perf tools: Use __maybe_used for unused variables
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / tools / perf / ui / hist.c
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1#include <math.h>
2
3#include "../util/hist.h"
4#include "../util/util.h"
5#include "../util/sort.h"
6
7
8/* hist period print (hpp) functions */
9static int hpp__header_overhead(struct perf_hpp *hpp)
10{
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11 const char *fmt = hpp->ptr ? "Baseline" : "Overhead";
12
13 return scnprintf(hpp->buf, hpp->size, fmt);
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14}
15
1d037ca1 16static int hpp__width_overhead(struct perf_hpp *hpp __maybe_unused)
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17{
18 return 8;
19}
20
21static int hpp__color_overhead(struct perf_hpp *hpp, struct hist_entry *he)
22{
23 double percent = 100.0 * he->period / hpp->total_period;
24
25 if (hpp->ptr) {
26 struct hists *old_hists = hpp->ptr;
27 u64 total_period = old_hists->stats.total_period;
28 u64 base_period = he->pair ? he->pair->period : 0;
29
30 if (total_period)
31 percent = 100.0 * base_period / total_period;
32 else
33 percent = 0.0;
34 }
35
36 return percent_color_snprintf(hpp->buf, hpp->size, " %5.2f%%", percent);
37}
38
39static int hpp__entry_overhead(struct perf_hpp *hpp, struct hist_entry *he)
40{
41 double percent = 100.0 * he->period / hpp->total_period;
9ffad987 42 const char *fmt = symbol_conf.field_sep ? "%.2f" : " %5.2f%%";
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43
44 if (hpp->ptr) {
45 struct hists *old_hists = hpp->ptr;
46 u64 total_period = old_hists->stats.total_period;
47 u64 base_period = he->pair ? he->pair->period : 0;
48
49 if (total_period)
50 percent = 100.0 * base_period / total_period;
51 else
52 percent = 0.0;
53 }
54
9ffad987 55 return scnprintf(hpp->buf, hpp->size, fmt, percent);
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56}
57
58static int hpp__header_overhead_sys(struct perf_hpp *hpp)
59{
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60 const char *fmt = symbol_conf.field_sep ? "%s" : "%6s";
61
62 return scnprintf(hpp->buf, hpp->size, fmt, "sys");
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63}
64
1d037ca1 65static int hpp__width_overhead_sys(struct perf_hpp *hpp __maybe_unused)
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66{
67 return 6;
68}
69
70static int hpp__color_overhead_sys(struct perf_hpp *hpp, struct hist_entry *he)
71{
72 double percent = 100.0 * he->period_sys / hpp->total_period;
73 return percent_color_snprintf(hpp->buf, hpp->size, "%5.2f%%", percent);
74}
75
76static int hpp__entry_overhead_sys(struct perf_hpp *hpp, struct hist_entry *he)
77{
78 double percent = 100.0 * he->period_sys / hpp->total_period;
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79 const char *fmt = symbol_conf.field_sep ? "%.2f" : "%5.2f%%";
80
81 return scnprintf(hpp->buf, hpp->size, fmt, percent);
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82}
83
84static int hpp__header_overhead_us(struct perf_hpp *hpp)
85{
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86 const char *fmt = symbol_conf.field_sep ? "%s" : "%6s";
87
88 return scnprintf(hpp->buf, hpp->size, fmt, "user");
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89}
90
1d037ca1 91static int hpp__width_overhead_us(struct perf_hpp *hpp __maybe_unused)
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92{
93 return 6;
94}
95
96static int hpp__color_overhead_us(struct perf_hpp *hpp, struct hist_entry *he)
97{
98 double percent = 100.0 * he->period_us / hpp->total_period;
99 return percent_color_snprintf(hpp->buf, hpp->size, "%5.2f%%", percent);
100}
101
102static int hpp__entry_overhead_us(struct perf_hpp *hpp, struct hist_entry *he)
103{
104 double percent = 100.0 * he->period_us / hpp->total_period;
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105 const char *fmt = symbol_conf.field_sep ? "%.2f" : "%5.2f%%";
106
107 return scnprintf(hpp->buf, hpp->size, fmt, percent);
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108}
109
110static int hpp__header_overhead_guest_sys(struct perf_hpp *hpp)
111{
112 return scnprintf(hpp->buf, hpp->size, "guest sys");
113}
114
1d037ca1 115static int hpp__width_overhead_guest_sys(struct perf_hpp *hpp __maybe_unused)
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116{
117 return 9;
118}
119
120static int hpp__color_overhead_guest_sys(struct perf_hpp *hpp,
121 struct hist_entry *he)
122{
123 double percent = 100.0 * he->period_guest_sys / hpp->total_period;
124 return percent_color_snprintf(hpp->buf, hpp->size, " %5.2f%% ", percent);
125}
126
127static int hpp__entry_overhead_guest_sys(struct perf_hpp *hpp,
128 struct hist_entry *he)
129{
130 double percent = 100.0 * he->period_guest_sys / hpp->total_period;
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131 const char *fmt = symbol_conf.field_sep ? "%.2f" : " %5.2f%% ";
132
133 return scnprintf(hpp->buf, hpp->size, fmt, percent);
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134}
135
136static int hpp__header_overhead_guest_us(struct perf_hpp *hpp)
137{
138 return scnprintf(hpp->buf, hpp->size, "guest usr");
139}
140
1d037ca1 141static int hpp__width_overhead_guest_us(struct perf_hpp *hpp __maybe_unused)
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142{
143 return 9;
144}
145
146static int hpp__color_overhead_guest_us(struct perf_hpp *hpp,
147 struct hist_entry *he)
148{
149 double percent = 100.0 * he->period_guest_us / hpp->total_period;
150 return percent_color_snprintf(hpp->buf, hpp->size, " %5.2f%% ", percent);
151}
152
153static int hpp__entry_overhead_guest_us(struct perf_hpp *hpp,
154 struct hist_entry *he)
155{
156 double percent = 100.0 * he->period_guest_us / hpp->total_period;
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157 const char *fmt = symbol_conf.field_sep ? "%.2f" : " %5.2f%% ";
158
159 return scnprintf(hpp->buf, hpp->size, fmt, percent);
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160}
161
162static int hpp__header_samples(struct perf_hpp *hpp)
163{
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164 const char *fmt = symbol_conf.field_sep ? "%s" : "%11s";
165
166 return scnprintf(hpp->buf, hpp->size, fmt, "Samples");
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167}
168
1d037ca1 169static int hpp__width_samples(struct perf_hpp *hpp __maybe_unused)
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170{
171 return 11;
172}
173
174static int hpp__entry_samples(struct perf_hpp *hpp, struct hist_entry *he)
175{
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176 const char *fmt = symbol_conf.field_sep ? "%" PRIu64 : "%11" PRIu64;
177
178 return scnprintf(hpp->buf, hpp->size, fmt, he->nr_events);
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179}
180
181static int hpp__header_period(struct perf_hpp *hpp)
182{
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183 const char *fmt = symbol_conf.field_sep ? "%s" : "%12s";
184
185 return scnprintf(hpp->buf, hpp->size, fmt, "Period");
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186}
187
1d037ca1 188static int hpp__width_period(struct perf_hpp *hpp __maybe_unused)
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189{
190 return 12;
191}
192
193static int hpp__entry_period(struct perf_hpp *hpp, struct hist_entry *he)
194{
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195 const char *fmt = symbol_conf.field_sep ? "%" PRIu64 : "%12" PRIu64;
196
197 return scnprintf(hpp->buf, hpp->size, fmt, he->period);
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198}
199
200static int hpp__header_delta(struct perf_hpp *hpp)
201{
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202 const char *fmt = symbol_conf.field_sep ? "%s" : "%7s";
203
204 return scnprintf(hpp->buf, hpp->size, fmt, "Delta");
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205}
206
1d037ca1 207static int hpp__width_delta(struct perf_hpp *hpp __maybe_unused)
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208{
209 return 7;
210}
211
212static int hpp__entry_delta(struct perf_hpp *hpp, struct hist_entry *he)
213{
214 struct hists *pair_hists = hpp->ptr;
215 u64 old_total, new_total;
216 double old_percent = 0, new_percent = 0;
217 double diff;
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218 const char *fmt = symbol_conf.field_sep ? "%s" : "%7.7s";
219 char buf[32] = " ";
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220
221 old_total = pair_hists->stats.total_period;
222 if (old_total > 0 && he->pair)
223 old_percent = 100.0 * he->pair->period / old_total;
224
225 new_total = hpp->total_period;
226 if (new_total > 0)
227 new_percent = 100.0 * he->period / new_total;
228
229 diff = new_percent - old_percent;
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230 if (fabs(diff) >= 0.01)
231 scnprintf(buf, sizeof(buf), "%+4.2F%%", diff);
ea251d51 232
9ffad987 233 return scnprintf(hpp->buf, hpp->size, fmt, buf);
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234}
235
236static int hpp__header_displ(struct perf_hpp *hpp)
237{
238 return scnprintf(hpp->buf, hpp->size, "Displ.");
239}
240
1d037ca1 241static int hpp__width_displ(struct perf_hpp *hpp __maybe_unused)
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242{
243 return 6;
244}
245
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246static int hpp__entry_displ(struct perf_hpp *hpp,
247 struct hist_entry *he __maybe_unused)
ea251d51 248{
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249 const char *fmt = symbol_conf.field_sep ? "%s" : "%6.6s";
250 char buf[32] = " ";
ea251d51 251
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252 if (hpp->displacement)
253 scnprintf(buf, sizeof(buf), "%+4ld", hpp->displacement);
ea251d51 254
9ffad987 255 return scnprintf(hpp->buf, hpp->size, fmt, buf);
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256}
257
258#define HPP__COLOR_PRINT_FNS(_name) \
259 .header = hpp__header_ ## _name, \
260 .width = hpp__width_ ## _name, \
261 .color = hpp__color_ ## _name, \
262 .entry = hpp__entry_ ## _name
263
264#define HPP__PRINT_FNS(_name) \
265 .header = hpp__header_ ## _name, \
266 .width = hpp__width_ ## _name, \
267 .entry = hpp__entry_ ## _name
268
269struct perf_hpp_fmt perf_hpp__format[] = {
270 { .cond = true, HPP__COLOR_PRINT_FNS(overhead) },
271 { .cond = false, HPP__COLOR_PRINT_FNS(overhead_sys) },
272 { .cond = false, HPP__COLOR_PRINT_FNS(overhead_us) },
273 { .cond = false, HPP__COLOR_PRINT_FNS(overhead_guest_sys) },
274 { .cond = false, HPP__COLOR_PRINT_FNS(overhead_guest_us) },
275 { .cond = false, HPP__PRINT_FNS(samples) },
276 { .cond = false, HPP__PRINT_FNS(period) },
277 { .cond = false, HPP__PRINT_FNS(delta) },
278 { .cond = false, HPP__PRINT_FNS(displ) }
279};
280
281#undef HPP__COLOR_PRINT_FNS
282#undef HPP__PRINT_FNS
283
284void perf_hpp__init(bool need_pair, bool show_displacement)
285{
286 if (symbol_conf.show_cpu_utilization) {
287 perf_hpp__format[PERF_HPP__OVERHEAD_SYS].cond = true;
288 perf_hpp__format[PERF_HPP__OVERHEAD_US].cond = true;
289
290 if (perf_guest) {
291 perf_hpp__format[PERF_HPP__OVERHEAD_GUEST_SYS].cond = true;
292 perf_hpp__format[PERF_HPP__OVERHEAD_GUEST_US].cond = true;
293 }
294 }
295
296 if (symbol_conf.show_nr_samples)
297 perf_hpp__format[PERF_HPP__SAMPLES].cond = true;
298
299 if (symbol_conf.show_total_period)
300 perf_hpp__format[PERF_HPP__PERIOD].cond = true;
301
302 if (need_pair) {
303 perf_hpp__format[PERF_HPP__DELTA].cond = true;
304
305 if (show_displacement)
306 perf_hpp__format[PERF_HPP__DISPL].cond = true;
307 }
308}
309
310static inline void advance_hpp(struct perf_hpp *hpp, int inc)
311{
312 hpp->buf += inc;
313 hpp->size -= inc;
314}
315
316int hist_entry__period_snprintf(struct perf_hpp *hpp, struct hist_entry *he,
317 bool color)
318{
319 const char *sep = symbol_conf.field_sep;
320 char *start = hpp->buf;
321 int i, ret;
322
323 if (symbol_conf.exclude_other && !he->parent)
324 return 0;
325
326 for (i = 0; i < PERF_HPP__MAX_INDEX; i++) {
327 if (!perf_hpp__format[i].cond)
328 continue;
329
330 if (!sep || i > 0) {
331 ret = scnprintf(hpp->buf, hpp->size, "%s", sep ?: " ");
332 advance_hpp(hpp, ret);
333 }
334
335 if (color && perf_hpp__format[i].color)
336 ret = perf_hpp__format[i].color(hpp, he);
337 else
338 ret = perf_hpp__format[i].entry(hpp, he);
339
340 advance_hpp(hpp, ret);
341 }
342
343 return hpp->buf - start;
344}
345
346int hist_entry__sort_snprintf(struct hist_entry *he, char *s, size_t size,
347 struct hists *hists)
348{
349 const char *sep = symbol_conf.field_sep;
350 struct sort_entry *se;
351 int ret = 0;
352
353 list_for_each_entry(se, &hist_entry__sort_list, list) {
354 if (se->elide)
355 continue;
356
357 ret += scnprintf(s + ret, size - ret, "%s", sep ?: " ");
358 ret += se->se_snprintf(he, s + ret, size - ret,
359 hists__col_len(hists, se->se_width_idx));
360 }
361
362 return ret;
363}
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364
365/*
366 * See hists__fprintf to match the column widths
367 */
368unsigned int hists__sort_list_width(struct hists *hists)
369{
370 struct sort_entry *se;
371 int i, ret = 0;
372
373 for (i = 0; i < PERF_HPP__MAX_INDEX; i++) {
374 if (!perf_hpp__format[i].cond)
375 continue;
376 if (i)
377 ret += 2;
378
379 ret += perf_hpp__format[i].width(NULL);
380 }
381
382 list_for_each_entry(se, &hist_entry__sort_list, list)
383 if (!se->elide)
384 ret += 2 + hists__col_len(hists, se->se_width_idx);
385
386 if (verbose) /* Addr + origin */
387 ret += 3 + BITS_PER_LONG / 4;
388
389 return ret;
390}