aboutsummaryrefslogtreecommitdiffstats
path: root/tools/perf/util/values.c
blob: 614cfaf4712afa1555ac36d02b7985f248e5ba27 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
#include <stdlib.h>

#include "util.h"
#include "values.h"

void perf_read_values_init(struct perf_read_values *values)
{
	values->threads_max = 16;
	values->pid = malloc(values->threads_max * sizeof(*values->pid));
	values->tid = malloc(values->threads_max * sizeof(*values->tid));
	values->value = malloc(values->threads_max * sizeof(*values->value));
	if (!values->pid || !values->tid || !values->value)
		die("failed to allocate read_values threads arrays");
	values->threads = 0;

	values->counters_max = 16;
	values->counterrawid = malloc(values->counters_max
				      * sizeof(*values->counterrawid));
	values->countername = malloc(values->counters_max
				     * sizeof(*values->countername));
	if (!values->counterrawid || !values->countername)
		die("failed to allocate read_values counters arrays");
	values->counters = 0;
}

void perf_read_values_destroy(struct perf_read_values *values)
{
	int i;

	if (!values->threads_max || !values->counters_max)
		return;

	for (i = 0; i < values->threads; i++)
		free(values->value[i]);
	free(values->pid);
	free(values->tid);
	free(values->counterrawid);
	for (i = 0; i < values->counters; i++)
		free(values->countername[i]);
	free(values->countername);
}

static void perf_read_values__enlarge_threads(struct perf_read_values *values)
{
	values->threads_max *= 2;
	values->pid = realloc(values->pid,
			      values->threads_max * sizeof(*values->pid));
	values->tid = realloc(values->tid,
			      values->threads_max * sizeof(*values->tid));
	values->value = realloc(values->value,
				values->threads_max * sizeof(*values->value));
	if (!values->pid || !values->tid || !values->value)
		die("failed to enlarge read_values threads arrays");
}

static int perf_read_values__findnew_thread(struct perf_read_values *values,
					    u32 pid, u32 tid)
{
	int i;

	for (i = 0; i < values->threads; i++)
		if (values->pid[i] == pid && values->tid[i] == tid)
			return i;

	if (values->threads == values->threads_max)
		perf_read_values__enlarge_threads(values);

	i = values->threads++;
	values->pid[i] = pid;
	values->tid[i] = tid;
	values->value[i] = malloc(values->counters_max * sizeof(**values->value));
	if (!values->value[i])
		die("failed to allocate read_values counters array");

	return i;
}

static void perf_read_values__enlarge_counters(struct perf_read_values *values)
{
	int i;

	values->counters_max *= 2;
	values->counterrawid = realloc(values->counterrawid,
				       values->counters_max * sizeof(*values->counterrawid));
	values->countername = realloc(values->countername,
				      values->counters_max * sizeof(*values->countername));
	if (!values->counterrawid || !values->countername)
		die("failed to enlarge read_values counters arrays");

	for (i = 0; i < values->threads; i++) {
		values->value[i] = realloc(values->value[i],
					   values->counters_max * sizeof(**values->value));
		if (!values->value[i])
			die("failed to enlarge read_values counters arrays");
	}
}

static int perf_read_values__findnew_counter(struct perf_read_values *values,
					     u64 rawid, char *name)
{
	int i;

	for (i = 0; i < values->counters; i++)
		if (values->counterrawid[i] == rawid)
			return i;

	if (values->counters == values->counters_max)
		perf_read_values__enlarge_counters(values);

	i = values->counters++;
	values->counterrawid[i] = rawid;
	values->countername[i] = strdup(name);

	return i;
}

void perf_read_values_add_value(struct perf_read_values *values,
				u32 pid, u32 tid,
				u64 rawid, char *name, u64 value)
{
	int tindex, cindex;

	tindex = perf_read_values__findnew_thread(values, pid, tid);
	cindex = perf_read_values__findnew_counter(values, rawid, name);

	values->value[tindex][cindex] = value;
}

static void perf_read_values__display_pretty(FILE *fp,
					     struct perf_read_values *values)
{
	int i, j;
	int pidwidth, tidwidth;
	int *counterwidth;

	counterwidth = malloc(values->counters * sizeof(*counterwidth));
	if (!counterwidth)
		die("failed to allocate counterwidth array");
	tidwidth = 3;
	pidwidth = 3;
	for (j = 0; j < values->counters; j++)
		counterwidth[j] = strlen(values->countername[j]);
	for (i = 0; i < values->threads; i++) {
		int width;

		width = snprintf(NULL, 0, "%d", values->pid[i]);
		if (width > pidwidth)
			pidwidth = width;
		width = snprintf(NULL, 0, "%d", values->tid[i]);
		if (width > tidwidth)
			tidwidth = width;
		for (j = 0; j < values->counters; j++) {
			width = snprintf(NULL, 0, "%Lu", values->value[i][j]);
			if (width > counterwidth[j])
				counterwidth[j] = width;
		}
	}

	fprintf(fp, "# %*s  %*s", pidwidth, "PID", tidwidth, "TID");
	for (j = 0; j < values->counters; j++)
		fprintf(fp, "  %*s", counterwidth[j], values->countername[j]);
	fprintf(fp, "\n");

	for (i = 0; i < values->threads; i++) {
		fprintf(fp, "  %*d  %*d", pidwidth, values->pid[i],
			tidwidth, values->tid[i]);
		for (j = 0; j < values->counters; j++)
			fprintf(fp, "  %*Lu",
				counterwidth[j], values->value[i][j]);
		fprintf(fp, "\n");
	}
}

static void perf_read_values__display_raw(FILE *fp,
					  struct perf_read_values *values)
{
	int width, pidwidth, tidwidth, namewidth, rawwidth, countwidth;
	int i, j;

	tidwidth = 3; /* TID */
	pidwidth = 3; /* PID */
	namewidth = 4; /* "Name" */
	rawwidth = 3; /* "Raw" */
	countwidth = 5; /* "Count" */

	for (i = 0; i < values->threads; i++) {
		width = snprintf(NULL, 0, "%d", values->pid[i]);
		if (width > pidwidth)
			pidwidth = width;
		width = snprintf(NULL, 0, "%d", values->tid[i]);
		if (width > tidwidth)
			tidwidth = width;
	}
	for (j = 0; j < values->counters; j++) {
		width = strlen(values->countername[j]);
		if (width > namewidth)
			namewidth = width;
		width = snprintf(NULL, 0, "%llx", values->counterrawid[j]);
		if (width > rawwidth)
			rawwidth = width;
	}
	for (i = 0; i < values->threads; i++) {
		for (j = 0; j < values->counters; j++) {
			width = snprintf(NULL, 0, "%Lu", values->value[i][j]);
			if (width > countwidth)
				countwidth = width;
		}
	}

	fprintf(fp, "# %*s  %*s  %*s  %*s  %*s\n",
		pidwidth, "PID", tidwidth, "TID",
		namewidth, "Name", rawwidth, "Raw",
		countwidth, "Count");
	for (i = 0; i < values->threads; i++)
		for (j = 0; j < values->counters; j++)
			fprintf(fp, "  %*d  %*d  %*s  %*llx  %*Lu\n",
				pidwidth, values->pid[i],
				tidwidth, values->tid[i],
				namewidth, values->countername[j],
				rawwidth, values->counterrawid[j],
				countwidth, values->value[i][j]);
}

void perf_read_values_display(FILE *fp, struct perf_read_values *values,
			      int raw)
{
	if (raw)
		perf_read_values__display_raw(fp, values);
	else
		perf_read_values__display_pretty(fp, values);
}