head *pos;
> +	unsigned int id;
> +
> +	/* Public objects. */
> +	spin_lock(&file->table_lock);
> +	idr_for_each_entry (&file->object_idr, obj, id)
> +		obj_meminfo(obj, stats);
> +	spin_unlock(&file->table_lock);
> +
> +	/* Internal objects. */
> +	rcu_read_lock();
> +	list_for_each_rcu(pos, &client->objects_list) {
> +		obj = i915_gem_object_get_rcu(list_entry(pos, typeof(*obj),
> +							 client_link));
> +		if (!obj)
> +			continue;
> +		obj_meminfo(obj, stats);
> +		i915_gem_object_put(obj);
> +	}
> +	rcu_read_unlock();
> +
> +	for_each_memory_region(mr, i915, id)
> +		drm_print_memory_stats(p,
> +				       &stats[id],
> +				       DRM_GEM_OBJECT_RESIDENT |
> +				       DRM_GEM_OBJECT_PURGEABLE,
> +				       mr->name);
> +}
> +
>  static const char * const uabi_class_names[] = {
>  	[I915_ENGINE_CLASS_RENDER] = "render",
>  	[I915_ENGINE_CLASS_COPY] = "copy",
> @@ -106,6 +189,8 @@ void i915_drm_client_fdinfo(struct drm_printer *p,
> struct drm_file *file)
>  	 *
> ****************************************************************
> **
>  	 */
> 
> +	show_meminfo(p, file);
> +
>  	if (GRAPHICS_VER(i915) < 8)
>  		return;
> 
> --
> 2.39.2
Tvrtko Ursulin Sept. 20, 2023, 2:22 p.m. UTC | #2
On 24/08/2023 12:35, Upadhyay, Tejas wrote:
>> -----Original Message-----
>> From: Intel-gfx <intel-gfx-bounces@lists.freedesktop.org> On Behalf Of Tvrtko
>> Ursulin
>> Sent: Friday, July 7, 2023 6:32 PM
>> To: Intel-gfx@lists.freedesktop.org; dri-devel@lists.freedesktop.org
>> Subject: [Intel-gfx] [PATCH 5/5] drm/i915: Implement fdinfo memory stats
>> printing
>>
>> From: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
>>
>> Use the newly added drm_print_memory_stats helper to show memory
>> utilisation of our objects in drm/driver specific fdinfo output.
>>
>> To collect the stats we walk the per memory regions object lists and
>> accumulate object size into the respective drm_memory_stats categories.
>>
>> Objects with multiple possible placements are reported in multiple regions for
>> total and shared sizes, while other categories are counted only for the
>> currently active region.
>>
>> Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
>> Cc: Aravind Iddamsetty <aravind.iddamsetty@intel.com>
>> Cc: Rob Clark <robdclark@gmail.com>
>> ---
>>   drivers/gpu/drm/i915/i915_drm_client.c | 85 ++++++++++++++++++++++++++
>>   1 file changed, 85 insertions(+)
>>
>> diff --git a/drivers/gpu/drm/i915/i915_drm_client.c
>> b/drivers/gpu/drm/i915/i915_drm_client.c
>> index ffccb6239789..5c77d6987d90 100644
>> --- a/drivers/gpu/drm/i915/i915_drm_client.c
>> +++ b/drivers/gpu/drm/i915/i915_drm_client.c
>> @@ -45,6 +45,89 @@ void __i915_drm_client_free(struct kref *kref)  }
>>
>>   #ifdef CONFIG_PROC_FS
>> +static void
>> +obj_meminfo(struct drm_i915_gem_object *obj,
>> +	    struct drm_memory_stats stats[INTEL_REGION_UNKNOWN]) {
>> +	struct intel_memory_region *mr;
>> +	u64 sz = obj->base.size;
>> +	enum intel_region_id id;
>> +	unsigned int i;
>> +
>> +	/* Attribute size and shared to all possible memory regions. */
>> +	for (i = 0; i < obj->mm.n_placements; i++) {
>> +		mr = obj->mm.placements[i];
>> +		id = mr->id;
>> +
>> +		if (obj->base.handle_count > 1)
>> +			stats[id].shared += sz;
>> +		else
>> +			stats[id].private += sz;
>> +	}
>> +
>> +	/* Attribute other categories to only the current region. */
>> +	mr = obj->mm.region;
>> +	if (mr)
>> +		id = mr->id;
>> +	else
>> +		id = INTEL_REGION_SMEM;
>> +
>> +	if (!obj->mm.n_placements) {
>> +		if (obj->base.handle_count > 1)
>> +			stats[id].shared += sz;
>> +		else
>> +			stats[id].private += sz;
>> +	}
>> +
>> +	if (i915_gem_object_has_pages(obj)) {
>> +		stats[id].resident += sz;
>> +
>> +		if (!dma_resv_test_signaled(obj->base.resv,
>> +					    dma_resv_usage_rw(true)))
> 
> Should not DMA_RESV_USAGE_BOOKKEEP also considered active (why only "rw")? Some app is syncing with syncjobs and has added dma_fence with DMA_RESV_USAGE_BOOKKEEP during execbuf while that BO is busy on waiting on work!

Hmm do we have a path which adds DMA_RESV_USAGE_BOOKKEEP usage in execbuf?

Rob, any comments here? Given how I basically lifted the logic from 
686b21b5f6ca ("drm: Add fdinfo memory stats"), does it sound plausible 
to upgrade the test against all fences?

Regards,

Tvrtko

>> +			stats[id].active += sz;
>> +		else if (i915_gem_object_is_shrinkable(obj) &&
>> +			 obj->mm.madv == I915_MADV_DONTNEED)
>> +			stats[id].purgeable += sz;
>> +	}
>> +}
>> +
>> +static void show_meminfo(struct drm_printer *p, struct drm_file *file)
>> +{
>> +	struct drm_memory_stats stats[INTEL_REGION_UNKNOWN] = {};
>> +	struct drm_i915_file_private *fpriv = file->driver_priv;
>> +	struct i915_drm_client *client = fpriv->client;
>> +	struct drm_i915_private *i915 = fpriv->i915;
>> +	struct drm_i915_gem_object *obj;
>> +	struct intel_memory_region *mr;
>> +	struct list_head *pos;
>> +	unsigned int id;
>> +
>> +	/* Public objects. */
>> +	spin_lock(&file->table_lock);
>> +	idr_for_each_entry (&file->object_idr, obj, id)
>> +		obj_meminfo(obj, stats);
>> +	spin_unlock(&file->table_lock);
>> +
>> +	/* Internal objects. */
>> +	rcu_read_lock();
>> +	list_for_each_rcu(pos, &client->objects_list) {
>> +		obj = i915_gem_object_get_rcu(list_entry(pos, typeof(*obj),
>> +							 client_link));
>> +		if (!obj)
>> +			continue;
>> +		obj_meminfo(obj, stats);
>> +		i915_gem_object_put(obj);
>> +	}
>> +	rcu_read_unlock();
>> +
>> +	for_each_memory_region(mr, i915, id)
>> +		drm_print_memory_stats(p,
>> +				       &stats[id],
>> +				       DRM_GEM_OBJECT_RESIDENT |
>> +				       DRM_GEM_OBJECT_PURGEABLE,
>> +				       mr->name);
>> +}
>> +
>>   static const char * const uabi_class_names[] = {
>>   	[I915_ENGINE_CLASS_RENDER] = "render",
>>   	[I915_ENGINE_CLASS_COPY] = "copy",
>> @@ -106,6 +189,8 @@ void i915_drm_client_fdinfo(struct drm_printer *p,
>> struct drm_file *file)
>>   	 *
>> ****************************************************************
>> **
>>   	 */
>>
>> +	show_meminfo(p, file);
>> +
>>   	if (GRAPHICS_VER(i915) < 8)
>>   		return;
>>
>> --
>> 2.39.2
>
Rob Clark Sept. 20, 2023, 2:39 p.m. UTC | #3
On Wed, Sep 20, 2023 at 7:35 AM Tvrtko Ursulin
<tvrtko.ursulin@linux.intel.com> wrote:
>
>
> On 24/08/2023 12:35, Upadhyay, Tejas wrote:
> >> -----Original Message-----
> >> From: Intel-gfx <intel-gfx-bounces@lists.freedesktop.org> On Behalf Of Tvrtko
> >> Ursulin
> >> Sent: Friday, July 7, 2023 6:32 PM
> >> To: Intel-gfx@lists.freedesktop.org; dri-devel@lists.freedesktop.org
> >> Subject: [Intel-gfx] [PATCH 5/5] drm/i915: Implement fdinfo memory stats
> >> printing
> >>
> >> From: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
> >>
> >> Use the newly added drm_print_memory_stats helper to show memory
> >> utilisation of our objects in drm/driver specific fdinfo output.
> >>
> >> To collect the stats we walk the per memory regions object lists and
> >> accumulate object size into the respective drm_memory_stats categories.
> >>
> >> Objects with multiple possible placements are reported in multiple regions for
> >> total and shared sizes, while other categories are counted only for the
> >> currently active region.
> >>
> >> Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
> >> Cc: Aravind Iddamsetty <aravind.iddamsetty@intel.com>
> >> Cc: Rob Clark <robdclark@gmail.com>
> >> ---
> >>   drivers/gpu/drm/i915/i915_drm_client.c | 85 ++++++++++++++++++++++++++
> >>   1 file changed, 85 insertions(+)
> >>
> >> diff --git a/drivers/gpu/drm/i915/i915_drm_client.c
> >> b/drivers/gpu/drm/i915/i915_drm_client.c
> >> index ffccb6239789..5c77d6987d90 100644
> >> --- a/drivers/gpu/drm/i915/i915_drm_client.c
> >> +++ b/drivers/gpu/drm/i915/i915_drm_client.c
> >> @@ -45,6 +45,89 @@ void __i915_drm_client_free(struct kref *kref)  }
> >>
> >>   #ifdef CONFIG_PROC_FS
> >> +static void
> >> +obj_meminfo(struct drm_i915_gem_object *obj,
> >> +        struct drm_memory_stats stats[INTEL_REGION_UNKNOWN]) {
> >> +    struct intel_memory_region *mr;
> >> +    u64 sz = obj->base.size;
> >> +    enum intel_region_id id;
> >> +    unsigned int i;
> >> +
> >> +    /* Attribute size and shared to all possible memory regions. */
> >> +    for (i = 0; i < obj->mm.n_placements; i++) {
> >> +            mr = obj->mm.placements[i];
> >> +            id = mr->id;
> >> +
> >> +            if (obj->base.handle_count > 1)
> >> +                    stats[id].shared += sz;
> >> +            else
> >> +                    stats[id].private += sz;
> >> +    }
> >> +
> >> +    /* Attribute other categories to only the current region. */
> >> +    mr = obj->mm.region;
> >> +    if (mr)
> >> +            id = mr->id;
> >> +    else
> >> +            id = INTEL_REGION_SMEM;
> >> +
> >> +    if (!obj->mm.n_placements) {
> >> +            if (obj->base.handle_count > 1)
> >> +                    stats[id].shared += sz;
> >> +            else
> >> +                    stats[id].private += sz;
> >> +    }
> >> +
> >> +    if (i915_gem_object_has_pages(obj)) {
> >> +            stats[id].resident += sz;
> >> +
> >> +            if (!dma_resv_test_signaled(obj->base.resv,
> >> +                                        dma_resv_usage_rw(true)))
> >
> > Should not DMA_RESV_USAGE_BOOKKEEP also considered active (why only "rw")? Some app is syncing with syncjobs and has added dma_fence with DMA_RESV_USAGE_BOOKKEEP during execbuf while that BO is busy on waiting on work!
>
> Hmm do we have a path which adds DMA_RESV_USAGE_BOOKKEEP usage in execbuf?
>
> Rob, any comments here? Given how I basically lifted the logic from
> 686b21b5f6ca ("drm: Add fdinfo memory stats"), does it sound plausible
> to upgrade the test against all fences?

Yes, I think so.. I don't have any use for BOOKKEEP so I hadn't considered it

BR,
-R


>
> Regards,
>
> Tvrtko
>
> >> +                    stats[id].active += sz;
> >> +            else if (i915_gem_object_is_shrinkable(obj) &&
> >> +                     obj->mm.madv == I915_MADV_DONTNEED)
> >> +                    stats[id].purgeable += sz;
> >> +    }
> >> +}
> >> +
> >> +static void show_meminfo(struct drm_printer *p, struct drm_file *file)
> >> +{
> >> +    struct drm_memory_stats stats[INTEL_REGION_UNKNOWN] = {};
> >> +    struct drm_i915_file_private *fpriv = file->driver_priv;
> >> +    struct i915_drm_client *client = fpriv->client;
> >> +    struct drm_i915_private *i915 = fpriv->i915;
> >> +    struct drm_i915_gem_object *obj;
> >> +    struct intel_memory_region *mr;
> >> +    struct list_head *pos;
> >> +    unsigned int id;
> >> +
> >> +    /* Public objects. */
> >> +    spin_lock(&file->table_lock);
> >> +    idr_for_each_entry (&file->object_idr, obj, id)
> >> +            obj_meminfo(obj, stats);
> >> +    spin_unlock(&file->table_lock);
> >> +
> >> +    /* Internal objects. */
> >> +    rcu_read_lock();
> >> +    list_for_each_rcu(pos, &client->objects_list) {
> >> +            obj = i915_gem_object_get_rcu(list_entry(pos, typeof(*obj),
> >> +                                                     client_link));
> >> +            if (!obj)
> >> +                    continue;
> >> +            obj_meminfo(obj, stats);
> >> +            i915_gem_object_put(obj);
> >> +    }
> >> +    rcu_read_unlock();
> >> +
> >> +    for_each_memory_region(mr, i915, id)
> >> +            drm_print_memory_stats(p,
> >> +                                   &stats[id],
> >> +                                   DRM_GEM_OBJECT_RESIDENT |
> >> +                                   DRM_GEM_OBJECT_PURGEABLE,
> >> +                                   mr->name);
> >> +}
> >> +
> >>   static const char * const uabi_class_names[] = {
> >>      [I915_ENGINE_CLASS_RENDER] = "render",
> >>      [I915_ENGINE_CLASS_COPY] = "copy",
> >> @@ -106,6 +189,8 @@ void i915_drm_client_fdinfo(struct drm_printer *p,
> >> struct drm_file *file)
> >>       *
> >> ****************************************************************
> >> **
> >>       */
> >>
> >> +    show_meminfo(p, file);
> >> +
> >>      if (GRAPHICS_VER(i915) < 8)
> >>              return;
> >>
> >> --
> >> 2.39.2
> >
diff mbox series

Patch

diff --git a/drivers/gpu/drm/i915/i915_drm_client.c b/drivers/gpu/drm/i915/i915_drm_client.c
index ffccb6239789..5c77d6987d90 100644
--- a/drivers/gpu/drm/i915/i915_drm_client.c
+++ b/drivers/gpu/drm/i915/i915_drm_client.c
@@ -45,6 +45,89 @@  void __i915_drm_client_free(struct kref *kref)
 }
 
 #ifdef CONFIG_PROC_FS
+static void
+obj_meminfo(struct drm_i915_gem_object *obj,
+	    struct drm_memory_stats stats[INTEL_REGION_UNKNOWN])
+{
+	struct intel_memory_region *mr;
+	u64 sz = obj->base.size;
+	enum intel_region_id id;
+	unsigned int i;
+
+	/* Attribute size and shared to all possible memory regions. */
+	for (i = 0; i < obj->mm.n_placements; i++) {
+		mr = obj->mm.placements[i];
+		id = mr->id;
+
+		if (obj->base.handle_count > 1)
+			stats[id].shared += sz;
+		else
+			stats[id].private += sz;
+	}
+
+	/* Attribute other categories to only the current region. */
+	mr = obj->mm.region;
+	if (mr)
+		id = mr->id;
+	else
+		id = INTEL_REGION_SMEM;
+
+	if (!obj->mm.n_placements) {
+		if (obj->base.handle_count > 1)
+			stats[id].shared += sz;
+		else
+			stats[id].private += sz;
+	}
+
+	if (i915_gem_object_has_pages(obj)) {
+		stats[id].resident += sz;
+
+		if (!dma_resv_test_signaled(obj->base.resv,
+					    dma_resv_usage_rw(true)))
+			stats[id].active += sz;
+		else if (i915_gem_object_is_shrinkable(obj) &&
+			 obj->mm.madv == I915_MADV_DONTNEED)
+			stats[id].purgeable += sz;
+	}
+}
+
+static void show_meminfo(struct drm_printer *p, struct drm_file *file)
+{
+	struct drm_memory_stats stats[INTEL_REGION_UNKNOWN] = {};
+	struct drm_i915_file_private *fpriv = file->driver_priv;
+	struct i915_drm_client *client = fpriv->client;
+	struct drm_i915_private *i915 = fpriv->i915;
+	struct drm_i915_gem_object *obj;
+	struct intel_memory_region *mr;
+	struct list_head *pos;
+	unsigned int id;
+
+	/* Public objects. */
+	spin_lock(&file->table_lock);
+	idr_for_each_entry (&file->object_idr, obj, id)
+		obj_meminfo(obj, stats);
+	spin_unlock(&file->table_lock);
+
+	/* Internal objects. */
+	rcu_read_lock();
+	list_for_each_rcu(pos, &client->objects_list) {
+		obj = i915_gem_object_get_rcu(list_entry(pos, typeof(*obj),
+							 client_link));
+		if (!obj)
+			continue;
+		obj_meminfo(obj, stats);
+		i915_gem_object_put(obj);
+	}
+	rcu_read_unlock();
+
+	for_each_memory_region(mr, i915, id)
+		drm_print_memory_stats(p,
+				       &stats[id],
+				       DRM_GEM_OBJECT_RESIDENT |
+				       DRM_GEM_OBJECT_PURGEABLE,
+				       mr->name);
+}
+
 static const char * const uabi_class_names[] = {
 	[I915_ENGINE_CLASS_RENDER] = "render",
 	[I915_ENGINE_CLASS_COPY] = "copy",
@@ -106,6 +189,8 @@  void i915_drm_client_fdinfo(struct drm_printer *p, struct drm_file *file)
 	 * ******************************************************************
 	 */
 
+	show_meminfo(p, file);
+
 	if (GRAPHICS_VER(i915) < 8)
 		return;