mirror of
https://github.com/varun-r-mallya/sysprof.git
synced 2025-12-31 20:36:25 +00:00
sysprof: add a new sampled model
The goal here is to allow us to look at way fewer items in a model rather than every item. For example, we don't want to draw 32,000,000 stack traces in the overview chart.
This commit is contained in:
Christian Hergert
@ -43,6 +43,7 @@ sysprof_sources = [
|
||||
'sysprof-power-profiles.c',
|
||||
'sysprof-recording-pad.c',
|
||||
'sysprof-recording-template.c',
|
||||
'sysprof-sampled-model.c',
|
||||
'sysprof-samples-section.c',
|
||||
'sysprof-scheduler.c',
|
||||
'sysprof-section.c',
|
||||
|
||||
292
src/sysprof/sysprof-sampled-model.c
Normal file
292
src/sysprof/sysprof-sampled-model.c
Normal file
@ -0,0 +1,292 @@
|
||||
/* sysprof-sampled-model.c
|
||||
*
|
||||
* Copyright 2023 Christian Hergert <chergert@redhat.com>
|
||||
*
|
||||
* This program is free software: you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation, either version 3 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||
*
|
||||
* SPDX-License-Identifier: GPL-3.0-or-later
|
||||
*/
|
||||
|
||||
#include "config.h"
|
||||
|
||||
#include "sysprof-sampled-model.h"
|
||||
|
||||
struct _SysprofSampledModel
|
||||
{
|
||||
GObject parent_instance;
|
||||
GListModel *model;
|
||||
guint max_items;
|
||||
guint n_items;
|
||||
};
|
||||
|
||||
enum {
|
||||
PROP_0,
|
||||
PROP_MODEL,
|
||||
PROP_MAX_ITEMS,
|
||||
N_PROPS
|
||||
};
|
||||
|
||||
static GType
|
||||
sysprof_sampled_model_get_item_type (GListModel *model)
|
||||
{
|
||||
SysprofSampledModel *self = (SysprofSampledModel *)model;
|
||||
|
||||
if (self->model != NULL)
|
||||
return g_list_model_get_item_type (self->model);
|
||||
|
||||
return G_TYPE_OBJECT;
|
||||
}
|
||||
|
||||
static guint
|
||||
sysprof_sampled_model_get_n_items (GListModel *model)
|
||||
{
|
||||
SysprofSampledModel *self = (SysprofSampledModel *)model;
|
||||
|
||||
if (self->model != NULL)
|
||||
return MIN (self->max_items, g_list_model_get_n_items (self->model));
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static gpointer
|
||||
sysprof_sampled_model_get_item (GListModel *model,
|
||||
guint position)
|
||||
{
|
||||
SysprofSampledModel *self = (SysprofSampledModel *)model;
|
||||
guint new_position;
|
||||
|
||||
if (self->model == NULL)
|
||||
return NULL;
|
||||
|
||||
if (self->n_items <= self->max_items)
|
||||
return g_list_model_get_item (self->model, position);
|
||||
|
||||
new_position = position / (double)g_list_model_get_n_items (G_LIST_MODEL (self)) * self->n_items;
|
||||
|
||||
return g_list_model_get_item (self->model, new_position);
|
||||
}
|
||||
|
||||
static void
|
||||
list_model_iface_init (GListModelInterface *iface)
|
||||
{
|
||||
iface->get_item_type = sysprof_sampled_model_get_item_type;
|
||||
iface->get_n_items = sysprof_sampled_model_get_n_items;
|
||||
iface->get_item = sysprof_sampled_model_get_item;
|
||||
}
|
||||
|
||||
G_DEFINE_FINAL_TYPE_WITH_CODE (SysprofSampledModel, sysprof_sampled_model, G_TYPE_OBJECT,
|
||||
G_IMPLEMENT_INTERFACE (G_TYPE_LIST_MODEL, list_model_iface_init))
|
||||
|
||||
static GParamSpec *properties [N_PROPS];
|
||||
|
||||
static void
|
||||
sysprof_sampled_model_items_changed (SysprofSampledModel *self,
|
||||
guint position,
|
||||
guint removed,
|
||||
guint added,
|
||||
GListModel *model)
|
||||
{
|
||||
guint old_n_items = self->n_items;
|
||||
guint new_n_items = MIN (self->max_items, g_list_model_get_n_items (model));
|
||||
|
||||
self->n_items = g_list_model_get_n_items (model);
|
||||
|
||||
g_list_model_items_changed (G_LIST_MODEL (self), 0, old_n_items, new_n_items);
|
||||
}
|
||||
|
||||
static void
|
||||
sysprof_sampled_model_dispose (GObject *object)
|
||||
{
|
||||
SysprofSampledModel *self = (SysprofSampledModel *)object;
|
||||
|
||||
sysprof_sampled_model_set_model (self, NULL);
|
||||
|
||||
G_OBJECT_CLASS (sysprof_sampled_model_parent_class)->dispose (object);
|
||||
}
|
||||
|
||||
static void
|
||||
sysprof_sampled_model_get_property (GObject *object,
|
||||
guint prop_id,
|
||||
GValue *value,
|
||||
GParamSpec *pspec)
|
||||
{
|
||||
SysprofSampledModel *self = SYSPROF_SAMPLED_MODEL (object);
|
||||
|
||||
switch (prop_id)
|
||||
{
|
||||
case PROP_MAX_ITEMS:
|
||||
g_value_set_uint (value, sysprof_sampled_model_get_max_items (self));
|
||||
break;
|
||||
|
||||
case PROP_MODEL:
|
||||
g_value_set_object (value, sysprof_sampled_model_get_model (self));
|
||||
break;
|
||||
|
||||
default:
|
||||
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
||||
}
|
||||
}
|
||||
|
||||
static void
|
||||
sysprof_sampled_model_set_property (GObject *object,
|
||||
guint prop_id,
|
||||
const GValue *value,
|
||||
GParamSpec *pspec)
|
||||
{
|
||||
SysprofSampledModel *self = SYSPROF_SAMPLED_MODEL (object);
|
||||
|
||||
switch (prop_id)
|
||||
{
|
||||
case PROP_MODEL:
|
||||
sysprof_sampled_model_set_model (self, g_value_get_object (value));
|
||||
break;
|
||||
|
||||
case PROP_MAX_ITEMS:
|
||||
sysprof_sampled_model_set_max_items (self, g_value_get_uint (value));
|
||||
break;
|
||||
|
||||
default:
|
||||
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
||||
}
|
||||
}
|
||||
|
||||
static void
|
||||
sysprof_sampled_model_class_init (SysprofSampledModelClass *klass)
|
||||
{
|
||||
GObjectClass *object_class = G_OBJECT_CLASS (klass);
|
||||
|
||||
object_class->dispose = sysprof_sampled_model_dispose;
|
||||
object_class->get_property = sysprof_sampled_model_get_property;
|
||||
object_class->set_property = sysprof_sampled_model_set_property;
|
||||
|
||||
properties[PROP_MODEL] =
|
||||
g_param_spec_object ("model", NULL, NULL,
|
||||
G_TYPE_LIST_MODEL,
|
||||
(G_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY | G_PARAM_STATIC_STRINGS));
|
||||
|
||||
properties[PROP_MAX_ITEMS] =
|
||||
g_param_spec_uint ("max-items", NULL, NULL,
|
||||
1, G_MAXUINT, G_MAXUINT-1,
|
||||
(G_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY | G_PARAM_STATIC_STRINGS));
|
||||
|
||||
g_object_class_install_properties (object_class, N_PROPS, properties);
|
||||
}
|
||||
|
||||
static void
|
||||
sysprof_sampled_model_init (SysprofSampledModel *self)
|
||||
{
|
||||
self->max_items = G_MAXUINT-1;
|
||||
}
|
||||
|
||||
SysprofSampledModel *
|
||||
sysprof_sampled_model_new (GListModel *model,
|
||||
guint max_items)
|
||||
{
|
||||
SysprofSampledModel *self;
|
||||
|
||||
g_return_val_if_fail (!model || G_IS_LIST_MODEL (model), NULL);
|
||||
|
||||
self = g_object_new (SYSPROF_TYPE_SAMPLED_MODEL,
|
||||
"model", model,
|
||||
"max-items", max_items,
|
||||
NULL);
|
||||
|
||||
if (model)
|
||||
g_object_unref (model);
|
||||
|
||||
return self;
|
||||
}
|
||||
|
||||
guint
|
||||
sysprof_sampled_model_get_max_items (SysprofSampledModel *self)
|
||||
{
|
||||
g_return_val_if_fail (SYSPROF_IS_SAMPLED_MODEL (self), 0);
|
||||
|
||||
return self->max_items;
|
||||
}
|
||||
|
||||
void
|
||||
sysprof_sampled_model_set_max_items (SysprofSampledModel *self,
|
||||
guint max_items)
|
||||
{
|
||||
g_return_if_fail (SYSPROF_IS_SAMPLED_MODEL (self));
|
||||
|
||||
if (max_items == 0)
|
||||
max_items = G_MAXUINT-1;
|
||||
|
||||
if (self->max_items != max_items)
|
||||
{
|
||||
guint old_n_items = g_list_model_get_n_items (G_LIST_MODEL (self));
|
||||
guint new_n_items;
|
||||
|
||||
self->max_items = max_items;
|
||||
new_n_items = g_list_model_get_n_items (G_LIST_MODEL (self));
|
||||
|
||||
if (new_n_items != old_n_items)
|
||||
g_list_model_items_changed (G_LIST_MODEL (self), 0, old_n_items, new_n_items);
|
||||
|
||||
g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_MAX_ITEMS]);
|
||||
}
|
||||
}
|
||||
|
||||
GListModel *
|
||||
sysprof_sampled_model_get_model (SysprofSampledModel *self)
|
||||
{
|
||||
g_return_val_if_fail (SYSPROF_IS_SAMPLED_MODEL (self), NULL);
|
||||
|
||||
return self->model;
|
||||
}
|
||||
|
||||
void
|
||||
sysprof_sampled_model_set_model (SysprofSampledModel *self,
|
||||
GListModel *model)
|
||||
{
|
||||
guint old_n_items;
|
||||
guint new_n_items;
|
||||
|
||||
g_return_if_fail (SYSPROF_IS_SAMPLED_MODEL (self));
|
||||
g_return_if_fail (!model || G_IS_LIST_MODEL (model));
|
||||
|
||||
if (self->model == model)
|
||||
return;
|
||||
|
||||
old_n_items = g_list_model_get_n_items (G_LIST_MODEL (self));
|
||||
|
||||
if (self->model)
|
||||
{
|
||||
self->n_items = 0;
|
||||
g_signal_handlers_disconnect_by_func (self->model,
|
||||
G_CALLBACK (sysprof_sampled_model_items_changed),
|
||||
self);
|
||||
}
|
||||
|
||||
g_set_object (&self->model, model);
|
||||
|
||||
if (self->model)
|
||||
{
|
||||
self->n_items = g_list_model_get_n_items (self->model);
|
||||
g_signal_connect_object (self->model,
|
||||
"items-changed",
|
||||
G_CALLBACK (sysprof_sampled_model_items_changed),
|
||||
self,
|
||||
G_CONNECT_SWAPPED);
|
||||
}
|
||||
|
||||
new_n_items = g_list_model_get_n_items (G_LIST_MODEL (self));
|
||||
|
||||
if (new_n_items != old_n_items)
|
||||
g_list_model_items_changed (G_LIST_MODEL (self), 0, old_n_items, new_n_items);
|
||||
|
||||
g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_MODEL]);
|
||||
}
|
||||
40
src/sysprof/sysprof-sampled-model.h
Normal file
40
src/sysprof/sysprof-sampled-model.h
Normal file
@ -0,0 +1,40 @@
|
||||
/* sysprof-sampled-model.h
|
||||
*
|
||||
* Copyright 2023 Christian Hergert <chergert@redhat.com>
|
||||
*
|
||||
* This program is free software: you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation, either version 3 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||
*
|
||||
* SPDX-License-Identifier: GPL-3.0-or-later
|
||||
*/
|
||||
|
||||
#pragma once
|
||||
|
||||
#include <gio/gio.h>
|
||||
|
||||
G_BEGIN_DECLS
|
||||
|
||||
#define SYSPROF_TYPE_SAMPLED_MODEL (sysprof_sampled_model_get_type())
|
||||
|
||||
G_DECLARE_FINAL_TYPE (SysprofSampledModel, sysprof_sampled_model, SYSPROF, SAMPLED_MODEL, GObject)
|
||||
|
||||
SysprofSampledModel *sysprof_sampled_model_new (GListModel *model,
|
||||
guint max_items);
|
||||
GListModel *sysprof_sampled_model_get_model (SysprofSampledModel *self);
|
||||
void sysprof_sampled_model_set_model (SysprofSampledModel *self,
|
||||
GListModel *model);
|
||||
guint sysprof_sampled_model_get_max_items (SysprofSampledModel *self);
|
||||
void sysprof_sampled_model_set_max_items (SysprofSampledModel *self,
|
||||
guint max_items);
|
||||
|
||||
G_END_DECLS
|
||||
Reference in New Issue
Block a user