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      1 #include <math.h>
      2 #include <linux/compiler.h>
      3 
      4 #include "../util/hist.h"
      5 #include "../util/util.h"
      6 #include "../util/sort.h"
      7 #include "../util/evsel.h"
      8 
      9 /* hist period print (hpp) functions */
     10 
     11 typedef int (*hpp_snprint_fn)(char *buf, size_t size, const char *fmt, ...);
     12 
     13 static int __hpp__fmt(struct perf_hpp *hpp, struct hist_entry *he,
     14 		      u64 (*get_field)(struct hist_entry *),
     15 		      const char *fmt, hpp_snprint_fn print_fn,
     16 		      bool fmt_percent)
     17 {
     18 	int ret;
     19 	struct hists *hists = he->hists;
     20 	struct perf_evsel *evsel = hists_to_evsel(hists);
     21 
     22 	if (fmt_percent) {
     23 		double percent = 0.0;
     24 
     25 		if (hists->stats.total_period)
     26 			percent = 100.0 * get_field(he) /
     27 				  hists->stats.total_period;
     28 
     29 		ret = print_fn(hpp->buf, hpp->size, fmt, percent);
     30 	} else
     31 		ret = print_fn(hpp->buf, hpp->size, fmt, get_field(he));
     32 
     33 	if (perf_evsel__is_group_event(evsel)) {
     34 		int prev_idx, idx_delta;
     35 		struct hist_entry *pair;
     36 		int nr_members = evsel->nr_members;
     37 
     38 		prev_idx = perf_evsel__group_idx(evsel);
     39 
     40 		list_for_each_entry(pair, &he->pairs.head, pairs.node) {
     41 			u64 period = get_field(pair);
     42 			u64 total = pair->hists->stats.total_period;
     43 
     44 			if (!total)
     45 				continue;
     46 
     47 			evsel = hists_to_evsel(pair->hists);
     48 			idx_delta = perf_evsel__group_idx(evsel) - prev_idx - 1;
     49 
     50 			while (idx_delta--) {
     51 				/*
     52 				 * zero-fill group members in the middle which
     53 				 * have no sample
     54 				 */
     55 				ret += print_fn(hpp->buf + ret, hpp->size - ret,
     56 						fmt, 0);
     57 			}
     58 
     59 			if (fmt_percent)
     60 				ret += print_fn(hpp->buf + ret, hpp->size - ret,
     61 						fmt, 100.0 * period / total);
     62 			else
     63 				ret += print_fn(hpp->buf + ret, hpp->size - ret,
     64 						fmt, period);
     65 
     66 			prev_idx = perf_evsel__group_idx(evsel);
     67 		}
     68 
     69 		idx_delta = nr_members - prev_idx - 1;
     70 
     71 		while (idx_delta--) {
     72 			/*
     73 			 * zero-fill group members at last which have no sample
     74 			 */
     75 			ret += print_fn(hpp->buf + ret, hpp->size - ret,
     76 					fmt, 0);
     77 		}
     78 	}
     79 	return ret;
     80 }
     81 
     82 #define __HPP_HEADER_FN(_type, _str, _min_width, _unit_width) 		\
     83 static int hpp__header_##_type(struct perf_hpp_fmt *fmt __maybe_unused,	\
     84 			       struct perf_hpp *hpp)			\
     85 {									\
     86 	int len = _min_width;						\
     87 									\
     88 	if (symbol_conf.event_group) {					\
     89 		struct perf_evsel *evsel = hpp->ptr;			\
     90 									\
     91 		len = max(len, evsel->nr_members * _unit_width);	\
     92 	}								\
     93 	return scnprintf(hpp->buf, hpp->size, "%*s", len, _str);	\
     94 }
     95 
     96 #define __HPP_WIDTH_FN(_type, _min_width, _unit_width) 			\
     97 static int hpp__width_##_type(struct perf_hpp_fmt *fmt __maybe_unused,	\
     98 			      struct perf_hpp *hpp __maybe_unused)	\
     99 {									\
    100 	int len = _min_width;						\
    101 									\
    102 	if (symbol_conf.event_group) {					\
    103 		struct perf_evsel *evsel = hpp->ptr;			\
    104 									\
    105 		len = max(len, evsel->nr_members * _unit_width);	\
    106 	}								\
    107 	return len;							\
    108 }
    109 
    110 #define __HPP_COLOR_PERCENT_FN(_type, _field)					\
    111 static u64 he_get_##_field(struct hist_entry *he)				\
    112 {										\
    113 	return he->stat._field;							\
    114 }										\
    115 										\
    116 static int hpp__color_##_type(struct perf_hpp_fmt *fmt __maybe_unused,		\
    117 			      struct perf_hpp *hpp, struct hist_entry *he) 	\
    118 {										\
    119 	return __hpp__fmt(hpp, he, he_get_##_field, " %6.2f%%",			\
    120 			  (hpp_snprint_fn)percent_color_snprintf, true);	\
    121 }
    122 
    123 #define __HPP_ENTRY_PERCENT_FN(_type, _field)					\
    124 static int hpp__entry_##_type(struct perf_hpp_fmt *_fmt __maybe_unused,		\
    125 			      struct perf_hpp *hpp, struct hist_entry *he) 	\
    126 {										\
    127 	const char *fmt = symbol_conf.field_sep ? " %.2f" : " %6.2f%%";		\
    128 	return __hpp__fmt(hpp, he, he_get_##_field, fmt,			\
    129 			  scnprintf, true);					\
    130 }
    131 
    132 #define __HPP_ENTRY_RAW_FN(_type, _field)					\
    133 static u64 he_get_raw_##_field(struct hist_entry *he)				\
    134 {										\
    135 	return he->stat._field;							\
    136 }										\
    137 										\
    138 static int hpp__entry_##_type(struct perf_hpp_fmt *_fmt __maybe_unused,		\
    139 			      struct perf_hpp *hpp, struct hist_entry *he) 	\
    140 {										\
    141 	const char *fmt = symbol_conf.field_sep ? " %"PRIu64 : " %11"PRIu64;	\
    142 	return __hpp__fmt(hpp, he, he_get_raw_##_field, fmt, scnprintf, false);	\
    143 }
    144 
    145 #define HPP_PERCENT_FNS(_type, _str, _field, _min_width, _unit_width)	\
    146 __HPP_HEADER_FN(_type, _str, _min_width, _unit_width)			\
    147 __HPP_WIDTH_FN(_type, _min_width, _unit_width)				\
    148 __HPP_COLOR_PERCENT_FN(_type, _field)					\
    149 __HPP_ENTRY_PERCENT_FN(_type, _field)
    150 
    151 #define HPP_RAW_FNS(_type, _str, _field, _min_width, _unit_width)	\
    152 __HPP_HEADER_FN(_type, _str, _min_width, _unit_width)			\
    153 __HPP_WIDTH_FN(_type, _min_width, _unit_width)				\
    154 __HPP_ENTRY_RAW_FN(_type, _field)
    155 
    156 
    157 HPP_PERCENT_FNS(overhead, "Overhead", period, 8, 8)
    158 HPP_PERCENT_FNS(overhead_sys, "sys", period_sys, 8, 8)
    159 HPP_PERCENT_FNS(overhead_us, "usr", period_us, 8, 8)
    160 HPP_PERCENT_FNS(overhead_guest_sys, "guest sys", period_guest_sys, 9, 8)
    161 HPP_PERCENT_FNS(overhead_guest_us, "guest usr", period_guest_us, 9, 8)
    162 
    163 HPP_RAW_FNS(samples, "Samples", nr_events, 12, 12)
    164 HPP_RAW_FNS(period, "Period", period, 12, 12)
    165 
    166 #define HPP__COLOR_PRINT_FNS(_name)			\
    167 	{						\
    168 		.header	= hpp__header_ ## _name,	\
    169 		.width	= hpp__width_ ## _name,		\
    170 		.color	= hpp__color_ ## _name,		\
    171 		.entry	= hpp__entry_ ## _name		\
    172 	}
    173 
    174 #define HPP__PRINT_FNS(_name)				\
    175 	{						\
    176 		.header	= hpp__header_ ## _name,	\
    177 		.width	= hpp__width_ ## _name,		\
    178 		.entry	= hpp__entry_ ## _name		\
    179 	}
    180 
    181 struct perf_hpp_fmt perf_hpp__format[] = {
    182 	HPP__COLOR_PRINT_FNS(overhead),
    183 	HPP__COLOR_PRINT_FNS(overhead_sys),
    184 	HPP__COLOR_PRINT_FNS(overhead_us),
    185 	HPP__COLOR_PRINT_FNS(overhead_guest_sys),
    186 	HPP__COLOR_PRINT_FNS(overhead_guest_us),
    187 	HPP__PRINT_FNS(samples),
    188 	HPP__PRINT_FNS(period)
    189 };
    190 
    191 LIST_HEAD(perf_hpp__list);
    192 
    193 
    194 #undef HPP__COLOR_PRINT_FNS
    195 #undef HPP__PRINT_FNS
    196 
    197 #undef HPP_PERCENT_FNS
    198 #undef HPP_RAW_FNS
    199 
    200 #undef __HPP_HEADER_FN
    201 #undef __HPP_WIDTH_FN
    202 #undef __HPP_COLOR_PERCENT_FN
    203 #undef __HPP_ENTRY_PERCENT_FN
    204 #undef __HPP_ENTRY_RAW_FN
    205 
    206 
    207 void perf_hpp__init(void)
    208 {
    209 	perf_hpp__column_enable(PERF_HPP__OVERHEAD);
    210 
    211 	if (symbol_conf.show_cpu_utilization) {
    212 		perf_hpp__column_enable(PERF_HPP__OVERHEAD_SYS);
    213 		perf_hpp__column_enable(PERF_HPP__OVERHEAD_US);
    214 
    215 		if (perf_guest) {
    216 			perf_hpp__column_enable(PERF_HPP__OVERHEAD_GUEST_SYS);
    217 			perf_hpp__column_enable(PERF_HPP__OVERHEAD_GUEST_US);
    218 		}
    219 	}
    220 
    221 	if (symbol_conf.show_nr_samples)
    222 		perf_hpp__column_enable(PERF_HPP__SAMPLES);
    223 
    224 	if (symbol_conf.show_total_period)
    225 		perf_hpp__column_enable(PERF_HPP__PERIOD);
    226 }
    227 
    228 void perf_hpp__column_register(struct perf_hpp_fmt *format)
    229 {
    230 	list_add_tail(&format->list, &perf_hpp__list);
    231 }
    232 
    233 void perf_hpp__column_enable(unsigned col)
    234 {
    235 	BUG_ON(col >= PERF_HPP__MAX_INDEX);
    236 	perf_hpp__column_register(&perf_hpp__format[col]);
    237 }
    238 
    239 int hist_entry__sort_snprintf(struct hist_entry *he, char *s, size_t size,
    240 			      struct hists *hists)
    241 {
    242 	const char *sep = symbol_conf.field_sep;
    243 	struct sort_entry *se;
    244 	int ret = 0;
    245 
    246 	list_for_each_entry(se, &hist_entry__sort_list, list) {
    247 		if (se->elide)
    248 			continue;
    249 
    250 		ret += scnprintf(s + ret, size - ret, "%s", sep ?: "  ");
    251 		ret += se->se_snprintf(he, s + ret, size - ret,
    252 				       hists__col_len(hists, se->se_width_idx));
    253 	}
    254 
    255 	return ret;
    256 }
    257 
    258 /*
    259  * See hists__fprintf to match the column widths
    260  */
    261 unsigned int hists__sort_list_width(struct hists *hists)
    262 {
    263 	struct perf_hpp_fmt *fmt;
    264 	struct sort_entry *se;
    265 	int i = 0, ret = 0;
    266 	struct perf_hpp dummy_hpp = {
    267 		.ptr	= hists_to_evsel(hists),
    268 	};
    269 
    270 	perf_hpp__for_each_format(fmt) {
    271 		if (i)
    272 			ret += 2;
    273 
    274 		ret += fmt->width(fmt, &dummy_hpp);
    275 	}
    276 
    277 	list_for_each_entry(se, &hist_entry__sort_list, list)
    278 		if (!se->elide)
    279 			ret += 2 + hists__col_len(hists, se->se_width_idx);
    280 
    281 	if (verbose) /* Addr + origin */
    282 		ret += 3 + BITS_PER_LONG / 4;
    283 
    284 	return ret;
    285 }
    286