path: root/tools/perf/builtin-timechart.c

/*
 * builtin-timechart.c - make an svg timechart of system activity
 *
 * (C) Copyright 2009 Intel Corporation
 *
 * Authors:
 *     Arjan van de Ven <arjan@linux.intel.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; version 2
 * of the License.
 */

#include "builtin.h"

#include "util/util.h"

#include "util/color.h"
#include <linux/list.h>
#include "util/cache.h"
#include <linux/rbtree.h>
#include "util/symbol.h"
#include "util/string.h"
#include "util/callchain.h"
#include "util/strlist.h"

#include "perf.h"
#include "util/header.h"
#include "util/parse-options.h"
#include "util/parse-events.h"
#include "util/svghelper.h"

static char		const *input_name = "perf.data";
static char		const *output_name = "output.svg";


static unsigned long	page_size;
static unsigned long	mmap_window = 32;
static u64		sample_type;

static unsigned int	numcpus;
static u64		min_freq;	/* Lowest CPU frequency seen */
static u64		max_freq;	/* Highest CPU frequency seen */
static u64		turbo_frequency;

static u64		first_time, last_time;

static int		power_only;


static struct perf_header	*header;

struct per_pid;
struct per_pidcomm;

struct cpu_sample;
struct power_event;
struct wake_event;

struct sample_wrapper;

/*
 * Datastructure layout:
 * We keep an list of "pid"s, matching the kernels notion of a task struct.
 * Each "pid" entry, has a list of "comm"s.
 *	this is because we want to track different programs different, while
 *	exec will reuse the original pid (by design).
 * Each comm has a list of samples that will be used to draw
 * final graph.
 */

struct per_pid {
	struct per_pid *next;

	int		pid;
	int		ppid;

	u64		start_time;
	u64		end_time;
	u64		total_time;
	int		display;

	struct per_pidcomm *all;
	struct per_pidcomm *current;

	int painted;
};


struct per_pidcomm {
	struct per_pidcomm *next;

	u64		start_time;
	u64		end_time;
	u64		total_time;

	int		Y;
	int		display;

	long		state;
	u64		state_since;

	char		*comm;

	struct cpu_sample *samples;
};

struct sample_wrapper {
	struct sample_wrapper *next;

	u64		timestamp;
	unsigned char	data[0];
};

#define TYPE_NONE	0
#define TYPE_RUNNING	1
#define TYPE_WAITING	2
#define TYPE_BLOCKED	3

struct cpu_sample {
	struct cpu_sample *next;

	u64 start_time;
	u64 end_time;
	int type;
	int cpu;
};

static struct per_pid *all_data;

#define CSTATE 1
#define PSTATE 2

struct power_event {
	struct power_event *next;
	int type;
	int state;