t/README: add missing value for GIT_TEST_DEFAULT_REF_FORMAT
[git/gitster.git] / trace2 / tr2_tgt_perf.c
bloba6f9a8a193e058fc164a8e9bd8dc823b7a317a85
1 #include "git-compat-util.h"
2 #include "config.h"
3 #include "repository.h"
4 #include "run-command.h"
5 #include "quote.h"
6 #include "version.h"
7 #include "json-writer.h"
8 #include "trace2/tr2_dst.h"
9 #include "trace2/tr2_sid.h"
10 #include "trace2/tr2_sysenv.h"
11 #include "trace2/tr2_tbuf.h"
12 #include "trace2/tr2_tgt.h"
13 #include "trace2/tr2_tls.h"
14 #include "trace2/tr2_tmr.h"
16 static struct tr2_dst tr2dst_perf = {
17 .sysenv_var = TR2_SYSENV_PERF,
21 * Use TR2_SYSENV_PERF_BRIEF to omit the "<time> <file>:<line>"
22 * fields from each line written to the builtin performance target.
24 * Unit tests may want to use this to help with testing.
26 static int tr2env_perf_be_brief;
28 #define TR2FMT_PERF_FL_WIDTH (28)
29 #define TR2FMT_PERF_MAX_EVENT_NAME (12)
30 #define TR2FMT_PERF_REPO_WIDTH (3)
31 #define TR2FMT_PERF_CATEGORY_WIDTH (12)
33 #define TR2_INDENT (2)
34 #define TR2_INDENT_LENGTH(ctx) (((ctx)->nr_open_regions - 1) * TR2_INDENT)
36 static int fn_init(void)
38 int want = tr2_dst_trace_want(&tr2dst_perf);
39 int want_brief;
40 const char *brief;
42 if (!want)
43 return want;
45 brief = tr2_sysenv_get(TR2_SYSENV_PERF_BRIEF);
46 if (brief && *brief &&
47 ((want_brief = git_parse_maybe_bool(brief)) != -1))
48 tr2env_perf_be_brief = want_brief;
50 return want;
53 static void fn_term(void)
55 tr2_dst_trace_disable(&tr2dst_perf);
59 * Format trace line prefix in human-readable classic format for
60 * the performance target:
61 * "[<time> [<file>:<line>] <bar>] <nr_parents> <bar>
62 * <thread_name> <bar> <event_name> <bar> [<repo>] <bar>
63 * [<elapsed_absolute>] [<elapsed_relative>] <bar>
64 * [<category>] <bar> [<dots>] "
66 static void perf_fmt_prepare(const char *event_name,
67 struct tr2tls_thread_ctx *ctx, const char *file,
68 int line, const struct repository *repo,
69 uint64_t *p_us_elapsed_absolute,
70 uint64_t *p_us_elapsed_relative,
71 const char *category, struct strbuf *buf)
73 int len;
75 strbuf_setlen(buf, 0);
77 if (!tr2env_perf_be_brief) {
78 struct tr2_tbuf tb_now;
79 size_t fl_end_col;
81 tr2_tbuf_local_time(&tb_now);
82 strbuf_addstr(buf, tb_now.buf);
83 strbuf_addch(buf, ' ');
85 fl_end_col = buf->len + TR2FMT_PERF_FL_WIDTH;
87 if (file && *file) {
88 struct strbuf buf_fl = STRBUF_INIT;
90 strbuf_addf(&buf_fl, "%s:%d", file, line);
92 if (buf_fl.len <= TR2FMT_PERF_FL_WIDTH)
93 strbuf_addbuf(buf, &buf_fl);
94 else {
95 size_t avail = TR2FMT_PERF_FL_WIDTH - 3;
96 strbuf_addstr(buf, "...");
97 strbuf_add(buf,
98 &buf_fl.buf[buf_fl.len - avail],
99 avail);
102 strbuf_release(&buf_fl);
105 while (buf->len < fl_end_col)
106 strbuf_addch(buf, ' ');
108 strbuf_addstr(buf, " | ");
111 strbuf_addf(buf, "d%d | ", tr2_sid_depth());
112 strbuf_addf(buf, "%-*s | %-*s | ", TR2_MAX_THREAD_NAME,
113 ctx->thread_name, TR2FMT_PERF_MAX_EVENT_NAME,
114 event_name);
116 len = buf->len + TR2FMT_PERF_REPO_WIDTH;
117 if (repo)
118 strbuf_addf(buf, "r%d ", repo->trace2_repo_id);
119 while (buf->len < len)
120 strbuf_addch(buf, ' ');
121 strbuf_addstr(buf, " | ");
123 if (p_us_elapsed_absolute)
124 strbuf_addf(buf, "%9.6f | ",
125 ((double)(*p_us_elapsed_absolute)) / 1000000.0);
126 else
127 strbuf_addf(buf, "%9s | ", " ");
129 if (p_us_elapsed_relative)
130 strbuf_addf(buf, "%9.6f | ",
131 ((double)(*p_us_elapsed_relative)) / 1000000.0);
132 else
133 strbuf_addf(buf, "%9s | ", " ");
135 strbuf_addf(buf, "%-*.*s | ", TR2FMT_PERF_CATEGORY_WIDTH,
136 TR2FMT_PERF_CATEGORY_WIDTH, (category ? category : ""));
138 if (ctx->nr_open_regions > 0)
139 strbuf_addchars(buf, '.', TR2_INDENT_LENGTH(ctx));
142 static void perf_io_write_fl(const char *file, int line, const char *event_name,
143 const struct repository *repo,
144 uint64_t *p_us_elapsed_absolute,
145 uint64_t *p_us_elapsed_relative,
146 const char *category,
147 const struct strbuf *buf_payload)
149 struct tr2tls_thread_ctx *ctx = tr2tls_get_self();
150 struct strbuf buf_line = STRBUF_INIT;
152 perf_fmt_prepare(event_name, ctx, file, line, repo,
153 p_us_elapsed_absolute, p_us_elapsed_relative, category,
154 &buf_line);
155 strbuf_addbuf(&buf_line, buf_payload);
156 tr2_dst_write_line(&tr2dst_perf, &buf_line);
157 strbuf_release(&buf_line);
160 static void fn_version_fl(const char *file, int line)
162 const char *event_name = "version";
163 struct strbuf buf_payload = STRBUF_INIT;
165 strbuf_addstr(&buf_payload, git_version_string);
167 perf_io_write_fl(file, line, event_name, NULL, NULL, NULL, NULL,
168 &buf_payload);
169 strbuf_release(&buf_payload);
172 static void fn_start_fl(const char *file, int line,
173 uint64_t us_elapsed_absolute, const char **argv)
175 const char *event_name = "start";
176 struct strbuf buf_payload = STRBUF_INIT;
178 sq_append_quote_argv_pretty(&buf_payload, argv);
180 perf_io_write_fl(file, line, event_name, NULL, &us_elapsed_absolute,
181 NULL, NULL, &buf_payload);
182 strbuf_release(&buf_payload);
185 static void fn_exit_fl(const char *file, int line, uint64_t us_elapsed_absolute,
186 int code)
188 const char *event_name = "exit";
189 struct strbuf buf_payload = STRBUF_INIT;
191 strbuf_addf(&buf_payload, "code:%d", code);
193 perf_io_write_fl(file, line, event_name, NULL, &us_elapsed_absolute,
194 NULL, NULL, &buf_payload);
195 strbuf_release(&buf_payload);
198 static void fn_signal(uint64_t us_elapsed_absolute, int signo)
200 const char *event_name = "signal";
201 struct strbuf buf_payload = STRBUF_INIT;
203 strbuf_addf(&buf_payload, "signo:%d", signo);
205 perf_io_write_fl(__FILE__, __LINE__, event_name, NULL,
206 &us_elapsed_absolute, NULL, NULL, &buf_payload);
207 strbuf_release(&buf_payload);
210 static void fn_atexit(uint64_t us_elapsed_absolute, int code)
212 const char *event_name = "atexit";
213 struct strbuf buf_payload = STRBUF_INIT;
215 strbuf_addf(&buf_payload, "code:%d", code);
217 perf_io_write_fl(__FILE__, __LINE__, event_name, NULL,
218 &us_elapsed_absolute, NULL, NULL, &buf_payload);
219 strbuf_release(&buf_payload);
222 static void maybe_append_string_va(struct strbuf *buf, const char *fmt,
223 va_list ap)
225 if (fmt && *fmt) {
226 va_list copy_ap;
228 va_copy(copy_ap, ap);
229 strbuf_vaddf(buf, fmt, copy_ap);
230 va_end(copy_ap);
231 return;
235 static void fn_error_va_fl(const char *file, int line, const char *fmt,
236 va_list ap)
238 const char *event_name = "error";
239 struct strbuf buf_payload = STRBUF_INIT;
241 maybe_append_string_va(&buf_payload, fmt, ap);
243 perf_io_write_fl(file, line, event_name, NULL, NULL, NULL, NULL,
244 &buf_payload);
245 strbuf_release(&buf_payload);
248 static void fn_command_path_fl(const char *file, int line, const char *pathname)
250 const char *event_name = "cmd_path";
251 struct strbuf buf_payload = STRBUF_INIT;
253 strbuf_addstr(&buf_payload, pathname);
255 perf_io_write_fl(file, line, event_name, NULL, NULL, NULL, NULL,
256 &buf_payload);
257 strbuf_release(&buf_payload);
260 static void fn_command_ancestry_fl(const char *file, int line, const char **parent_names)
262 const char *event_name = "cmd_ancestry";
263 struct strbuf buf_payload = STRBUF_INIT;
265 strbuf_addstr(&buf_payload, "ancestry:[");
266 /* It's not an argv but the rules are basically the same. */
267 sq_append_quote_argv_pretty(&buf_payload, parent_names);
268 strbuf_addch(&buf_payload, ']');
270 perf_io_write_fl(file, line, event_name, NULL, NULL, NULL, NULL,
271 &buf_payload);
272 strbuf_release(&buf_payload);
275 static void fn_command_name_fl(const char *file, int line, const char *name,
276 const char *hierarchy)
278 const char *event_name = "cmd_name";
279 struct strbuf buf_payload = STRBUF_INIT;
281 strbuf_addstr(&buf_payload, name);
282 if (hierarchy && *hierarchy)
283 strbuf_addf(&buf_payload, " (%s)", hierarchy);
285 perf_io_write_fl(file, line, event_name, NULL, NULL, NULL, NULL,
286 &buf_payload);
287 strbuf_release(&buf_payload);
290 static void fn_command_mode_fl(const char *file, int line, const char *mode)
292 const char *event_name = "cmd_mode";
293 struct strbuf buf_payload = STRBUF_INIT;
295 strbuf_addstr(&buf_payload, mode);
297 perf_io_write_fl(file, line, event_name, NULL, NULL, NULL, NULL,
298 &buf_payload);
299 strbuf_release(&buf_payload);
302 static void fn_alias_fl(const char *file, int line, const char *alias,
303 const char **argv)
305 const char *event_name = "alias";
306 struct strbuf buf_payload = STRBUF_INIT;
308 strbuf_addf(&buf_payload, "alias:%s argv:[", alias);
309 sq_append_quote_argv_pretty(&buf_payload, argv);
310 strbuf_addch(&buf_payload, ']');
312 perf_io_write_fl(file, line, event_name, NULL, NULL, NULL, NULL,
313 &buf_payload);
314 strbuf_release(&buf_payload);
317 static void fn_child_start_fl(const char *file, int line,
318 uint64_t us_elapsed_absolute,
319 const struct child_process *cmd)
321 const char *event_name = "child_start";
322 struct strbuf buf_payload = STRBUF_INIT;
324 if (cmd->trace2_hook_name) {
325 strbuf_addf(&buf_payload, "[ch%d] class:hook hook:%s",
326 cmd->trace2_child_id, cmd->trace2_hook_name);
327 } else {
328 const char *child_class =
329 cmd->trace2_child_class ? cmd->trace2_child_class : "?";
330 strbuf_addf(&buf_payload, "[ch%d] class:%s",
331 cmd->trace2_child_id, child_class);
334 if (cmd->dir) {
335 strbuf_addstr(&buf_payload, " cd:");
336 sq_quote_buf_pretty(&buf_payload, cmd->dir);
339 strbuf_addstr(&buf_payload, " argv:[");
340 if (cmd->git_cmd) {
341 strbuf_addstr(&buf_payload, "git");
342 if (cmd->args.nr)
343 strbuf_addch(&buf_payload, ' ');
345 sq_append_quote_argv_pretty(&buf_payload, cmd->args.v);
346 strbuf_addch(&buf_payload, ']');
348 perf_io_write_fl(file, line, event_name, NULL, &us_elapsed_absolute,
349 NULL, NULL, &buf_payload);
350 strbuf_release(&buf_payload);
353 static void fn_child_exit_fl(const char *file, int line,
354 uint64_t us_elapsed_absolute, int cid, int pid,
355 int code, uint64_t us_elapsed_child)
357 const char *event_name = "child_exit";
358 struct strbuf buf_payload = STRBUF_INIT;
360 strbuf_addf(&buf_payload, "[ch%d] pid:%d code:%d", cid, pid, code);
362 perf_io_write_fl(file, line, event_name, NULL, &us_elapsed_absolute,
363 &us_elapsed_child, NULL, &buf_payload);
364 strbuf_release(&buf_payload);
367 static void fn_child_ready_fl(const char *file, int line,
368 uint64_t us_elapsed_absolute, int cid, int pid,
369 const char *ready, uint64_t us_elapsed_child)
371 const char *event_name = "child_ready";
372 struct strbuf buf_payload = STRBUF_INIT;
374 strbuf_addf(&buf_payload, "[ch%d] pid:%d ready:%s", cid, pid, ready);
376 perf_io_write_fl(file, line, event_name, NULL, &us_elapsed_absolute,
377 &us_elapsed_child, NULL, &buf_payload);
378 strbuf_release(&buf_payload);
381 static void fn_thread_start_fl(const char *file, int line,
382 uint64_t us_elapsed_absolute)
384 const char *event_name = "thread_start";
385 struct strbuf buf_payload = STRBUF_INIT;
387 perf_io_write_fl(file, line, event_name, NULL, &us_elapsed_absolute,
388 NULL, NULL, &buf_payload);
389 strbuf_release(&buf_payload);
392 static void fn_thread_exit_fl(const char *file, int line,
393 uint64_t us_elapsed_absolute,
394 uint64_t us_elapsed_thread)
396 const char *event_name = "thread_exit";
397 struct strbuf buf_payload = STRBUF_INIT;
399 perf_io_write_fl(file, line, event_name, NULL, &us_elapsed_absolute,
400 &us_elapsed_thread, NULL, &buf_payload);
401 strbuf_release(&buf_payload);
404 static void fn_exec_fl(const char *file, int line, uint64_t us_elapsed_absolute,
405 int exec_id, const char *exe, const char **argv)
407 const char *event_name = "exec";
408 struct strbuf buf_payload = STRBUF_INIT;
410 strbuf_addf(&buf_payload, "id:%d ", exec_id);
411 strbuf_addstr(&buf_payload, "argv:[");
412 if (exe) {
413 strbuf_addstr(&buf_payload, exe);
414 if (argv[0])
415 strbuf_addch(&buf_payload, ' ');
417 sq_append_quote_argv_pretty(&buf_payload, argv);
418 strbuf_addch(&buf_payload, ']');
420 perf_io_write_fl(file, line, event_name, NULL, &us_elapsed_absolute,
421 NULL, NULL, &buf_payload);
422 strbuf_release(&buf_payload);
425 static void fn_exec_result_fl(const char *file, int line,
426 uint64_t us_elapsed_absolute, int exec_id,
427 int code)
429 const char *event_name = "exec_result";
430 struct strbuf buf_payload = STRBUF_INIT;
432 strbuf_addf(&buf_payload, "id:%d code:%d", exec_id, code);
433 if (code > 0)
434 strbuf_addf(&buf_payload, " err:%s", strerror(code));
436 perf_io_write_fl(file, line, event_name, NULL, &us_elapsed_absolute,
437 NULL, NULL, &buf_payload);
438 strbuf_release(&buf_payload);
441 static void fn_param_fl(const char *file, int line, const char *param,
442 const char *value, const struct key_value_info *kvi)
444 const char *event_name = "def_param";
445 struct strbuf buf_payload = STRBUF_INIT;
446 struct strbuf scope_payload = STRBUF_INIT;
447 enum config_scope scope = kvi->scope;
448 const char *scope_name = config_scope_name(scope);
450 strbuf_addf(&buf_payload, "%s:%s", param, value);
451 strbuf_addf(&scope_payload, "%s:%s", "scope", scope_name);
453 perf_io_write_fl(file, line, event_name, NULL, NULL, NULL,
454 scope_payload.buf, &buf_payload);
455 strbuf_release(&buf_payload);
456 strbuf_release(&scope_payload);
459 static void fn_repo_fl(const char *file, int line,
460 const struct repository *repo)
462 const char *event_name = "def_repo";
463 struct strbuf buf_payload = STRBUF_INIT;
465 strbuf_addstr(&buf_payload, "worktree:");
466 sq_quote_buf_pretty(&buf_payload, repo->worktree);
468 perf_io_write_fl(file, line, event_name, repo, NULL, NULL, NULL,
469 &buf_payload);
470 strbuf_release(&buf_payload);
473 static void fn_region_enter_printf_va_fl(const char *file, int line,
474 uint64_t us_elapsed_absolute,
475 const char *category,
476 const char *label,
477 const struct repository *repo,
478 const char *fmt, va_list ap)
480 const char *event_name = "region_enter";
481 struct strbuf buf_payload = STRBUF_INIT;
483 if (label)
484 strbuf_addf(&buf_payload, "label:%s", label);
485 if (fmt && *fmt) {
486 strbuf_addch(&buf_payload, ' ');
487 maybe_append_string_va(&buf_payload, fmt, ap);
490 perf_io_write_fl(file, line, event_name, repo, &us_elapsed_absolute,
491 NULL, category, &buf_payload);
492 strbuf_release(&buf_payload);
495 static void fn_region_leave_printf_va_fl(
496 const char *file, int line, uint64_t us_elapsed_absolute,
497 uint64_t us_elapsed_region, const char *category, const char *label,
498 const struct repository *repo, const char *fmt, va_list ap)
500 const char *event_name = "region_leave";
501 struct strbuf buf_payload = STRBUF_INIT;
503 if (label)
504 strbuf_addf(&buf_payload, "label:%s", label);
505 if (fmt && *fmt) {
506 strbuf_addch(&buf_payload, ' ' );
507 maybe_append_string_va(&buf_payload, fmt, ap);
510 perf_io_write_fl(file, line, event_name, repo, &us_elapsed_absolute,
511 &us_elapsed_region, category, &buf_payload);
512 strbuf_release(&buf_payload);
515 static void fn_data_fl(const char *file, int line, uint64_t us_elapsed_absolute,
516 uint64_t us_elapsed_region, const char *category,
517 const struct repository *repo, const char *key,
518 const char *value)
520 const char *event_name = "data";
521 struct strbuf buf_payload = STRBUF_INIT;
523 strbuf_addf(&buf_payload, "%s:%s", key, value);
525 perf_io_write_fl(file, line, event_name, repo, &us_elapsed_absolute,
526 &us_elapsed_region, category, &buf_payload);
527 strbuf_release(&buf_payload);
530 static void fn_data_json_fl(const char *file, int line,
531 uint64_t us_elapsed_absolute,
532 uint64_t us_elapsed_region, const char *category,
533 const struct repository *repo, const char *key,
534 const struct json_writer *value)
536 const char *event_name = "data_json";
537 struct strbuf buf_payload = STRBUF_INIT;
539 strbuf_addf(&buf_payload, "%s:%s", key, value->json.buf);
541 perf_io_write_fl(file, line, event_name, repo, &us_elapsed_absolute,
542 &us_elapsed_region, category, &buf_payload);
543 strbuf_release(&buf_payload);
546 static void fn_printf_va_fl(const char *file, int line,
547 uint64_t us_elapsed_absolute, const char *fmt,
548 va_list ap)
550 const char *event_name = "printf";
551 struct strbuf buf_payload = STRBUF_INIT;
553 maybe_append_string_va(&buf_payload, fmt, ap);
555 perf_io_write_fl(file, line, event_name, NULL, &us_elapsed_absolute,
556 NULL, NULL, &buf_payload);
557 strbuf_release(&buf_payload);
560 static void fn_timer(const struct tr2_timer_metadata *meta,
561 const struct tr2_timer *timer,
562 int is_final_data)
564 const char *event_name = is_final_data ? "timer" : "th_timer";
565 struct strbuf buf_payload = STRBUF_INIT;
566 double t_total = NS_TO_SEC(timer->total_ns);
567 double t_min = NS_TO_SEC(timer->min_ns);
568 double t_max = NS_TO_SEC(timer->max_ns);
570 strbuf_addf(&buf_payload, ("name:%s"
571 " intervals:%"PRIu64
572 " total:%8.6f min:%8.6f max:%8.6f"),
573 meta->name,
574 timer->interval_count,
575 t_total, t_min, t_max);
577 perf_io_write_fl(__FILE__, __LINE__, event_name, NULL, NULL, NULL,
578 meta->category, &buf_payload);
579 strbuf_release(&buf_payload);
582 static void fn_counter(const struct tr2_counter_metadata *meta,
583 const struct tr2_counter *counter,
584 int is_final_data)
586 const char *event_name = is_final_data ? "counter" : "th_counter";
587 struct strbuf buf_payload = STRBUF_INIT;
589 strbuf_addf(&buf_payload, "name:%s value:%"PRIu64,
590 meta->name,
591 counter->value);
593 perf_io_write_fl(__FILE__, __LINE__, event_name, NULL, NULL, NULL,
594 meta->category, &buf_payload);
595 strbuf_release(&buf_payload);
598 struct tr2_tgt tr2_tgt_perf = {
599 .pdst = &tr2dst_perf,
601 .pfn_init = fn_init,
602 .pfn_term = fn_term,
604 .pfn_version_fl = fn_version_fl,
605 .pfn_start_fl = fn_start_fl,
606 .pfn_exit_fl = fn_exit_fl,
607 .pfn_signal = fn_signal,
608 .pfn_atexit = fn_atexit,
609 .pfn_error_va_fl = fn_error_va_fl,
610 .pfn_command_path_fl = fn_command_path_fl,
611 .pfn_command_ancestry_fl = fn_command_ancestry_fl,
612 .pfn_command_name_fl = fn_command_name_fl,
613 .pfn_command_mode_fl = fn_command_mode_fl,
614 .pfn_alias_fl = fn_alias_fl,
615 .pfn_child_start_fl = fn_child_start_fl,
616 .pfn_child_exit_fl = fn_child_exit_fl,
617 .pfn_child_ready_fl = fn_child_ready_fl,
618 .pfn_thread_start_fl = fn_thread_start_fl,
619 .pfn_thread_exit_fl = fn_thread_exit_fl,
620 .pfn_exec_fl = fn_exec_fl,
621 .pfn_exec_result_fl = fn_exec_result_fl,
622 .pfn_param_fl = fn_param_fl,
623 .pfn_repo_fl = fn_repo_fl,
624 .pfn_region_enter_printf_va_fl = fn_region_enter_printf_va_fl,
625 .pfn_region_leave_printf_va_fl = fn_region_leave_printf_va_fl,
626 .pfn_data_fl = fn_data_fl,
627 .pfn_data_json_fl = fn_data_json_fl,
628 .pfn_printf_va_fl = fn_printf_va_fl,
629 .pfn_timer = fn_timer,
630 .pfn_counter = fn_counter,