Arnaldo Carvalho de Melo | 86a9eee | 2009-12-14 20:09:31 -0200 | [diff] [blame] | 1 | /* |
| 2 | * builtin-diff.c |
| 3 | * |
| 4 | * Builtin diff command: Analyze two perf.data input files, look up and read |
| 5 | * DSOs and symbol information, sort them and produce a diff. |
| 6 | */ |
| 7 | #include "builtin.h" |
| 8 | |
| 9 | #include "util/debug.h" |
| 10 | #include "util/event.h" |
| 11 | #include "util/hist.h" |
Arnaldo Carvalho de Melo | 743eb86 | 2011-11-28 07:56:39 -0200 | [diff] [blame] | 12 | #include "util/evsel.h" |
Jiri Olsa | 863e451 | 2012-09-06 17:46:55 +0200 | [diff] [blame] | 13 | #include "util/evlist.h" |
Arnaldo Carvalho de Melo | 86a9eee | 2009-12-14 20:09:31 -0200 | [diff] [blame] | 14 | #include "util/session.h" |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 15 | #include "util/tool.h" |
Arnaldo Carvalho de Melo | 86a9eee | 2009-12-14 20:09:31 -0200 | [diff] [blame] | 16 | #include "util/sort.h" |
| 17 | #include "util/symbol.h" |
| 18 | #include "util/util.h" |
| 19 | |
| 20 | #include <stdlib.h> |
Jiri Olsa | 345dc0b | 2013-02-03 20:08:34 +0100 | [diff] [blame] | 21 | #include <math.h> |
| 22 | |
| 23 | /* Diff command specific HPP columns. */ |
| 24 | enum { |
| 25 | PERF_HPP_DIFF__BASELINE, |
| 26 | PERF_HPP_DIFF__PERIOD, |
| 27 | PERF_HPP_DIFF__PERIOD_BASELINE, |
| 28 | PERF_HPP_DIFF__DELTA, |
| 29 | PERF_HPP_DIFF__RATIO, |
| 30 | PERF_HPP_DIFF__WEIGHTED_DIFF, |
| 31 | PERF_HPP_DIFF__FORMULA, |
| 32 | |
| 33 | PERF_HPP_DIFF__MAX_INDEX |
| 34 | }; |
| 35 | |
| 36 | struct diff_hpp_fmt { |
| 37 | struct perf_hpp_fmt fmt; |
| 38 | int idx; |
| 39 | char *header; |
| 40 | int header_width; |
| 41 | }; |
Arnaldo Carvalho de Melo | 86a9eee | 2009-12-14 20:09:31 -0200 | [diff] [blame] | 42 | |
Jiri Olsa | ec30842 | 2013-03-25 00:02:01 +0100 | [diff] [blame] | 43 | struct data__file { |
| 44 | struct perf_session *session; |
| 45 | const char *file; |
| 46 | int idx; |
Jiri Olsa | 22aeb7f | 2012-12-01 22:00:00 +0100 | [diff] [blame] | 47 | struct hists *hists; |
Jiri Olsa | c818b49 | 2012-12-01 21:57:04 +0100 | [diff] [blame] | 48 | struct diff_hpp_fmt fmt[PERF_HPP_DIFF__MAX_INDEX]; |
Jiri Olsa | ec30842 | 2013-03-25 00:02:01 +0100 | [diff] [blame] | 49 | }; |
| 50 | |
| 51 | static struct data__file *data__files; |
| 52 | static int data__files_cnt; |
| 53 | |
| 54 | #define data__for_each_file_start(i, d, s) \ |
| 55 | for (i = s, d = &data__files[s]; \ |
| 56 | i < data__files_cnt; \ |
| 57 | i++, d = &data__files[i]) |
| 58 | |
| 59 | #define data__for_each_file(i, d) data__for_each_file_start(i, d, 0) |
Jiri Olsa | 22aeb7f | 2012-12-01 22:00:00 +0100 | [diff] [blame] | 60 | #define data__for_each_file_new(i, d) data__for_each_file_start(i, d, 1) |
Jiri Olsa | ec30842 | 2013-03-25 00:02:01 +0100 | [diff] [blame] | 61 | |
| 62 | static char diff__default_sort_order[] = "dso,symbol"; |
| 63 | static bool force; |
Jiri Olsa | 61949b2 | 2012-10-05 16:44:44 +0200 | [diff] [blame] | 64 | static bool show_period; |
Jiri Olsa | ed279da | 2012-10-05 16:44:45 +0200 | [diff] [blame] | 65 | static bool show_formula; |
Jiri Olsa | a06d143 | 2012-10-05 16:44:40 +0200 | [diff] [blame] | 66 | static bool show_baseline_only; |
Jiri Olsa | 5f3f8d3 | 2012-11-25 23:10:20 +0100 | [diff] [blame] | 67 | static unsigned int sort_compute; |
Arnaldo Carvalho de Melo | 86a9eee | 2009-12-14 20:09:31 -0200 | [diff] [blame] | 68 | |
Jiri Olsa | 81d5f95 | 2012-10-05 16:44:43 +0200 | [diff] [blame] | 69 | static s64 compute_wdiff_w1; |
| 70 | static s64 compute_wdiff_w2; |
| 71 | |
Jiri Olsa | 7aaf6b3 | 2012-10-05 16:44:41 +0200 | [diff] [blame] | 72 | enum { |
| 73 | COMPUTE_DELTA, |
| 74 | COMPUTE_RATIO, |
Jiri Olsa | 81d5f95 | 2012-10-05 16:44:43 +0200 | [diff] [blame] | 75 | COMPUTE_WEIGHTED_DIFF, |
Jiri Olsa | 7aaf6b3 | 2012-10-05 16:44:41 +0200 | [diff] [blame] | 76 | COMPUTE_MAX, |
| 77 | }; |
| 78 | |
| 79 | const char *compute_names[COMPUTE_MAX] = { |
| 80 | [COMPUTE_DELTA] = "delta", |
| 81 | [COMPUTE_RATIO] = "ratio", |
Jiri Olsa | 81d5f95 | 2012-10-05 16:44:43 +0200 | [diff] [blame] | 82 | [COMPUTE_WEIGHTED_DIFF] = "wdiff", |
Jiri Olsa | 7aaf6b3 | 2012-10-05 16:44:41 +0200 | [diff] [blame] | 83 | }; |
| 84 | |
| 85 | static int compute; |
| 86 | |
Jiri Olsa | 345dc0b | 2013-02-03 20:08:34 +0100 | [diff] [blame] | 87 | static int compute_2_hpp[COMPUTE_MAX] = { |
| 88 | [COMPUTE_DELTA] = PERF_HPP_DIFF__DELTA, |
| 89 | [COMPUTE_RATIO] = PERF_HPP_DIFF__RATIO, |
| 90 | [COMPUTE_WEIGHTED_DIFF] = PERF_HPP_DIFF__WEIGHTED_DIFF, |
| 91 | }; |
| 92 | |
| 93 | #define MAX_COL_WIDTH 70 |
| 94 | |
| 95 | static struct header_column { |
| 96 | const char *name; |
| 97 | int width; |
| 98 | } columns[PERF_HPP_DIFF__MAX_INDEX] = { |
| 99 | [PERF_HPP_DIFF__BASELINE] = { |
| 100 | .name = "Baseline", |
| 101 | }, |
| 102 | [PERF_HPP_DIFF__PERIOD] = { |
| 103 | .name = "Period", |
| 104 | .width = 14, |
| 105 | }, |
| 106 | [PERF_HPP_DIFF__PERIOD_BASELINE] = { |
| 107 | .name = "Base period", |
| 108 | .width = 14, |
| 109 | }, |
| 110 | [PERF_HPP_DIFF__DELTA] = { |
| 111 | .name = "Delta", |
| 112 | .width = 7, |
| 113 | }, |
| 114 | [PERF_HPP_DIFF__RATIO] = { |
| 115 | .name = "Ratio", |
| 116 | .width = 14, |
| 117 | }, |
| 118 | [PERF_HPP_DIFF__WEIGHTED_DIFF] = { |
| 119 | .name = "Weighted diff", |
| 120 | .width = 14, |
| 121 | }, |
| 122 | [PERF_HPP_DIFF__FORMULA] = { |
| 123 | .name = "Formula", |
| 124 | .width = MAX_COL_WIDTH, |
| 125 | } |
| 126 | }; |
| 127 | |
Jiri Olsa | 81d5f95 | 2012-10-05 16:44:43 +0200 | [diff] [blame] | 128 | static int setup_compute_opt_wdiff(char *opt) |
| 129 | { |
| 130 | char *w1_str = opt; |
| 131 | char *w2_str; |
| 132 | |
| 133 | int ret = -EINVAL; |
| 134 | |
| 135 | if (!opt) |
| 136 | goto out; |
| 137 | |
| 138 | w2_str = strchr(opt, ','); |
| 139 | if (!w2_str) |
| 140 | goto out; |
| 141 | |
| 142 | *w2_str++ = 0x0; |
| 143 | if (!*w2_str) |
| 144 | goto out; |
| 145 | |
| 146 | compute_wdiff_w1 = strtol(w1_str, NULL, 10); |
| 147 | compute_wdiff_w2 = strtol(w2_str, NULL, 10); |
| 148 | |
| 149 | if (!compute_wdiff_w1 || !compute_wdiff_w2) |
| 150 | goto out; |
| 151 | |
| 152 | pr_debug("compute wdiff w1(%" PRId64 ") w2(%" PRId64 ")\n", |
| 153 | compute_wdiff_w1, compute_wdiff_w2); |
| 154 | |
| 155 | ret = 0; |
| 156 | |
| 157 | out: |
| 158 | if (ret) |
| 159 | pr_err("Failed: wrong weight data, use 'wdiff:w1,w2'\n"); |
| 160 | |
| 161 | return ret; |
| 162 | } |
| 163 | |
| 164 | static int setup_compute_opt(char *opt) |
| 165 | { |
| 166 | if (compute == COMPUTE_WEIGHTED_DIFF) |
| 167 | return setup_compute_opt_wdiff(opt); |
| 168 | |
| 169 | if (opt) { |
| 170 | pr_err("Failed: extra option specified '%s'", opt); |
| 171 | return -EINVAL; |
| 172 | } |
| 173 | |
| 174 | return 0; |
| 175 | } |
| 176 | |
Jiri Olsa | 7aaf6b3 | 2012-10-05 16:44:41 +0200 | [diff] [blame] | 177 | static int setup_compute(const struct option *opt, const char *str, |
| 178 | int unset __maybe_unused) |
| 179 | { |
| 180 | int *cp = (int *) opt->value; |
Jiri Olsa | 81d5f95 | 2012-10-05 16:44:43 +0200 | [diff] [blame] | 181 | char *cstr = (char *) str; |
| 182 | char buf[50]; |
Jiri Olsa | 7aaf6b3 | 2012-10-05 16:44:41 +0200 | [diff] [blame] | 183 | unsigned i; |
Jiri Olsa | 81d5f95 | 2012-10-05 16:44:43 +0200 | [diff] [blame] | 184 | char *option; |
Jiri Olsa | 7aaf6b3 | 2012-10-05 16:44:41 +0200 | [diff] [blame] | 185 | |
| 186 | if (!str) { |
| 187 | *cp = COMPUTE_DELTA; |
| 188 | return 0; |
| 189 | } |
| 190 | |
Jiri Olsa | 81d5f95 | 2012-10-05 16:44:43 +0200 | [diff] [blame] | 191 | option = strchr(str, ':'); |
| 192 | if (option) { |
| 193 | unsigned len = option++ - str; |
| 194 | |
| 195 | /* |
| 196 | * The str data are not writeable, so we need |
| 197 | * to use another buffer. |
| 198 | */ |
| 199 | |
| 200 | /* No option value is longer. */ |
| 201 | if (len >= sizeof(buf)) |
| 202 | return -EINVAL; |
| 203 | |
| 204 | strncpy(buf, str, len); |
| 205 | buf[len] = 0x0; |
| 206 | cstr = buf; |
| 207 | } |
| 208 | |
Jiri Olsa | 7aaf6b3 | 2012-10-05 16:44:41 +0200 | [diff] [blame] | 209 | for (i = 0; i < COMPUTE_MAX; i++) |
Jiri Olsa | 81d5f95 | 2012-10-05 16:44:43 +0200 | [diff] [blame] | 210 | if (!strcmp(cstr, compute_names[i])) { |
Jiri Olsa | 7aaf6b3 | 2012-10-05 16:44:41 +0200 | [diff] [blame] | 211 | *cp = i; |
Jiri Olsa | 81d5f95 | 2012-10-05 16:44:43 +0200 | [diff] [blame] | 212 | return setup_compute_opt(option); |
Jiri Olsa | 7aaf6b3 | 2012-10-05 16:44:41 +0200 | [diff] [blame] | 213 | } |
| 214 | |
| 215 | pr_err("Failed: '%s' is not computation method " |
Jiri Olsa | 81d5f95 | 2012-10-05 16:44:43 +0200 | [diff] [blame] | 216 | "(use 'delta','ratio' or 'wdiff')\n", str); |
Jiri Olsa | 7aaf6b3 | 2012-10-05 16:44:41 +0200 | [diff] [blame] | 217 | return -EINVAL; |
| 218 | } |
| 219 | |
Jiri Olsa | ef358e6 | 2012-10-21 23:31:51 +0200 | [diff] [blame] | 220 | static double period_percent(struct hist_entry *he, u64 period) |
Jiri Olsa | 96c47f1 | 2012-10-05 16:44:42 +0200 | [diff] [blame] | 221 | { |
| 222 | u64 total = he->hists->stats.total_period; |
| 223 | return (period * 100.0) / total; |
| 224 | } |
| 225 | |
Jiri Olsa | ef358e6 | 2012-10-21 23:31:51 +0200 | [diff] [blame] | 226 | static double compute_delta(struct hist_entry *he, struct hist_entry *pair) |
Jiri Olsa | 96c47f1 | 2012-10-05 16:44:42 +0200 | [diff] [blame] | 227 | { |
Jiri Olsa | ef358e6 | 2012-10-21 23:31:51 +0200 | [diff] [blame] | 228 | double old_percent = period_percent(he, he->stat.period); |
| 229 | double new_percent = period_percent(pair, pair->stat.period); |
Jiri Olsa | 96c47f1 | 2012-10-05 16:44:42 +0200 | [diff] [blame] | 230 | |
Jiri Olsa | 9af303e | 2012-12-01 21:15:40 +0100 | [diff] [blame] | 231 | pair->diff.period_ratio_delta = new_percent - old_percent; |
| 232 | pair->diff.computed = true; |
| 233 | return pair->diff.period_ratio_delta; |
Jiri Olsa | 96c47f1 | 2012-10-05 16:44:42 +0200 | [diff] [blame] | 234 | } |
| 235 | |
Jiri Olsa | ef358e6 | 2012-10-21 23:31:51 +0200 | [diff] [blame] | 236 | static double compute_ratio(struct hist_entry *he, struct hist_entry *pair) |
Jiri Olsa | 96c47f1 | 2012-10-05 16:44:42 +0200 | [diff] [blame] | 237 | { |
Jiri Olsa | 9af303e | 2012-12-01 21:15:40 +0100 | [diff] [blame] | 238 | double old_period = he->stat.period ?: 1; |
| 239 | double new_period = pair->stat.period; |
Jiri Olsa | 96c47f1 | 2012-10-05 16:44:42 +0200 | [diff] [blame] | 240 | |
Jiri Olsa | 9af303e | 2012-12-01 21:15:40 +0100 | [diff] [blame] | 241 | pair->diff.computed = true; |
| 242 | pair->diff.period_ratio = new_period / old_period; |
| 243 | return pair->diff.period_ratio; |
Jiri Olsa | 96c47f1 | 2012-10-05 16:44:42 +0200 | [diff] [blame] | 244 | } |
| 245 | |
Jiri Olsa | ef358e6 | 2012-10-21 23:31:51 +0200 | [diff] [blame] | 246 | static s64 compute_wdiff(struct hist_entry *he, struct hist_entry *pair) |
Jiri Olsa | 81d5f95 | 2012-10-05 16:44:43 +0200 | [diff] [blame] | 247 | { |
Jiri Olsa | 9af303e | 2012-12-01 21:15:40 +0100 | [diff] [blame] | 248 | u64 old_period = he->stat.period; |
| 249 | u64 new_period = pair->stat.period; |
Jiri Olsa | 81d5f95 | 2012-10-05 16:44:43 +0200 | [diff] [blame] | 250 | |
Jiri Olsa | 9af303e | 2012-12-01 21:15:40 +0100 | [diff] [blame] | 251 | pair->diff.computed = true; |
| 252 | pair->diff.wdiff = new_period * compute_wdiff_w2 - |
| 253 | old_period * compute_wdiff_w1; |
Jiri Olsa | 81d5f95 | 2012-10-05 16:44:43 +0200 | [diff] [blame] | 254 | |
Jiri Olsa | 9af303e | 2012-12-01 21:15:40 +0100 | [diff] [blame] | 255 | return pair->diff.wdiff; |
Jiri Olsa | 81d5f95 | 2012-10-05 16:44:43 +0200 | [diff] [blame] | 256 | } |
| 257 | |
Jiri Olsa | f4c8bae | 2012-11-28 14:52:41 +0100 | [diff] [blame] | 258 | static int formula_delta(struct hist_entry *he, struct hist_entry *pair, |
| 259 | char *buf, size_t size) |
Jiri Olsa | ed279da | 2012-10-05 16:44:45 +0200 | [diff] [blame] | 260 | { |
Jiri Olsa | ed279da | 2012-10-05 16:44:45 +0200 | [diff] [blame] | 261 | return scnprintf(buf, size, |
| 262 | "(%" PRIu64 " * 100 / %" PRIu64 ") - " |
| 263 | "(%" PRIu64 " * 100 / %" PRIu64 ")", |
Jiri Olsa | 9af303e | 2012-12-01 21:15:40 +0100 | [diff] [blame] | 264 | pair->stat.period, pair->hists->stats.total_period, |
| 265 | he->stat.period, he->hists->stats.total_period); |
Jiri Olsa | ed279da | 2012-10-05 16:44:45 +0200 | [diff] [blame] | 266 | } |
| 267 | |
Jiri Olsa | f4c8bae | 2012-11-28 14:52:41 +0100 | [diff] [blame] | 268 | static int formula_ratio(struct hist_entry *he, struct hist_entry *pair, |
| 269 | char *buf, size_t size) |
Jiri Olsa | ed279da | 2012-10-05 16:44:45 +0200 | [diff] [blame] | 270 | { |
Jiri Olsa | 9af303e | 2012-12-01 21:15:40 +0100 | [diff] [blame] | 271 | double old_period = he->stat.period; |
| 272 | double new_period = pair->stat.period; |
Jiri Olsa | ed279da | 2012-10-05 16:44:45 +0200 | [diff] [blame] | 273 | |
| 274 | return scnprintf(buf, size, "%.0F / %.0F", new_period, old_period); |
| 275 | } |
| 276 | |
Jiri Olsa | f4c8bae | 2012-11-28 14:52:41 +0100 | [diff] [blame] | 277 | static int formula_wdiff(struct hist_entry *he, struct hist_entry *pair, |
| 278 | char *buf, size_t size) |
Jiri Olsa | ed279da | 2012-10-05 16:44:45 +0200 | [diff] [blame] | 279 | { |
Jiri Olsa | 9af303e | 2012-12-01 21:15:40 +0100 | [diff] [blame] | 280 | u64 old_period = he->stat.period; |
| 281 | u64 new_period = pair->stat.period; |
Jiri Olsa | ed279da | 2012-10-05 16:44:45 +0200 | [diff] [blame] | 282 | |
| 283 | return scnprintf(buf, size, |
| 284 | "(%" PRIu64 " * " "%" PRId64 ") - (%" PRIu64 " * " "%" PRId64 ")", |
| 285 | new_period, compute_wdiff_w2, old_period, compute_wdiff_w1); |
| 286 | } |
| 287 | |
Jiri Olsa | ef358e6 | 2012-10-21 23:31:51 +0200 | [diff] [blame] | 288 | static int formula_fprintf(struct hist_entry *he, struct hist_entry *pair, |
| 289 | char *buf, size_t size) |
Jiri Olsa | ed279da | 2012-10-05 16:44:45 +0200 | [diff] [blame] | 290 | { |
| 291 | switch (compute) { |
| 292 | case COMPUTE_DELTA: |
Jiri Olsa | f4c8bae | 2012-11-28 14:52:41 +0100 | [diff] [blame] | 293 | return formula_delta(he, pair, buf, size); |
Jiri Olsa | ed279da | 2012-10-05 16:44:45 +0200 | [diff] [blame] | 294 | case COMPUTE_RATIO: |
Jiri Olsa | f4c8bae | 2012-11-28 14:52:41 +0100 | [diff] [blame] | 295 | return formula_ratio(he, pair, buf, size); |
Jiri Olsa | ed279da | 2012-10-05 16:44:45 +0200 | [diff] [blame] | 296 | case COMPUTE_WEIGHTED_DIFF: |
Jiri Olsa | f4c8bae | 2012-11-28 14:52:41 +0100 | [diff] [blame] | 297 | return formula_wdiff(he, pair, buf, size); |
Jiri Olsa | ed279da | 2012-10-05 16:44:45 +0200 | [diff] [blame] | 298 | default: |
| 299 | BUG_ON(1); |
| 300 | } |
| 301 | |
| 302 | return -1; |
| 303 | } |
| 304 | |
Arnaldo Carvalho de Melo | 1c02c4d | 2010-05-10 13:04:11 -0300 | [diff] [blame] | 305 | static int hists__add_entry(struct hists *self, |
Andi Kleen | 0548429 | 2013-01-24 16:10:29 +0100 | [diff] [blame] | 306 | struct addr_location *al, u64 period, |
Andi Kleen | 475eeab | 2013-09-20 07:40:43 -0700 | [diff] [blame^] | 307 | u64 weight, u64 transaction) |
Arnaldo Carvalho de Melo | 86a9eee | 2009-12-14 20:09:31 -0200 | [diff] [blame] | 308 | { |
Andi Kleen | 475eeab | 2013-09-20 07:40:43 -0700 | [diff] [blame^] | 309 | if (__hists__add_entry(self, al, NULL, period, weight, transaction) |
| 310 | != NULL) |
Arnaldo Carvalho de Melo | 28e2a10 | 2010-05-09 13:02:23 -0300 | [diff] [blame] | 311 | return 0; |
| 312 | return -ENOMEM; |
Arnaldo Carvalho de Melo | 86a9eee | 2009-12-14 20:09:31 -0200 | [diff] [blame] | 313 | } |
| 314 | |
Irina Tirdea | 1d037ca | 2012-09-11 01:15:03 +0300 | [diff] [blame] | 315 | static int diff__process_sample_event(struct perf_tool *tool __maybe_unused, |
Arnaldo Carvalho de Melo | d20deb6 | 2011-11-25 08:19:45 -0200 | [diff] [blame] | 316 | union perf_event *event, |
Arnaldo Carvalho de Melo | 8d50e5b | 2011-01-29 13:02:00 -0200 | [diff] [blame] | 317 | struct perf_sample *sample, |
Jiri Olsa | 863e451 | 2012-09-06 17:46:55 +0200 | [diff] [blame] | 318 | struct perf_evsel *evsel, |
Arnaldo Carvalho de Melo | 743eb86 | 2011-11-28 07:56:39 -0200 | [diff] [blame] | 319 | struct machine *machine) |
Arnaldo Carvalho de Melo | 86a9eee | 2009-12-14 20:09:31 -0200 | [diff] [blame] | 320 | { |
| 321 | struct addr_location al; |
Arnaldo Carvalho de Melo | 86a9eee | 2009-12-14 20:09:31 -0200 | [diff] [blame] | 322 | |
Adrian Hunter | e44baa3 | 2013-08-08 14:32:25 +0300 | [diff] [blame] | 323 | if (perf_event__preprocess_sample(event, machine, &al, sample) < 0) { |
Arnaldo Carvalho de Melo | 86a9eee | 2009-12-14 20:09:31 -0200 | [diff] [blame] | 324 | pr_warning("problem processing %d event, skipping it.\n", |
| 325 | event->header.type); |
| 326 | return -1; |
| 327 | } |
| 328 | |
Jiri Olsa | d88c48f | 2012-10-05 16:44:46 +0200 | [diff] [blame] | 329 | if (al.filtered) |
Arnaldo Carvalho de Melo | c410a33 | 2009-12-15 20:04:41 -0200 | [diff] [blame] | 330 | return 0; |
| 331 | |
Andi Kleen | 475eeab | 2013-09-20 07:40:43 -0700 | [diff] [blame^] | 332 | if (hists__add_entry(&evsel->hists, &al, sample->period, |
| 333 | sample->weight, sample->transaction)) { |
Arnaldo Carvalho de Melo | c82ee82 | 2010-05-14 14:19:35 -0300 | [diff] [blame] | 334 | pr_warning("problem incrementing symbol period, skipping event\n"); |
Arnaldo Carvalho de Melo | 86a9eee | 2009-12-14 20:09:31 -0200 | [diff] [blame] | 335 | return -1; |
| 336 | } |
| 337 | |
Jiri Olsa | 863e451 | 2012-09-06 17:46:55 +0200 | [diff] [blame] | 338 | evsel->hists.stats.total_period += sample->period; |
Arnaldo Carvalho de Melo | 86a9eee | 2009-12-14 20:09:31 -0200 | [diff] [blame] | 339 | return 0; |
| 340 | } |
| 341 | |
Jiri Olsa | 863e451 | 2012-09-06 17:46:55 +0200 | [diff] [blame] | 342 | static struct perf_tool tool = { |
| 343 | .sample = diff__process_sample_event, |
| 344 | .mmap = perf_event__process_mmap, |
| 345 | .comm = perf_event__process_comm, |
Arnaldo Carvalho de Melo | f62d3f0 | 2012-10-06 15:44:59 -0300 | [diff] [blame] | 346 | .exit = perf_event__process_exit, |
| 347 | .fork = perf_event__process_fork, |
Jiri Olsa | 863e451 | 2012-09-06 17:46:55 +0200 | [diff] [blame] | 348 | .lost = perf_event__process_lost, |
| 349 | .ordered_samples = true, |
| 350 | .ordering_requires_timestamps = true, |
Arnaldo Carvalho de Melo | 86a9eee | 2009-12-14 20:09:31 -0200 | [diff] [blame] | 351 | }; |
| 352 | |
Jiri Olsa | 863e451 | 2012-09-06 17:46:55 +0200 | [diff] [blame] | 353 | static struct perf_evsel *evsel_match(struct perf_evsel *evsel, |
| 354 | struct perf_evlist *evlist) |
| 355 | { |
| 356 | struct perf_evsel *e; |
| 357 | |
| 358 | list_for_each_entry(e, &evlist->entries, node) |
| 359 | if (perf_evsel__match2(evsel, e)) |
| 360 | return e; |
| 361 | |
| 362 | return NULL; |
| 363 | } |
| 364 | |
Namhyung Kim | ce74f60 | 2012-12-10 17:29:55 +0900 | [diff] [blame] | 365 | static void perf_evlist__collapse_resort(struct perf_evlist *evlist) |
Jiri Olsa | dd46434 | 2012-10-04 21:49:36 +0900 | [diff] [blame] | 366 | { |
| 367 | struct perf_evsel *evsel; |
| 368 | |
| 369 | list_for_each_entry(evsel, &evlist->entries, node) { |
| 370 | struct hists *hists = &evsel->hists; |
| 371 | |
Namhyung Kim | ce74f60 | 2012-12-10 17:29:55 +0900 | [diff] [blame] | 372 | hists__collapse_resort(hists); |
Jiri Olsa | dd46434 | 2012-10-04 21:49:36 +0900 | [diff] [blame] | 373 | } |
| 374 | } |
| 375 | |
Jiri Olsa | 5f3f8d3 | 2012-11-25 23:10:20 +0100 | [diff] [blame] | 376 | static struct hist_entry* |
| 377 | get_pair_data(struct hist_entry *he, struct data__file *d) |
| 378 | { |
| 379 | if (hist_entry__has_pairs(he)) { |
| 380 | struct hist_entry *pair; |
| 381 | |
| 382 | list_for_each_entry(pair, &he->pairs.head, pairs.node) |
| 383 | if (pair->hists == d->hists) |
| 384 | return pair; |
| 385 | } |
| 386 | |
| 387 | return NULL; |
| 388 | } |
| 389 | |
| 390 | static struct hist_entry* |
| 391 | get_pair_fmt(struct hist_entry *he, struct diff_hpp_fmt *dfmt) |
| 392 | { |
| 393 | void *ptr = dfmt - dfmt->idx; |
| 394 | struct data__file *d = container_of(ptr, struct data__file, fmt); |
| 395 | |
| 396 | return get_pair_data(he, d); |
| 397 | } |
| 398 | |
Jiri Olsa | a06d143 | 2012-10-05 16:44:40 +0200 | [diff] [blame] | 399 | static void hists__baseline_only(struct hists *hists) |
| 400 | { |
Namhyung Kim | ce74f60 | 2012-12-10 17:29:55 +0900 | [diff] [blame] | 401 | struct rb_root *root; |
| 402 | struct rb_node *next; |
Jiri Olsa | a06d143 | 2012-10-05 16:44:40 +0200 | [diff] [blame] | 403 | |
Namhyung Kim | ce74f60 | 2012-12-10 17:29:55 +0900 | [diff] [blame] | 404 | if (sort__need_collapse) |
| 405 | root = &hists->entries_collapsed; |
| 406 | else |
| 407 | root = hists->entries_in; |
| 408 | |
| 409 | next = rb_first(root); |
Jiri Olsa | a06d143 | 2012-10-05 16:44:40 +0200 | [diff] [blame] | 410 | while (next != NULL) { |
Namhyung Kim | ce74f60 | 2012-12-10 17:29:55 +0900 | [diff] [blame] | 411 | struct hist_entry *he = rb_entry(next, struct hist_entry, rb_node_in); |
Jiri Olsa | a06d143 | 2012-10-05 16:44:40 +0200 | [diff] [blame] | 412 | |
Namhyung Kim | ce74f60 | 2012-12-10 17:29:55 +0900 | [diff] [blame] | 413 | next = rb_next(&he->rb_node_in); |
Arnaldo Carvalho de Melo | b821c73 | 2012-10-25 14:42:45 -0200 | [diff] [blame] | 414 | if (!hist_entry__next_pair(he)) { |
Namhyung Kim | ce74f60 | 2012-12-10 17:29:55 +0900 | [diff] [blame] | 415 | rb_erase(&he->rb_node_in, root); |
Jiri Olsa | a06d143 | 2012-10-05 16:44:40 +0200 | [diff] [blame] | 416 | hist_entry__free(he); |
| 417 | } |
| 418 | } |
| 419 | } |
| 420 | |
Jiri Olsa | 96c47f1 | 2012-10-05 16:44:42 +0200 | [diff] [blame] | 421 | static void hists__precompute(struct hists *hists) |
| 422 | { |
Jiri Olsa | 367c53c | 2012-12-13 14:08:59 +0100 | [diff] [blame] | 423 | struct rb_root *root; |
| 424 | struct rb_node *next; |
Jiri Olsa | 96c47f1 | 2012-10-05 16:44:42 +0200 | [diff] [blame] | 425 | |
Jiri Olsa | 367c53c | 2012-12-13 14:08:59 +0100 | [diff] [blame] | 426 | if (sort__need_collapse) |
| 427 | root = &hists->entries_collapsed; |
| 428 | else |
| 429 | root = hists->entries_in; |
| 430 | |
| 431 | next = rb_first(root); |
Jiri Olsa | 96c47f1 | 2012-10-05 16:44:42 +0200 | [diff] [blame] | 432 | while (next != NULL) { |
Jiri Olsa | 5f3f8d3 | 2012-11-25 23:10:20 +0100 | [diff] [blame] | 433 | struct hist_entry *he, *pair; |
Jiri Olsa | 96c47f1 | 2012-10-05 16:44:42 +0200 | [diff] [blame] | 434 | |
Jiri Olsa | 5f3f8d3 | 2012-11-25 23:10:20 +0100 | [diff] [blame] | 435 | he = rb_entry(next, struct hist_entry, rb_node_in); |
Jiri Olsa | 367c53c | 2012-12-13 14:08:59 +0100 | [diff] [blame] | 436 | next = rb_next(&he->rb_node_in); |
Jiri Olsa | 5f3f8d3 | 2012-11-25 23:10:20 +0100 | [diff] [blame] | 437 | |
| 438 | pair = get_pair_data(he, &data__files[sort_compute]); |
Jiri Olsa | 05472da | 2012-11-28 14:52:40 +0100 | [diff] [blame] | 439 | if (!pair) |
| 440 | continue; |
Jiri Olsa | 96c47f1 | 2012-10-05 16:44:42 +0200 | [diff] [blame] | 441 | |
| 442 | switch (compute) { |
| 443 | case COMPUTE_DELTA: |
Jiri Olsa | ef358e6 | 2012-10-21 23:31:51 +0200 | [diff] [blame] | 444 | compute_delta(he, pair); |
Jiri Olsa | 96c47f1 | 2012-10-05 16:44:42 +0200 | [diff] [blame] | 445 | break; |
| 446 | case COMPUTE_RATIO: |
Jiri Olsa | ef358e6 | 2012-10-21 23:31:51 +0200 | [diff] [blame] | 447 | compute_ratio(he, pair); |
Jiri Olsa | 96c47f1 | 2012-10-05 16:44:42 +0200 | [diff] [blame] | 448 | break; |
Jiri Olsa | 81d5f95 | 2012-10-05 16:44:43 +0200 | [diff] [blame] | 449 | case COMPUTE_WEIGHTED_DIFF: |
Jiri Olsa | ef358e6 | 2012-10-21 23:31:51 +0200 | [diff] [blame] | 450 | compute_wdiff(he, pair); |
Jiri Olsa | 81d5f95 | 2012-10-05 16:44:43 +0200 | [diff] [blame] | 451 | break; |
Jiri Olsa | 96c47f1 | 2012-10-05 16:44:42 +0200 | [diff] [blame] | 452 | default: |
| 453 | BUG_ON(1); |
| 454 | } |
| 455 | } |
| 456 | } |
| 457 | |
| 458 | static int64_t cmp_doubles(double l, double r) |
| 459 | { |
| 460 | if (l > r) |
| 461 | return -1; |
| 462 | else if (l < r) |
| 463 | return 1; |
| 464 | else |
| 465 | return 0; |
| 466 | } |
| 467 | |
| 468 | static int64_t |
Jiri Olsa | 5f3f8d3 | 2012-11-25 23:10:20 +0100 | [diff] [blame] | 469 | __hist_entry__cmp_compute(struct hist_entry *left, struct hist_entry *right, |
Jiri Olsa | 96c47f1 | 2012-10-05 16:44:42 +0200 | [diff] [blame] | 470 | int c) |
| 471 | { |
| 472 | switch (c) { |
| 473 | case COMPUTE_DELTA: |
| 474 | { |
| 475 | double l = left->diff.period_ratio_delta; |
| 476 | double r = right->diff.period_ratio_delta; |
| 477 | |
| 478 | return cmp_doubles(l, r); |
| 479 | } |
| 480 | case COMPUTE_RATIO: |
| 481 | { |
| 482 | double l = left->diff.period_ratio; |
| 483 | double r = right->diff.period_ratio; |
| 484 | |
| 485 | return cmp_doubles(l, r); |
| 486 | } |
Jiri Olsa | 81d5f95 | 2012-10-05 16:44:43 +0200 | [diff] [blame] | 487 | case COMPUTE_WEIGHTED_DIFF: |
| 488 | { |
| 489 | s64 l = left->diff.wdiff; |
| 490 | s64 r = right->diff.wdiff; |
| 491 | |
| 492 | return r - l; |
| 493 | } |
Jiri Olsa | 96c47f1 | 2012-10-05 16:44:42 +0200 | [diff] [blame] | 494 | default: |
| 495 | BUG_ON(1); |
| 496 | } |
| 497 | |
| 498 | return 0; |
| 499 | } |
| 500 | |
Jiri Olsa | 5f3f8d3 | 2012-11-25 23:10:20 +0100 | [diff] [blame] | 501 | static int64_t |
| 502 | hist_entry__cmp_compute(struct hist_entry *left, struct hist_entry *right, |
| 503 | int c) |
| 504 | { |
| 505 | bool pairs_left = hist_entry__has_pairs(left); |
| 506 | bool pairs_right = hist_entry__has_pairs(right); |
| 507 | struct hist_entry *p_right, *p_left; |
| 508 | |
| 509 | if (!pairs_left && !pairs_right) |
| 510 | return 0; |
| 511 | |
| 512 | if (!pairs_left || !pairs_right) |
| 513 | return pairs_left ? -1 : 1; |
| 514 | |
| 515 | p_left = get_pair_data(left, &data__files[sort_compute]); |
| 516 | p_right = get_pair_data(right, &data__files[sort_compute]); |
| 517 | |
| 518 | if (!p_left && !p_right) |
| 519 | return 0; |
| 520 | |
| 521 | if (!p_left || !p_right) |
| 522 | return p_left ? -1 : 1; |
| 523 | |
| 524 | /* |
| 525 | * We have 2 entries of same kind, let's |
| 526 | * make the data comparison. |
| 527 | */ |
| 528 | return __hist_entry__cmp_compute(p_left, p_right, c); |
| 529 | } |
| 530 | |
Jiri Olsa | 96c47f1 | 2012-10-05 16:44:42 +0200 | [diff] [blame] | 531 | static void insert_hist_entry_by_compute(struct rb_root *root, |
| 532 | struct hist_entry *he, |
| 533 | int c) |
| 534 | { |
| 535 | struct rb_node **p = &root->rb_node; |
| 536 | struct rb_node *parent = NULL; |
| 537 | struct hist_entry *iter; |
| 538 | |
| 539 | while (*p != NULL) { |
| 540 | parent = *p; |
| 541 | iter = rb_entry(parent, struct hist_entry, rb_node); |
| 542 | if (hist_entry__cmp_compute(he, iter, c) < 0) |
| 543 | p = &(*p)->rb_left; |
| 544 | else |
| 545 | p = &(*p)->rb_right; |
| 546 | } |
| 547 | |
| 548 | rb_link_node(&he->rb_node, parent, p); |
| 549 | rb_insert_color(&he->rb_node, root); |
| 550 | } |
| 551 | |
| 552 | static void hists__compute_resort(struct hists *hists) |
| 553 | { |
Namhyung Kim | 66f97ed | 2012-12-10 17:29:56 +0900 | [diff] [blame] | 554 | struct rb_root *root; |
| 555 | struct rb_node *next; |
| 556 | |
| 557 | if (sort__need_collapse) |
| 558 | root = &hists->entries_collapsed; |
| 559 | else |
| 560 | root = hists->entries_in; |
| 561 | |
| 562 | hists->entries = RB_ROOT; |
| 563 | next = rb_first(root); |
| 564 | |
| 565 | hists->nr_entries = 0; |
| 566 | hists->stats.total_period = 0; |
| 567 | hists__reset_col_len(hists); |
Jiri Olsa | 96c47f1 | 2012-10-05 16:44:42 +0200 | [diff] [blame] | 568 | |
| 569 | while (next != NULL) { |
Namhyung Kim | 66f97ed | 2012-12-10 17:29:56 +0900 | [diff] [blame] | 570 | struct hist_entry *he; |
Jiri Olsa | 96c47f1 | 2012-10-05 16:44:42 +0200 | [diff] [blame] | 571 | |
Namhyung Kim | 66f97ed | 2012-12-10 17:29:56 +0900 | [diff] [blame] | 572 | he = rb_entry(next, struct hist_entry, rb_node_in); |
| 573 | next = rb_next(&he->rb_node_in); |
Jiri Olsa | 96c47f1 | 2012-10-05 16:44:42 +0200 | [diff] [blame] | 574 | |
Namhyung Kim | 66f97ed | 2012-12-10 17:29:56 +0900 | [diff] [blame] | 575 | insert_hist_entry_by_compute(&hists->entries, he, compute); |
| 576 | hists__inc_nr_entries(hists, he); |
Jiri Olsa | 96c47f1 | 2012-10-05 16:44:42 +0200 | [diff] [blame] | 577 | } |
Jiri Olsa | 96c47f1 | 2012-10-05 16:44:42 +0200 | [diff] [blame] | 578 | } |
| 579 | |
Jiri Olsa | 22aeb7f | 2012-12-01 22:00:00 +0100 | [diff] [blame] | 580 | static void hists__process(struct hists *hists) |
Jiri Olsa | a06d143 | 2012-10-05 16:44:40 +0200 | [diff] [blame] | 581 | { |
Jiri Olsa | a06d143 | 2012-10-05 16:44:40 +0200 | [diff] [blame] | 582 | if (show_baseline_only) |
Jiri Olsa | 22aeb7f | 2012-12-01 22:00:00 +0100 | [diff] [blame] | 583 | hists__baseline_only(hists); |
Jiri Olsa | a06d143 | 2012-10-05 16:44:40 +0200 | [diff] [blame] | 584 | |
Jiri Olsa | 96c47f1 | 2012-10-05 16:44:42 +0200 | [diff] [blame] | 585 | if (sort_compute) { |
Jiri Olsa | 22aeb7f | 2012-12-01 22:00:00 +0100 | [diff] [blame] | 586 | hists__precompute(hists); |
| 587 | hists__compute_resort(hists); |
Namhyung Kim | 66f97ed | 2012-12-10 17:29:56 +0900 | [diff] [blame] | 588 | } else { |
Jiri Olsa | 22aeb7f | 2012-12-01 22:00:00 +0100 | [diff] [blame] | 589 | hists__output_resort(hists); |
Jiri Olsa | 96c47f1 | 2012-10-05 16:44:42 +0200 | [diff] [blame] | 590 | } |
| 591 | |
Jiri Olsa | 22aeb7f | 2012-12-01 22:00:00 +0100 | [diff] [blame] | 592 | hists__fprintf(hists, true, 0, 0, 0, stdout); |
Jiri Olsa | a06d143 | 2012-10-05 16:44:40 +0200 | [diff] [blame] | 593 | } |
| 594 | |
Jiri Olsa | 1d81c7f | 2012-12-01 21:56:03 +0100 | [diff] [blame] | 595 | static void data__fprintf(void) |
| 596 | { |
| 597 | struct data__file *d; |
| 598 | int i; |
| 599 | |
| 600 | fprintf(stdout, "# Data files:\n"); |
| 601 | |
| 602 | data__for_each_file(i, d) |
| 603 | fprintf(stdout, "# [%d] %s %s\n", |
| 604 | d->idx, d->file, |
| 605 | !d->idx ? "(Baseline)" : ""); |
| 606 | |
| 607 | fprintf(stdout, "#\n"); |
| 608 | } |
| 609 | |
Jiri Olsa | ec30842 | 2013-03-25 00:02:01 +0100 | [diff] [blame] | 610 | static void data_process(void) |
Arnaldo Carvalho de Melo | 86a9eee | 2009-12-14 20:09:31 -0200 | [diff] [blame] | 611 | { |
Jiri Olsa | 22aeb7f | 2012-12-01 22:00:00 +0100 | [diff] [blame] | 612 | struct perf_evlist *evlist_base = data__files[0].session->evlist; |
| 613 | struct perf_evsel *evsel_base; |
Jiri Olsa | 863e451 | 2012-09-06 17:46:55 +0200 | [diff] [blame] | 614 | bool first = true; |
Arnaldo Carvalho de Melo | 86a9eee | 2009-12-14 20:09:31 -0200 | [diff] [blame] | 615 | |
Jiri Olsa | 22aeb7f | 2012-12-01 22:00:00 +0100 | [diff] [blame] | 616 | list_for_each_entry(evsel_base, &evlist_base->entries, node) { |
| 617 | struct data__file *d; |
| 618 | int i; |
Arnaldo Carvalho de Melo | 86a9eee | 2009-12-14 20:09:31 -0200 | [diff] [blame] | 619 | |
Jiri Olsa | 22aeb7f | 2012-12-01 22:00:00 +0100 | [diff] [blame] | 620 | data__for_each_file_new(i, d) { |
| 621 | struct perf_evlist *evlist = d->session->evlist; |
| 622 | struct perf_evsel *evsel; |
| 623 | |
| 624 | evsel = evsel_match(evsel_base, evlist); |
| 625 | if (!evsel) |
| 626 | continue; |
| 627 | |
| 628 | d->hists = &evsel->hists; |
| 629 | |
| 630 | hists__match(&evsel_base->hists, &evsel->hists); |
| 631 | |
| 632 | if (!show_baseline_only) |
| 633 | hists__link(&evsel_base->hists, |
| 634 | &evsel->hists); |
| 635 | } |
Jiri Olsa | 863e451 | 2012-09-06 17:46:55 +0200 | [diff] [blame] | 636 | |
| 637 | fprintf(stdout, "%s# Event '%s'\n#\n", first ? "" : "\n", |
Jiri Olsa | 22aeb7f | 2012-12-01 22:00:00 +0100 | [diff] [blame] | 638 | perf_evsel__name(evsel_base)); |
Jiri Olsa | 863e451 | 2012-09-06 17:46:55 +0200 | [diff] [blame] | 639 | |
| 640 | first = false; |
| 641 | |
Jiri Olsa | 22aeb7f | 2012-12-01 22:00:00 +0100 | [diff] [blame] | 642 | if (verbose || data__files_cnt > 2) |
Jiri Olsa | 1d81c7f | 2012-12-01 21:56:03 +0100 | [diff] [blame] | 643 | data__fprintf(); |
| 644 | |
Jiri Olsa | 22aeb7f | 2012-12-01 22:00:00 +0100 | [diff] [blame] | 645 | hists__process(&evsel_base->hists); |
Jiri Olsa | ec30842 | 2013-03-25 00:02:01 +0100 | [diff] [blame] | 646 | } |
| 647 | } |
| 648 | |
Jiri Olsa | c818b49 | 2012-12-01 21:57:04 +0100 | [diff] [blame] | 649 | static void data__free(struct data__file *d) |
| 650 | { |
| 651 | int col; |
| 652 | |
| 653 | for (col = 0; col < PERF_HPP_DIFF__MAX_INDEX; col++) { |
| 654 | struct diff_hpp_fmt *fmt = &d->fmt[col]; |
| 655 | |
| 656 | free(fmt->header); |
| 657 | } |
| 658 | } |
| 659 | |
Jiri Olsa | ec30842 | 2013-03-25 00:02:01 +0100 | [diff] [blame] | 660 | static int __cmd_diff(void) |
| 661 | { |
| 662 | struct data__file *d; |
| 663 | int ret = -EINVAL, i; |
| 664 | |
| 665 | data__for_each_file(i, d) { |
| 666 | d->session = perf_session__new(d->file, O_RDONLY, force, |
| 667 | false, &tool); |
| 668 | if (!d->session) { |
| 669 | pr_err("Failed to open %s\n", d->file); |
| 670 | ret = -ENOMEM; |
| 671 | goto out_delete; |
| 672 | } |
| 673 | |
| 674 | ret = perf_session__process_events(d->session, &tool); |
| 675 | if (ret) { |
| 676 | pr_err("Failed to process %s\n", d->file); |
| 677 | goto out_delete; |
| 678 | } |
| 679 | |
| 680 | perf_evlist__collapse_resort(d->session->evlist); |
Jiri Olsa | 863e451 | 2012-09-06 17:46:55 +0200 | [diff] [blame] | 681 | } |
| 682 | |
Jiri Olsa | ec30842 | 2013-03-25 00:02:01 +0100 | [diff] [blame] | 683 | data_process(); |
| 684 | |
| 685 | out_delete: |
| 686 | data__for_each_file(i, d) { |
| 687 | if (d->session) |
| 688 | perf_session__delete(d->session); |
Jiri Olsa | c818b49 | 2012-12-01 21:57:04 +0100 | [diff] [blame] | 689 | |
| 690 | data__free(d); |
Jiri Olsa | ec30842 | 2013-03-25 00:02:01 +0100 | [diff] [blame] | 691 | } |
| 692 | |
| 693 | free(data__files); |
Arnaldo Carvalho de Melo | 86a9eee | 2009-12-14 20:09:31 -0200 | [diff] [blame] | 694 | return ret; |
| 695 | } |
| 696 | |
Arnaldo Carvalho de Melo | 0422a4f | 2009-12-18 16:35:58 -0200 | [diff] [blame] | 697 | static const char * const diff_usage[] = { |
Arnaldo Carvalho de Melo | 86a9eee | 2009-12-14 20:09:31 -0200 | [diff] [blame] | 698 | "perf diff [<options>] [old_file] [new_file]", |
Arnaldo Carvalho de Melo | 0422a4f | 2009-12-18 16:35:58 -0200 | [diff] [blame] | 699 | NULL, |
Arnaldo Carvalho de Melo | 86a9eee | 2009-12-14 20:09:31 -0200 | [diff] [blame] | 700 | }; |
| 701 | |
| 702 | static const struct option options[] = { |
Ian Munsie | c055564 | 2010-04-13 18:37:33 +1000 | [diff] [blame] | 703 | OPT_INCR('v', "verbose", &verbose, |
Arnaldo Carvalho de Melo | 86a9eee | 2009-12-14 20:09:31 -0200 | [diff] [blame] | 704 | "be more verbose (show symbol address, etc)"), |
Jiri Olsa | a06d143 | 2012-10-05 16:44:40 +0200 | [diff] [blame] | 705 | OPT_BOOLEAN('b', "baseline-only", &show_baseline_only, |
| 706 | "Show only items with match in baseline"), |
Jiri Olsa | 81d5f95 | 2012-10-05 16:44:43 +0200 | [diff] [blame] | 707 | OPT_CALLBACK('c', "compute", &compute, |
| 708 | "delta,ratio,wdiff:w1,w2 (default delta)", |
Jiri Olsa | 7aaf6b3 | 2012-10-05 16:44:41 +0200 | [diff] [blame] | 709 | "Entries differential computation selection", |
| 710 | setup_compute), |
Jiri Olsa | 61949b2 | 2012-10-05 16:44:44 +0200 | [diff] [blame] | 711 | OPT_BOOLEAN('p', "period", &show_period, |
| 712 | "Show period values."), |
Jiri Olsa | ed279da | 2012-10-05 16:44:45 +0200 | [diff] [blame] | 713 | OPT_BOOLEAN('F', "formula", &show_formula, |
| 714 | "Show formula."), |
Arnaldo Carvalho de Melo | 86a9eee | 2009-12-14 20:09:31 -0200 | [diff] [blame] | 715 | OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace, |
| 716 | "dump raw trace in ASCII"), |
| 717 | OPT_BOOLEAN('f', "force", &force, "don't complain, do it"), |
| 718 | OPT_BOOLEAN('m', "modules", &symbol_conf.use_modules, |
| 719 | "load module symbols - WARNING: use only with -k and LIVE kernel"), |
Arnaldo Carvalho de Melo | c410a33 | 2009-12-15 20:04:41 -0200 | [diff] [blame] | 720 | OPT_STRING('d', "dsos", &symbol_conf.dso_list_str, "dso[,dso...]", |
| 721 | "only consider symbols in these dsos"), |
| 722 | OPT_STRING('C', "comms", &symbol_conf.comm_list_str, "comm[,comm...]", |
| 723 | "only consider symbols in these comms"), |
| 724 | OPT_STRING('S', "symbols", &symbol_conf.sym_list_str, "symbol[,symbol...]", |
| 725 | "only consider these symbols"), |
Arnaldo Carvalho de Melo | c351c28 | 2009-12-16 13:49:27 -0200 | [diff] [blame] | 726 | OPT_STRING('s', "sort", &sort_order, "key[,key2...]", |
| 727 | "sort by key(s): pid, comm, dso, symbol, parent"), |
| 728 | OPT_STRING('t', "field-separator", &symbol_conf.field_sep, "separator", |
| 729 | "separator for columns, no spaces will be added between " |
| 730 | "columns '.' is reserved."), |
David Ahern | ec5761e | 2010-12-09 13:27:07 -0700 | [diff] [blame] | 731 | OPT_STRING(0, "symfs", &symbol_conf.symfs, "directory", |
| 732 | "Look for files with symbols relative to this directory"), |
Jiri Olsa | 5f3f8d3 | 2012-11-25 23:10:20 +0100 | [diff] [blame] | 733 | OPT_UINTEGER('o', "order", &sort_compute, "Specify compute sorting."), |
Arnaldo Carvalho de Melo | 86a9eee | 2009-12-14 20:09:31 -0200 | [diff] [blame] | 734 | OPT_END() |
| 735 | }; |
| 736 | |
Jiri Olsa | 345dc0b | 2013-02-03 20:08:34 +0100 | [diff] [blame] | 737 | static double baseline_percent(struct hist_entry *he) |
Jiri Olsa | 1d77822 | 2012-10-04 21:49:39 +0900 | [diff] [blame] | 738 | { |
Jiri Olsa | 345dc0b | 2013-02-03 20:08:34 +0100 | [diff] [blame] | 739 | struct hists *hists = he->hists; |
| 740 | return 100.0 * he->stat.period / hists->stats.total_period; |
| 741 | } |
Jiri Olsa | 7aaf6b3 | 2012-10-05 16:44:41 +0200 | [diff] [blame] | 742 | |
Jiri Olsa | 345dc0b | 2013-02-03 20:08:34 +0100 | [diff] [blame] | 743 | static int hpp__color_baseline(struct perf_hpp_fmt *fmt, |
| 744 | struct perf_hpp *hpp, struct hist_entry *he) |
| 745 | { |
| 746 | struct diff_hpp_fmt *dfmt = |
| 747 | container_of(fmt, struct diff_hpp_fmt, fmt); |
| 748 | double percent = baseline_percent(he); |
| 749 | char pfmt[20] = " "; |
| 750 | |
| 751 | if (!he->dummy) { |
| 752 | scnprintf(pfmt, 20, "%%%d.2f%%%%", dfmt->header_width - 1); |
| 753 | return percent_color_snprintf(hpp->buf, hpp->size, |
| 754 | pfmt, percent); |
| 755 | } else |
| 756 | return scnprintf(hpp->buf, hpp->size, "%*s", |
| 757 | dfmt->header_width, pfmt); |
| 758 | } |
| 759 | |
| 760 | static int hpp__entry_baseline(struct hist_entry *he, char *buf, size_t size) |
| 761 | { |
| 762 | double percent = baseline_percent(he); |
| 763 | const char *fmt = symbol_conf.field_sep ? "%.2f" : "%6.2f%%"; |
| 764 | int ret = 0; |
| 765 | |
| 766 | if (!he->dummy) |
| 767 | ret = scnprintf(buf, size, fmt, percent); |
| 768 | |
| 769 | return ret; |
| 770 | } |
| 771 | |
| 772 | static void |
| 773 | hpp__entry_unpair(struct hist_entry *he, int idx, char *buf, size_t size) |
| 774 | { |
| 775 | switch (idx) { |
| 776 | case PERF_HPP_DIFF__PERIOD_BASELINE: |
| 777 | scnprintf(buf, size, "%" PRIu64, he->stat.period); |
Jiri Olsa | 7aaf6b3 | 2012-10-05 16:44:41 +0200 | [diff] [blame] | 778 | break; |
Jiri Olsa | 345dc0b | 2013-02-03 20:08:34 +0100 | [diff] [blame] | 779 | |
| 780 | default: |
Jiri Olsa | 7aaf6b3 | 2012-10-05 16:44:41 +0200 | [diff] [blame] | 781 | break; |
Jiri Olsa | 345dc0b | 2013-02-03 20:08:34 +0100 | [diff] [blame] | 782 | } |
| 783 | } |
| 784 | |
| 785 | static void |
| 786 | hpp__entry_pair(struct hist_entry *he, struct hist_entry *pair, |
| 787 | int idx, char *buf, size_t size) |
| 788 | { |
| 789 | double diff; |
| 790 | double ratio; |
| 791 | s64 wdiff; |
| 792 | |
| 793 | switch (idx) { |
| 794 | case PERF_HPP_DIFF__DELTA: |
| 795 | if (pair->diff.computed) |
| 796 | diff = pair->diff.period_ratio_delta; |
| 797 | else |
Jiri Olsa | ef358e6 | 2012-10-21 23:31:51 +0200 | [diff] [blame] | 798 | diff = compute_delta(he, pair); |
Jiri Olsa | 345dc0b | 2013-02-03 20:08:34 +0100 | [diff] [blame] | 799 | |
| 800 | if (fabs(diff) >= 0.01) |
| 801 | scnprintf(buf, size, "%+4.2F%%", diff); |
Jiri Olsa | 81d5f95 | 2012-10-05 16:44:43 +0200 | [diff] [blame] | 802 | break; |
Jiri Olsa | 345dc0b | 2013-02-03 20:08:34 +0100 | [diff] [blame] | 803 | |
| 804 | case PERF_HPP_DIFF__RATIO: |
| 805 | /* No point for ratio number if we are dummy.. */ |
| 806 | if (he->dummy) |
| 807 | break; |
| 808 | |
| 809 | if (pair->diff.computed) |
| 810 | ratio = pair->diff.period_ratio; |
| 811 | else |
Jiri Olsa | ef358e6 | 2012-10-21 23:31:51 +0200 | [diff] [blame] | 812 | ratio = compute_ratio(he, pair); |
Jiri Olsa | 345dc0b | 2013-02-03 20:08:34 +0100 | [diff] [blame] | 813 | |
| 814 | if (ratio > 0.0) |
| 815 | scnprintf(buf, size, "%14.6F", ratio); |
| 816 | break; |
| 817 | |
| 818 | case PERF_HPP_DIFF__WEIGHTED_DIFF: |
| 819 | /* No point for wdiff number if we are dummy.. */ |
| 820 | if (he->dummy) |
| 821 | break; |
| 822 | |
| 823 | if (pair->diff.computed) |
| 824 | wdiff = pair->diff.wdiff; |
| 825 | else |
Jiri Olsa | ef358e6 | 2012-10-21 23:31:51 +0200 | [diff] [blame] | 826 | wdiff = compute_wdiff(he, pair); |
Jiri Olsa | 345dc0b | 2013-02-03 20:08:34 +0100 | [diff] [blame] | 827 | |
| 828 | if (wdiff != 0) |
| 829 | scnprintf(buf, size, "%14ld", wdiff); |
| 830 | break; |
| 831 | |
| 832 | case PERF_HPP_DIFF__FORMULA: |
Jiri Olsa | ef358e6 | 2012-10-21 23:31:51 +0200 | [diff] [blame] | 833 | formula_fprintf(he, pair, buf, size); |
Jiri Olsa | 345dc0b | 2013-02-03 20:08:34 +0100 | [diff] [blame] | 834 | break; |
| 835 | |
| 836 | case PERF_HPP_DIFF__PERIOD: |
| 837 | scnprintf(buf, size, "%" PRIu64, pair->stat.period); |
| 838 | break; |
| 839 | |
Jiri Olsa | 7aaf6b3 | 2012-10-05 16:44:41 +0200 | [diff] [blame] | 840 | default: |
| 841 | BUG_ON(1); |
| 842 | }; |
Jiri Olsa | 345dc0b | 2013-02-03 20:08:34 +0100 | [diff] [blame] | 843 | } |
| 844 | |
Jiri Olsa | 22aeb7f | 2012-12-01 22:00:00 +0100 | [diff] [blame] | 845 | static void |
| 846 | __hpp__entry_global(struct hist_entry *he, struct diff_hpp_fmt *dfmt, |
| 847 | char *buf, size_t size) |
| 848 | { |
Jiri Olsa | 5f3f8d3 | 2012-11-25 23:10:20 +0100 | [diff] [blame] | 849 | struct hist_entry *pair = get_pair_fmt(he, dfmt); |
Jiri Olsa | 22aeb7f | 2012-12-01 22:00:00 +0100 | [diff] [blame] | 850 | int idx = dfmt->idx; |
Jiri Olsa | 345dc0b | 2013-02-03 20:08:34 +0100 | [diff] [blame] | 851 | |
| 852 | /* baseline is special */ |
| 853 | if (idx == PERF_HPP_DIFF__BASELINE) |
| 854 | hpp__entry_baseline(he, buf, size); |
| 855 | else { |
| 856 | if (pair) |
| 857 | hpp__entry_pair(he, pair, idx, buf, size); |
| 858 | else |
| 859 | hpp__entry_unpair(he, idx, buf, size); |
| 860 | } |
| 861 | } |
| 862 | |
| 863 | static int hpp__entry_global(struct perf_hpp_fmt *_fmt, struct perf_hpp *hpp, |
| 864 | struct hist_entry *he) |
| 865 | { |
| 866 | struct diff_hpp_fmt *dfmt = |
| 867 | container_of(_fmt, struct diff_hpp_fmt, fmt); |
| 868 | char buf[MAX_COL_WIDTH] = " "; |
| 869 | |
Jiri Olsa | 22aeb7f | 2012-12-01 22:00:00 +0100 | [diff] [blame] | 870 | __hpp__entry_global(he, dfmt, buf, MAX_COL_WIDTH); |
Jiri Olsa | 345dc0b | 2013-02-03 20:08:34 +0100 | [diff] [blame] | 871 | |
| 872 | if (symbol_conf.field_sep) |
| 873 | return scnprintf(hpp->buf, hpp->size, "%s", buf); |
| 874 | else |
| 875 | return scnprintf(hpp->buf, hpp->size, "%*s", |
| 876 | dfmt->header_width, buf); |
| 877 | } |
| 878 | |
| 879 | static int hpp__header(struct perf_hpp_fmt *fmt, |
| 880 | struct perf_hpp *hpp) |
| 881 | { |
| 882 | struct diff_hpp_fmt *dfmt = |
| 883 | container_of(fmt, struct diff_hpp_fmt, fmt); |
| 884 | |
| 885 | BUG_ON(!dfmt->header); |
| 886 | return scnprintf(hpp->buf, hpp->size, dfmt->header); |
| 887 | } |
| 888 | |
| 889 | static int hpp__width(struct perf_hpp_fmt *fmt, |
| 890 | struct perf_hpp *hpp __maybe_unused) |
| 891 | { |
| 892 | struct diff_hpp_fmt *dfmt = |
| 893 | container_of(fmt, struct diff_hpp_fmt, fmt); |
| 894 | |
| 895 | BUG_ON(dfmt->header_width <= 0); |
| 896 | return dfmt->header_width; |
| 897 | } |
| 898 | |
Jiri Olsa | 22aeb7f | 2012-12-01 22:00:00 +0100 | [diff] [blame] | 899 | static void init_header(struct data__file *d, struct diff_hpp_fmt *dfmt) |
Jiri Olsa | 345dc0b | 2013-02-03 20:08:34 +0100 | [diff] [blame] | 900 | { |
| 901 | #define MAX_HEADER_NAME 100 |
| 902 | char buf_indent[MAX_HEADER_NAME]; |
| 903 | char buf[MAX_HEADER_NAME]; |
| 904 | const char *header = NULL; |
| 905 | int width = 0; |
| 906 | |
| 907 | BUG_ON(dfmt->idx >= PERF_HPP_DIFF__MAX_INDEX); |
| 908 | header = columns[dfmt->idx].name; |
| 909 | width = columns[dfmt->idx].width; |
| 910 | |
| 911 | /* Only our defined HPP fmts should appear here. */ |
| 912 | BUG_ON(!header); |
| 913 | |
Jiri Olsa | 22aeb7f | 2012-12-01 22:00:00 +0100 | [diff] [blame] | 914 | if (data__files_cnt > 2) |
| 915 | scnprintf(buf, MAX_HEADER_NAME, "%s/%d", header, d->idx); |
| 916 | |
Jiri Olsa | 345dc0b | 2013-02-03 20:08:34 +0100 | [diff] [blame] | 917 | #define NAME (data__files_cnt > 2 ? buf : header) |
| 918 | dfmt->header_width = width; |
| 919 | width = (int) strlen(NAME); |
| 920 | if (dfmt->header_width < width) |
| 921 | dfmt->header_width = width; |
| 922 | |
| 923 | scnprintf(buf_indent, MAX_HEADER_NAME, "%*s", |
| 924 | dfmt->header_width, NAME); |
| 925 | |
| 926 | dfmt->header = strdup(buf_indent); |
| 927 | #undef MAX_HEADER_NAME |
| 928 | #undef NAME |
| 929 | } |
| 930 | |
Jiri Olsa | c818b49 | 2012-12-01 21:57:04 +0100 | [diff] [blame] | 931 | static void data__hpp_register(struct data__file *d, int idx) |
Jiri Olsa | 345dc0b | 2013-02-03 20:08:34 +0100 | [diff] [blame] | 932 | { |
Jiri Olsa | c818b49 | 2012-12-01 21:57:04 +0100 | [diff] [blame] | 933 | struct diff_hpp_fmt *dfmt = &d->fmt[idx]; |
| 934 | struct perf_hpp_fmt *fmt = &dfmt->fmt; |
Jiri Olsa | 345dc0b | 2013-02-03 20:08:34 +0100 | [diff] [blame] | 935 | |
Jiri Olsa | c818b49 | 2012-12-01 21:57:04 +0100 | [diff] [blame] | 936 | dfmt->idx = idx; |
| 937 | |
| 938 | fmt->header = hpp__header; |
| 939 | fmt->width = hpp__width; |
| 940 | fmt->entry = hpp__entry_global; |
| 941 | |
| 942 | /* TODO more colors */ |
| 943 | if (idx == PERF_HPP_DIFF__BASELINE) |
| 944 | fmt->color = hpp__color_baseline; |
| 945 | |
Jiri Olsa | 22aeb7f | 2012-12-01 22:00:00 +0100 | [diff] [blame] | 946 | init_header(d, dfmt); |
Jiri Olsa | c818b49 | 2012-12-01 21:57:04 +0100 | [diff] [blame] | 947 | perf_hpp__column_register(fmt); |
Jiri Olsa | 345dc0b | 2013-02-03 20:08:34 +0100 | [diff] [blame] | 948 | } |
| 949 | |
| 950 | static void ui_init(void) |
| 951 | { |
Jiri Olsa | c818b49 | 2012-12-01 21:57:04 +0100 | [diff] [blame] | 952 | struct data__file *d; |
| 953 | int i; |
Jiri Olsa | 1d77822 | 2012-10-04 21:49:39 +0900 | [diff] [blame] | 954 | |
Jiri Olsa | c818b49 | 2012-12-01 21:57:04 +0100 | [diff] [blame] | 955 | data__for_each_file(i, d) { |
Jiri Olsa | ed279da | 2012-10-05 16:44:45 +0200 | [diff] [blame] | 956 | |
Jiri Olsa | c818b49 | 2012-12-01 21:57:04 +0100 | [diff] [blame] | 957 | /* |
| 958 | * Baseline or compute realted columns: |
| 959 | * |
| 960 | * PERF_HPP_DIFF__BASELINE |
| 961 | * PERF_HPP_DIFF__DELTA |
| 962 | * PERF_HPP_DIFF__RATIO |
| 963 | * PERF_HPP_DIFF__WEIGHTED_DIFF |
| 964 | */ |
| 965 | data__hpp_register(d, i ? compute_2_hpp[compute] : |
| 966 | PERF_HPP_DIFF__BASELINE); |
| 967 | |
| 968 | /* |
| 969 | * And the rest: |
| 970 | * |
| 971 | * PERF_HPP_DIFF__FORMULA |
| 972 | * PERF_HPP_DIFF__PERIOD |
| 973 | * PERF_HPP_DIFF__PERIOD_BASELINE |
| 974 | */ |
| 975 | if (show_formula && i) |
| 976 | data__hpp_register(d, PERF_HPP_DIFF__FORMULA); |
| 977 | |
| 978 | if (show_period) |
| 979 | data__hpp_register(d, i ? PERF_HPP_DIFF__PERIOD : |
| 980 | PERF_HPP_DIFF__PERIOD_BASELINE); |
Jiri Olsa | 61949b2 | 2012-10-05 16:44:44 +0200 | [diff] [blame] | 981 | } |
Jiri Olsa | 1d77822 | 2012-10-04 21:49:39 +0900 | [diff] [blame] | 982 | } |
| 983 | |
Jiri Olsa | ec30842 | 2013-03-25 00:02:01 +0100 | [diff] [blame] | 984 | static int data_init(int argc, const char **argv) |
Arnaldo Carvalho de Melo | 86a9eee | 2009-12-14 20:09:31 -0200 | [diff] [blame] | 985 | { |
Jiri Olsa | ec30842 | 2013-03-25 00:02:01 +0100 | [diff] [blame] | 986 | struct data__file *d; |
| 987 | static const char *defaults[] = { |
| 988 | "perf.data.old", |
| 989 | "perf.data", |
| 990 | }; |
Jiri Olsa | 22aeb7f | 2012-12-01 22:00:00 +0100 | [diff] [blame] | 991 | bool use_default = true; |
Jiri Olsa | ec30842 | 2013-03-25 00:02:01 +0100 | [diff] [blame] | 992 | int i; |
| 993 | |
| 994 | data__files_cnt = 2; |
| 995 | |
Arnaldo Carvalho de Melo | 86a9eee | 2009-12-14 20:09:31 -0200 | [diff] [blame] | 996 | if (argc) { |
Jiri Olsa | 22aeb7f | 2012-12-01 22:00:00 +0100 | [diff] [blame] | 997 | if (argc == 1) |
Jiri Olsa | ec30842 | 2013-03-25 00:02:01 +0100 | [diff] [blame] | 998 | defaults[1] = argv[0]; |
Jiri Olsa | 22aeb7f | 2012-12-01 22:00:00 +0100 | [diff] [blame] | 999 | else { |
| 1000 | data__files_cnt = argc; |
| 1001 | use_default = false; |
| 1002 | } |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 1003 | } else if (symbol_conf.default_guest_vmlinux_name || |
| 1004 | symbol_conf.default_guest_kallsyms) { |
Jiri Olsa | ec30842 | 2013-03-25 00:02:01 +0100 | [diff] [blame] | 1005 | defaults[0] = "perf.data.host"; |
| 1006 | defaults[1] = "perf.data.guest"; |
Arnaldo Carvalho de Melo | 86a9eee | 2009-12-14 20:09:31 -0200 | [diff] [blame] | 1007 | } |
| 1008 | |
Jiri Olsa | 5f3f8d3 | 2012-11-25 23:10:20 +0100 | [diff] [blame] | 1009 | if (sort_compute >= (unsigned int) data__files_cnt) { |
| 1010 | pr_err("Order option out of limit.\n"); |
| 1011 | return -EINVAL; |
| 1012 | } |
| 1013 | |
Jiri Olsa | ec30842 | 2013-03-25 00:02:01 +0100 | [diff] [blame] | 1014 | data__files = zalloc(sizeof(*data__files) * data__files_cnt); |
| 1015 | if (!data__files) |
| 1016 | return -ENOMEM; |
| 1017 | |
| 1018 | data__for_each_file(i, d) { |
Jiri Olsa | 22aeb7f | 2012-12-01 22:00:00 +0100 | [diff] [blame] | 1019 | d->file = use_default ? defaults[i] : argv[i]; |
Jiri Olsa | ec30842 | 2013-03-25 00:02:01 +0100 | [diff] [blame] | 1020 | d->idx = i; |
| 1021 | } |
| 1022 | |
| 1023 | return 0; |
| 1024 | } |
| 1025 | |
| 1026 | int cmd_diff(int argc, const char **argv, const char *prefix __maybe_unused) |
| 1027 | { |
| 1028 | sort_order = diff__default_sort_order; |
| 1029 | argc = parse_options(argc, argv, options, diff_usage, 0); |
| 1030 | |
Arnaldo Carvalho de Melo | 655000e | 2009-12-15 20:04:40 -0200 | [diff] [blame] | 1031 | if (symbol__init() < 0) |
| 1032 | return -1; |
| 1033 | |
Jiri Olsa | ec30842 | 2013-03-25 00:02:01 +0100 | [diff] [blame] | 1034 | if (data_init(argc, argv) < 0) |
| 1035 | return -1; |
| 1036 | |
Jiri Olsa | 1d77822 | 2012-10-04 21:49:39 +0900 | [diff] [blame] | 1037 | ui_init(); |
| 1038 | |
Namhyung Kim | 5530998 | 2013-02-06 14:57:16 +0900 | [diff] [blame] | 1039 | if (setup_sorting() < 0) |
| 1040 | usage_with_options(diff_usage, options); |
| 1041 | |
Arnaldo Carvalho de Melo | 86a9eee | 2009-12-14 20:09:31 -0200 | [diff] [blame] | 1042 | setup_pager(); |
Arnaldo Carvalho de Melo | c351c28 | 2009-12-16 13:49:27 -0200 | [diff] [blame] | 1043 | |
Namhyung Kim | 08e7154 | 2013-04-03 21:26:19 +0900 | [diff] [blame] | 1044 | sort__setup_elide(NULL); |
Arnaldo Carvalho de Melo | c351c28 | 2009-12-16 13:49:27 -0200 | [diff] [blame] | 1045 | |
Arnaldo Carvalho de Melo | 86a9eee | 2009-12-14 20:09:31 -0200 | [diff] [blame] | 1046 | return __cmd_diff(); |
| 1047 | } |