1 /*
2 * Copyright (C) 2012 Fusion-io
3 *
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public
6 * License v2 as published by the Free Software Foundation.
7 *
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
12 *
13 * You should have received a copy of the GNU General Public License
14 * along with this program; if not, write to the Free Software
15 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
16 *
17 * Parts of this file were imported from Jens Axboe's blktrace sources (also GPL)
18 */
19 #include <sys/types.h>
20 #include <sys/stat.h>
21 #include <fcntl.h>
22 #include <unistd.h>
23 #include <stdlib.h>
24 #include <stdio.h>
25 #include <math.h>
26 #include <inttypes.h>
27 #include <string.h>
28 #include <asm/types.h>
29 #include <errno.h>
30 #include <sys/mman.h>
31 #include <time.h>
32 #include <math.h>
33 #include <getopt.h>
34 #include <limits.h>
35 #include <float.h>
36 #include <signal.h>
37
38 #include "plot.h"
39 #include "blkparse.h"
40 #include "list.h"
41 #include "tracers.h"
42 #include "mpstat.h"
43 #include "fio.h"
44
45 LIST_HEAD(all_traces);
46 LIST_HEAD(fio_traces);
47
48 static char line[1024];
49 static int line_len = 1024;
50 static int found_mpstat = 0;
51 static int make_movie = 0;
52 static int keep_movie_svgs = 0;
53 static int opt_graph_width = 0;
54 static int opt_graph_height = 0;
55
56 static int columns = 1;
57 static int num_xticks = 9;
58 static int num_yticks = 4;
59
60 static double min_time = 0;
61 static double max_time = DBL_MAX;
62 static unsigned long long min_mb = 0;
63 static unsigned long long max_mb = ULLONG_MAX >> 20;
64
65 int plot_io_action = 0;
66 int io_per_process = 0;
67 unsigned int longest_proc_name = 0;
68
69 /*
70 * this doesn't include the IO graph,
71 * but it counts the other graphs as they go out
72 */
73 static int total_graphs_written = 1;
74
75 enum {
76 IO_GRAPH_INDEX = 0,
77 TPUT_GRAPH_INDEX,
78 FIO_GRAPH_INDEX,
79 CPU_SYS_GRAPH_INDEX,
80 CPU_IO_GRAPH_INDEX,
81 CPU_IRQ_GRAPH_INDEX,
82 CPU_SOFT_GRAPH_INDEX,
83 CPU_USER_GRAPH_INDEX,
84 LATENCY_GRAPH_INDEX,
85 QUEUE_DEPTH_GRAPH_INDEX,
86 IOPS_GRAPH_INDEX,
87 TOTAL_GRAPHS
88 };
89
90 enum {
91 MPSTAT_SYS = 0,
92 MPSTAT_IRQ,
93 MPSTAT_IO,
94 MPSTAT_SOFT,
95 MPSTAT_USER,
96 MPSTAT_GRAPHS
97 };
98
99 static char *graphs_by_name[] = {
100 "io",
101 "tput",
102 "fio",
103 "cpu-sys",
104 "cpu-io",
105 "cpu-irq",
106 "cpu-soft",
107 "cpu-user",
108 "latency",
109 "queue-depth",
110 "iops",
111 };
112
113 enum {
114 MOVIE_SPINDLE,
115 MOVIE_RECT,
116 NUM_MOVIE_STYLES,
117 };
118
119 char *movie_styles[] = {
120 "spindle",
121 "rect",
122 NULL
123 };
124
125 static int movie_style = 0;
126
lookup_movie_style(char * str)127 static int lookup_movie_style(char *str)
128 {
129 int i;
130
131 for (i = 0; i < NUM_MOVIE_STYLES; i++) {
132 if (strcmp(str, movie_styles[i]) == 0)
133 return i;
134 }
135 return -1;
136 }
137
138 static int active_graphs[TOTAL_GRAPHS];
139 static int last_active_graph = IOPS_GRAPH_INDEX;
140
141 static int label_index = 0;
142 static int num_traces = 0;
143 static int num_fio_traces = 0;
144 static int longest_label = 0;
145
146 static char *graph_title = "";
147 static char *output_filename = "trace.svg";
148 static char *blktrace_devices[MAX_DEVICES_PER_TRACE];
149 static int num_blktrace_devices = 0;
150 static char *blktrace_outfile = "trace";
151 static char *blktrace_dest_dir = ".";
152 static char **prog_argv = NULL;
153 static int prog_argc = 0;
154 static char *ffmpeg_codec = "libx264";
155
alloc_mpstat_gld(struct trace_file * tf)156 static void alloc_mpstat_gld(struct trace_file *tf)
157 {
158 struct graph_line_data **ptr;
159
160 if (tf->trace->mpstat_num_cpus == 0)
161 return;
162
163 ptr = calloc((tf->trace->mpstat_num_cpus + 1) * MPSTAT_GRAPHS,
164 sizeof(struct graph_line_data *));
165 if (!ptr) {
166 perror("Unable to allocate mpstat arrays\n");
167 exit(1);
168 }
169 tf->mpstat_gld = ptr;
170 }
171
enable_all_graphs(void)172 static void enable_all_graphs(void)
173 {
174 int i;
175 for (i = 0; i < TOTAL_GRAPHS; i++)
176 active_graphs[i] = 1;
177 }
178
disable_all_graphs(void)179 static void disable_all_graphs(void)
180 {
181 int i;
182 for (i = 0; i < TOTAL_GRAPHS; i++)
183 active_graphs[i] = 0;
184 }
185
enable_one_graph(char * name)186 static int enable_one_graph(char *name)
187 {
188 int i;
189 for (i = 0; i < TOTAL_GRAPHS; i++) {
190 if (strcmp(name, graphs_by_name[i]) == 0) {
191 active_graphs[i] = 1;
192 return 0;
193 }
194 }
195 return -ENOENT;
196 }
197
disable_one_graph(char * name)198 static int disable_one_graph(char *name)
199 {
200 int i;
201 for (i = 0; i < TOTAL_GRAPHS; i++) {
202 if (strcmp(name, graphs_by_name[i]) == 0) {
203 active_graphs[i] = 0;
204 return 0;
205 }
206 }
207 return -ENOENT;
208 }
209
last_graph(void)210 static int last_graph(void)
211 {
212 int i;
213 for (i = TOTAL_GRAPHS - 1; i >= 0; i--) {
214 if (active_graphs[i]) {
215 return i;
216 }
217 }
218 return -ENOENT;
219 }
220
graphs_left(int cur)221 static int graphs_left(int cur)
222 {
223 int i;
224 int left = 0;
225 for (i = cur; i < TOTAL_GRAPHS; i++) {
226 if (active_graphs[i])
227 left++;
228 }
229 return left;
230 }
231
join_path(char * dest_dir,char * filename)232 static char * join_path(char *dest_dir, char *filename)
233 {
234 /* alloc 2 extra bytes for '/' and '\0' */
235 char *path = malloc(strlen(dest_dir) + strlen(filename) + 2);
236 sprintf(path, "%s%s%s", dest_dir, "/", filename);
237
238 return path;
239 }
240
add_trace_file(char * filename)241 static void add_trace_file(char *filename)
242 {
243 struct trace_file *tf;
244
245 tf = calloc(1, sizeof(*tf));
246 if (!tf) {
247 fprintf(stderr, "Unable to allocate memory\n");
248 exit(1);
249 }
250 tf->label = "";
251 tf->filename = strdup(filename);
252 list_add_tail(&tf->list, &all_traces);
253 tf->line_color = "black";
254 num_traces++;
255 }
256
add_fio_trace_file(char * filename)257 static void add_fio_trace_file(char *filename)
258 {
259 struct trace_file *tf;
260
261 tf = calloc(1, sizeof(*tf));
262 if (!tf) {
263 fprintf(stderr, "Unable to allocate memory\n");
264 exit(1);
265 }
266 tf->label = "";
267 tf->filename = strdup(filename);
268 list_add_tail(&tf->list, &fio_traces);
269 tf->line_color = pick_fio_color();
270 tf->fio_trace = 1;
271 num_fio_traces++;
272 }
273
setup_trace_file_graphs(void)274 static void setup_trace_file_graphs(void)
275 {
276 struct trace_file *tf;
277 int i;
278 int alloc_ptrs;
279
280 if (io_per_process)
281 alloc_ptrs = 16;
282 else
283 alloc_ptrs = 1;
284
285 list_for_each_entry(tf, &all_traces, list) {
286 tf->tput_reads_gld = alloc_line_data(tf->min_seconds, tf->max_seconds, tf->stop_seconds);
287 tf->tput_writes_gld = alloc_line_data(tf->min_seconds, tf->max_seconds, tf->stop_seconds);
288 tf->latency_gld = alloc_line_data(tf->min_seconds, tf->max_seconds, tf->stop_seconds);
289 tf->queue_depth_gld = alloc_line_data(tf->min_seconds, tf->max_seconds, tf->stop_seconds);
290
291 tf->iop_gld = alloc_line_data(tf->min_seconds, tf->max_seconds, tf->stop_seconds);
292 tf->gdd_writes = calloc(alloc_ptrs, sizeof(struct graph_dot_data *));
293 tf->gdd_reads = calloc(alloc_ptrs, sizeof(struct graph_dot_data *));
294 tf->io_plots_allocated = alloc_ptrs;
295
296 if (tf->trace->mpstat_num_cpus == 0)
297 continue;
298
299 alloc_mpstat_gld(tf);
300 for (i = 0; i < (tf->trace->mpstat_num_cpus + 1) * MPSTAT_GRAPHS; i++) {
301 tf->mpstat_gld[i] =
302 alloc_line_data(tf->mpstat_min_seconds,
303 tf->mpstat_max_seconds,
304 tf->mpstat_max_seconds);
305 tf->mpstat_gld[i]->max = 100;
306 }
307 }
308
309 list_for_each_entry(tf, &fio_traces, list) {
310 if (tf->trace->fio_seconds > 0) {
311 tf->fio_gld = alloc_line_data(tf->min_seconds,
312 tf->max_seconds,
313 tf->stop_seconds);
314 }
315 }
316
317 }
318
read_traces(void)319 static void read_traces(void)
320 {
321 struct trace_file *tf;
322 struct trace *trace;
323 u64 last_time;
324 u64 ymin;
325 u64 ymax;
326 u64 max_bank;
327 u64 max_bank_offset;
328 char *path = NULL;
329
330 list_for_each_entry(tf, &all_traces, list) {
331 if (num_blktrace_devices)
332 path = join_path(blktrace_dest_dir, tf->filename);
333 else
334 path = strdup(tf->filename);
335
336 trace = open_trace(path);
337 if (!trace)
338 exit(1);
339
340 last_time = find_last_time(trace);
341 tf->trace = trace;
342 tf->max_seconds = SECONDS(last_time) + 1;
343 tf->stop_seconds = SECONDS(last_time) + 1;
344
345 find_extreme_offsets(trace, &tf->min_offset, &tf->max_offset,
346 &max_bank, &max_bank_offset);
347 filter_outliers(trace, tf->min_offset, tf->max_offset, &ymin, &ymax);
348 tf->min_offset = ymin;
349 tf->max_offset = ymax;
350
351 read_mpstat(trace, path);
352 tf->mpstat_stop_seconds = trace->mpstat_seconds;
353 tf->mpstat_max_seconds = trace->mpstat_seconds;
354 if (tf->mpstat_max_seconds)
355 found_mpstat = 1;
356
357 free(path);
358 }
359
360 list_for_each_entry(tf, &fio_traces, list) {
361 trace = open_fio_trace(tf->filename);
362 if (!trace)
363 exit(1);
364 tf->trace = trace;
365 tf->max_seconds = tf->trace->fio_seconds;
366 tf->stop_seconds = tf->trace->fio_seconds;
367 }
368 }
369
pick_line_graph_color(void)370 static void pick_line_graph_color(void)
371 {
372 struct trace_file *tf;
373 int i;
374
375 list_for_each_entry(tf, &all_traces, list) {
376 for (i = 0; i < tf->io_plots; i++) {
377 if (tf->gdd_reads[i]) {
378 tf->line_color = tf->gdd_reads[i]->color;
379 tf->reads_color = tf->gdd_reads[i]->color;
380 }
381 if (tf->gdd_writes[i]) {
382 tf->line_color = tf->gdd_writes[i]->color;
383 tf->writes_color = tf->gdd_writes[i]->color;
384 }
385 if (tf->writes_color && tf->reads_color)
386 break;
387 }
388 if (!tf->reads_color)
389 tf->reads_color = tf->line_color;
390 if (!tf->writes_color)
391 tf->writes_color = tf->line_color;
392 }
393 }
394
read_fio_events(struct trace_file * tf)395 static void read_fio_events(struct trace_file *tf)
396 {
397 u64 bw = 0;
398 int time = 0;
399 int dir = 0;
400 int ret;
401
402 first_fio(tf->trace);
403 while (1) {
404 ret = read_fio_event(tf->trace, &time, &bw, &dir);
405 if (ret)
406 break;
407
408 if (dir <= 1)
409 add_fio_gld(time, bw, tf->fio_gld);
410 if (next_fio_line(tf->trace))
411 break;
412 }
413 }
414
read_trace_events(void)415 static void read_trace_events(void)
416 {
417
418 struct trace_file *tf;
419 struct trace *trace;
420 int ret;
421 int i;
422 unsigned int time;
423 double user, sys, iowait, irq, soft;
424 double max_user = 0, max_sys = 0, max_iowait = 0,
425 max_irq = 0, max_soft = 0;
426
427 list_for_each_entry(tf, &fio_traces, list)
428 read_fio_events(tf);
429
430 list_for_each_entry(tf, &all_traces, list) {
431 trace = tf->trace;
432
433 first_record(trace);
434 do {
435 check_record(trace);
436 if (SECONDS(get_record_time(trace)) > tf->max_seconds)
437 continue;
438 add_tput(trace, tf->tput_writes_gld, tf->tput_reads_gld);
439 add_iop(trace, tf->iop_gld);
440 add_io(trace, tf);
441 add_pending_io(trace, tf->queue_depth_gld);
442 add_completed_io(trace, tf->latency_gld);
443 } while (!(ret = next_record(trace)));
444 }
445 list_for_each_entry(tf, &all_traces, list) {
446 trace = tf->trace;
447
448 if (trace->mpstat_num_cpus == 0)
449 continue;
450
451 first_mpstat(trace);
452
453 for (time = 0; time < tf->mpstat_stop_seconds; time++) {
454 for (i = 0; i < (trace->mpstat_num_cpus + 1) * MPSTAT_GRAPHS; i += MPSTAT_GRAPHS) {
455 ret = read_mpstat_event(trace, &user, &sys,
456 &iowait, &irq, &soft);
457 if (ret)
458 goto mpstat_done;
459 if (next_mpstat_line(trace))
460 goto mpstat_done;
461
462 if (sys > max_sys)
463 max_sys = sys;
464 if (user > max_user)
465 max_user = user;
466 if (irq > max_irq)
467 max_irq = irq;
468 if (iowait > max_iowait)
469 max_iowait = iowait;
470
471 add_mpstat_gld(time, sys, tf->mpstat_gld[i + MPSTAT_SYS]);
472 add_mpstat_gld(time, irq, tf->mpstat_gld[i + MPSTAT_IRQ]);
473 add_mpstat_gld(time, soft, tf->mpstat_gld[i + MPSTAT_SOFT]);
474 add_mpstat_gld(time, user, tf->mpstat_gld[i + MPSTAT_USER]);
475 add_mpstat_gld(time, iowait, tf->mpstat_gld[i + MPSTAT_IO]);
476 }
477 if (next_mpstat(trace) == NULL)
478 break;
479 }
480 }
481
482 mpstat_done:
483 list_for_each_entry(tf, &all_traces, list) {
484 trace = tf->trace;
485
486 if (trace->mpstat_num_cpus == 0)
487 continue;
488
489 tf->mpstat_gld[MPSTAT_SYS]->max = max_sys;
490 tf->mpstat_gld[MPSTAT_IRQ]->max = max_irq;
491 tf->mpstat_gld[MPSTAT_SOFT]->max = max_soft;
492 tf->mpstat_gld[MPSTAT_USER]->max = max_user;
493 tf->mpstat_gld[MPSTAT_IO]->max = max_iowait;;
494 }
495 return;
496 }
497
set_trace_label(char * label)498 static void set_trace_label(char *label)
499 {
500 int cur = 0;
501 struct trace_file *tf;
502 int len = strlen(label);
503
504 if (len > longest_label)
505 longest_label = len;
506
507 list_for_each_entry(tf, &all_traces, list) {
508 if (cur == label_index) {
509 tf->label = strdup(label);
510 label_index++;
511 return;
512 break;
513 }
514 cur++;
515 }
516 list_for_each_entry(tf, &fio_traces, list) {
517 if (cur == label_index) {
518 tf->label = strdup(label);
519 label_index++;
520 break;
521 }
522 cur++;
523 }
524 }
525
set_blktrace_outfile(char * arg)526 static void set_blktrace_outfile(char *arg)
527 {
528 char *s = strdup(arg);
529 char *last_dot = strrchr(s, '.');
530
531 if (last_dot) {
532 if (strcmp(last_dot, ".dump") == 0)
533 *last_dot = '\0';
534 }
535 blktrace_outfile = s;
536 }
537
538
compare_minmax_tf(struct trace_file * tf,unsigned int * max_seconds,u64 * min_offset,u64 * max_offset)539 static void compare_minmax_tf(struct trace_file *tf, unsigned int *max_seconds,
540 u64 *min_offset, u64 *max_offset)
541 {
542 if (tf->max_seconds > *max_seconds)
543 *max_seconds = tf->max_seconds;
544 if (tf->max_offset > *max_offset)
545 *max_offset = tf->max_offset;
546 if (tf->min_offset < *min_offset)
547 *min_offset = tf->min_offset;
548 }
549
set_all_minmax_tf(unsigned int min_seconds,unsigned int max_seconds,u64 min_offset,u64 max_offset)550 static void set_all_minmax_tf(unsigned int min_seconds,
551 unsigned int max_seconds,
552 u64 min_offset, u64 max_offset)
553 {
554 struct trace_file *tf;
555 struct list_head *traces = &all_traces;
556 again:
557 list_for_each_entry(tf, traces, list) {
558 tf->min_seconds = min_seconds;
559 tf->max_seconds = max_seconds;
560 if (tf->stop_seconds > max_seconds)
561 tf->stop_seconds = max_seconds;
562 if (tf->mpstat_max_seconds) {
563 tf->mpstat_min_seconds = min_seconds;
564 tf->mpstat_max_seconds = max_seconds;
565 if (tf->mpstat_stop_seconds > max_seconds)
566 tf->mpstat_stop_seconds = max_seconds;
567 }
568 tf->min_offset = min_offset;
569 tf->max_offset = max_offset;
570 }
571 if (traces == &all_traces) {
572 traces = &fio_traces;
573 goto again;
574 }
575 }
576
alloc_pid_plot_history(char * color)577 static struct pid_plot_history *alloc_pid_plot_history(char *color)
578 {
579 struct pid_plot_history *pph;
580
581 pph = calloc(1, sizeof(struct pid_plot_history));
582 if (!pph) {
583 perror("memory allocation failed");
584 exit(1);
585 }
586 pph->history = malloc(sizeof(double) * 4096);
587 if (!pph->history) {
588 perror("memory allocation failed");
589 exit(1);
590 }
591 pph->history_len = 4096;
592 pph->color = color;
593
594 return pph;
595 }
596
alloc_plot_history(struct trace_file * tf)597 static struct plot_history *alloc_plot_history(struct trace_file *tf)
598 {
599 struct plot_history *ph = calloc(1, sizeof(struct plot_history));
600 int i;
601
602 if (!ph) {
603 perror("memory allocation failed");
604 exit(1);
605 }
606 ph->read_pid_history = calloc(tf->io_plots, sizeof(struct pid_plot_history *));
607 if (!ph->read_pid_history) {
608 perror("memory allocation failed");
609 exit(1);
610 }
611 ph->write_pid_history = calloc(tf->io_plots, sizeof(struct pid_plot_history *));
612 if (!ph->write_pid_history) {
613 perror("memory allocation failed");
614 exit(1);
615 }
616 ph->pid_history_count = tf->io_plots;
617 for (i = 0; i < tf->io_plots; i++) {
618 if (tf->gdd_reads[i])
619 ph->read_pid_history[i] = alloc_pid_plot_history(tf->gdd_reads[i]->color);
620 if (tf->gdd_writes[i])
621 ph->write_pid_history[i] = alloc_pid_plot_history(tf->gdd_writes[i]->color);
622 }
623 return ph;
624 }
625
626 LIST_HEAD(movie_history);
627 int num_histories = 0;
628
free_plot_history(struct plot_history * ph)629 static void free_plot_history(struct plot_history *ph)
630 {
631 int pid;
632
633 for (pid = 0; pid < ph->pid_history_count; pid++) {
634 if (ph->read_pid_history[pid])
635 free(ph->read_pid_history[pid]);
636 if (ph->write_pid_history[pid])
637 free(ph->write_pid_history[pid]);
638 }
639 free(ph->read_pid_history);
640 free(ph->write_pid_history);
641 free(ph);
642 }
643
add_history(struct plot_history * ph,struct list_head * list)644 static void add_history(struct plot_history *ph, struct list_head *list)
645 {
646 struct plot_history *entry;
647
648 list_add_tail(&ph->list, list);
649 num_histories++;
650
651 if (num_histories > 12) {
652 num_histories--;
653 entry = list_entry(list->next, struct plot_history, list);
654 list_del(&entry->list);
655 free_plot_history(entry);
656 }
657 }
658
plot_movie_history(struct plot * plot,struct list_head * list)659 static void plot_movie_history(struct plot *plot, struct list_head *list)
660 {
661 struct plot_history *ph;
662 int pid;
663
664 if (num_histories > 2)
665 rewind_spindle_steps(num_histories - 1);
666
667 list_for_each_entry(ph, list, list) {
668 for (pid = 0; pid < ph->pid_history_count; pid++) {
669 if (ph->read_pid_history[pid]) {
670 if (movie_style == MOVIE_SPINDLE) {
671 svg_io_graph_movie_array_spindle(plot,
672 ph->read_pid_history[pid]);
673 } else {
674 svg_io_graph_movie_array(plot,
675 ph->read_pid_history[pid]);
676 }
677 }
678 if (ph->write_pid_history[pid]) {
679 if (movie_style == MOVIE_SPINDLE) {
680 svg_io_graph_movie_array_spindle(plot,
681 ph->write_pid_history[pid]);
682 } else {
683 svg_io_graph_movie_array(plot,
684 ph->write_pid_history[pid]);
685 }
686 }
687 }
688 }
689 }
690
free_all_plot_history(struct list_head * head)691 static void free_all_plot_history(struct list_head *head)
692 {
693 struct plot_history *entry;
694
695 while (!list_empty(head)) {
696 entry = list_entry(head->next, struct plot_history, list);
697 list_del(&entry->list);
698 free_plot_history(entry);
699 }
700 }
701
count_io_plot_types(void)702 static int count_io_plot_types(void)
703 {
704 struct trace_file *tf;
705 int i;
706 int total_io_types = 0;
707
708 list_for_each_entry(tf, &all_traces, list) {
709 for (i = 0; i < tf->io_plots; i++) {
710 if (tf->gdd_reads[i])
711 total_io_types++;
712 if (tf->gdd_writes[i])
713 total_io_types++;
714 }
715 }
716 return total_io_types;
717 }
718
plot_io_legend(struct plot * plot,struct graph_dot_data * gdd,char * prefix,char * rw)719 static void plot_io_legend(struct plot *plot, struct graph_dot_data *gdd, char *prefix, char *rw)
720 {
721 int ret = 0;
722 char *label = NULL;
723 if (io_per_process)
724 ret = asprintf(&label, "%s %s", prefix, gdd->label);
725 else
726 ret = asprintf(&label, "%s", prefix);
727 if (ret < 0) {
728 perror("Failed to process labels");
729 exit(1);
730 }
731 svg_add_legend(plot, label, rw, gdd->color);
732 free(label);
733 }
734
plot_io(struct plot * plot,unsigned int min_seconds,unsigned int max_seconds,u64 min_offset,u64 max_offset)735 static void plot_io(struct plot *plot, unsigned int min_seconds,
736 unsigned int max_seconds, u64 min_offset, u64 max_offset)
737 {
738 struct trace_file *tf;
739 int i;
740
741 if (active_graphs[IO_GRAPH_INDEX] == 0)
742 return;
743
744 setup_axis(plot);
745
746 svg_alloc_legend(plot, count_io_plot_types() * 2);
747
748 set_plot_label(plot, "Device IO");
749 set_ylabel(plot, "Offset (MB)");
750 set_yticks(plot, num_yticks, min_offset / (1024 * 1024),
751 max_offset / (1024 * 1024), "");
752 set_xticks(plot, num_xticks, min_seconds, max_seconds);
753
754 list_for_each_entry(tf, &all_traces, list) {
755 char *prefix = tf->label ? tf->label : "";
756
757 for (i = 0; i < tf->io_plots; i++) {
758 if (tf->gdd_writes[i]) {
759 svg_io_graph(plot, tf->gdd_writes[i]);
760 plot_io_legend(plot, tf->gdd_writes[i], prefix, " Writes");
761 }
762 if (tf->gdd_reads[i]) {
763 svg_io_graph(plot, tf->gdd_reads[i]);
764 plot_io_legend(plot, tf->gdd_reads[i], prefix, " Reads");
765 }
766 }
767 }
768 if (plot->add_xlabel)
769 set_xlabel(plot, "Time (seconds)");
770 svg_write_legend(plot);
771 close_plot(plot);
772 }
773
plot_tput(struct plot * plot,unsigned int min_seconds,unsigned int max_seconds,int with_legend)774 static void plot_tput(struct plot *plot, unsigned int min_seconds,
775 unsigned int max_seconds, int with_legend)
776 {
777 struct trace_file *tf;
778 char *units;
779 char line[128];
780 u64 max = 0, val;
781
782 if (active_graphs[TPUT_GRAPH_INDEX] == 0)
783 return;
784
785 if (with_legend)
786 svg_alloc_legend(plot, num_traces * 2);
787
788 list_for_each_entry(tf, &all_traces, list) {
789 val = line_graph_roll_avg_max(tf->tput_writes_gld);
790 if (val > max)
791 max = val;
792 val = line_graph_roll_avg_max(tf->tput_reads_gld);
793 if (val > max)
794 max = val;
795 }
796 list_for_each_entry(tf, &all_traces, list) {
797 if (tf->tput_writes_gld->max > 0)
798 tf->tput_writes_gld->max = max;
799 if (tf->tput_reads_gld->max > 0)
800 tf->tput_reads_gld->max = max;
801 }
802
803 setup_axis(plot);
804 set_plot_label(plot, "Throughput");
805
806 tf = list_entry(all_traces.next, struct trace_file, list);
807
808 scale_line_graph_bytes(&max, &units, 1024);
809 sprintf(line, "%sB/s", units);
810 set_ylabel(plot, line);
811 set_yticks(plot, num_yticks, 0, max, "");
812 set_xticks(plot, num_xticks, min_seconds, max_seconds);
813
814 list_for_each_entry(tf, &all_traces, list) {
815 if (tf->tput_writes_gld->max > 0) {
816 svg_line_graph(plot, tf->tput_writes_gld, tf->writes_color, 0, 0);
817 if (with_legend)
818 svg_add_legend(plot, tf->label, " Writes", tf->writes_color);
819 }
820 if (tf->tput_reads_gld->max > 0) {
821 svg_line_graph(plot, tf->tput_reads_gld, tf->reads_color, 0, 0);
822 if (with_legend)
823 svg_add_legend(plot, tf->label, " Reads", tf->reads_color);
824 }
825 }
826
827 if (plot->add_xlabel)
828 set_xlabel(plot, "Time (seconds)");
829
830 if (with_legend)
831 svg_write_legend(plot);
832
833 close_plot(plot);
834 total_graphs_written++;
835 }
836
plot_fio_tput(struct plot * plot,unsigned int min_seconds,unsigned int max_seconds)837 static void plot_fio_tput(struct plot *plot,
838 unsigned int min_seconds, unsigned int max_seconds)
839 {
840 struct trace_file *tf;
841 char *units;
842 char line[128];
843 u64 max = 0, val;
844
845 if (num_fio_traces == 0 || active_graphs[FIO_GRAPH_INDEX] == 0)
846 return;
847
848 if (num_fio_traces > 1)
849 svg_alloc_legend(plot, num_fio_traces);
850
851 list_for_each_entry(tf, &fio_traces, list) {
852 val = line_graph_roll_avg_max(tf->fio_gld);
853 if (val > max)
854 max = val;
855 }
856
857 list_for_each_entry(tf, &fio_traces, list) {
858 if (tf->fio_gld->max > 0)
859 tf->fio_gld->max = max;
860 }
861
862 setup_axis(plot);
863 set_plot_label(plot, "Fio Throughput");
864
865 tf = list_entry(all_traces.next, struct trace_file, list);
866
867 scale_line_graph_bytes(&max, &units, 1024);
868 sprintf(line, "%sB/s", units);
869 set_ylabel(plot, line);
870 set_yticks(plot, num_yticks, 0, max, "");
871
872 set_xticks(plot, num_xticks, min_seconds, max_seconds);
873 list_for_each_entry(tf, &fio_traces, list) {
874 if (tf->fio_gld->max > 0) {
875 svg_line_graph(plot, tf->fio_gld, tf->line_color, 0, 0);
876 if (num_fio_traces > 1)
877 svg_add_legend(plot, tf->label, "", tf->line_color);
878 }
879 }
880
881 if (plot->add_xlabel)
882 set_xlabel(plot, "Time (seconds)");
883
884 if (num_fio_traces > 1)
885 svg_write_legend(plot);
886 close_plot(plot);
887 total_graphs_written++;
888 }
889
plot_cpu(struct plot * plot,unsigned int max_seconds,char * label,int active_index,int gld_index)890 static void plot_cpu(struct plot *plot, unsigned int max_seconds, char *label,
891 int active_index, int gld_index)
892 {
893 struct trace_file *tf;
894 int max = 0;
895 int i;
896 unsigned int gld_i;
897 char *color;
898 double avg = 0;
899 int ymax;
900 int plotted = 0;
901
902 if (active_graphs[active_index] == 0)
903 return;
904
905 list_for_each_entry(tf, &all_traces, list) {
906 if (tf->trace->mpstat_num_cpus > max)
907 max = tf->trace->mpstat_num_cpus;
908 }
909 if (max == 0)
910 return;
911
912 tf = list_entry(all_traces.next, struct trace_file, list);
913
914 ymax = tf->mpstat_gld[gld_index]->max;
915 if (ymax == 0)
916 return;
917
918 svg_alloc_legend(plot, num_traces * max);
919
920 setup_axis(plot);
921 set_plot_label(plot, label);
922
923 max_seconds = tf->mpstat_max_seconds;
924
925 set_yticks(plot, num_yticks, 0, tf->mpstat_gld[gld_index]->max, "");
926 set_ylabel(plot, "Percent");
927 set_xticks(plot, num_xticks, tf->mpstat_min_seconds, max_seconds);
928
929 reset_cpu_color();
930 list_for_each_entry(tf, &all_traces, list) {
931 if (tf->mpstat_gld == 0)
932 break;
933 for (gld_i = tf->mpstat_gld[0]->min_seconds;
934 gld_i < tf->mpstat_gld[0]->stop_seconds; gld_i++) {
935 if (tf->mpstat_gld[gld_index]->data[gld_i].count) {
936 avg += (tf->mpstat_gld[gld_index]->data[gld_i].sum /
937 tf->mpstat_gld[gld_index]->data[gld_i].count);
938 }
939 }
940 avg /= tf->mpstat_gld[gld_index]->stop_seconds -
941 tf->mpstat_gld[gld_index]->min_seconds;
942 color = pick_cpu_color();
943 svg_line_graph(plot, tf->mpstat_gld[0], color, 0, 0);
944 svg_add_legend(plot, tf->label, " avg", color);
945
946 for (i = 1; i < tf->trace->mpstat_num_cpus + 1; i++) {
947 struct graph_line_data *gld = tf->mpstat_gld[i * MPSTAT_GRAPHS + gld_index];
948 double this_avg = 0;
949
950 for (gld_i = gld->min_seconds;
951 gld_i < gld->stop_seconds; gld_i++) {
952 if (gld->data[i].count) {
953 this_avg += gld->data[i].sum /
954 gld->data[i].count;
955 }
956 }
957
958 this_avg /= gld->stop_seconds - gld->min_seconds;
959
960 for (gld_i = gld->min_seconds;
961 gld_i < gld->stop_seconds; gld_i++) {
962 double val;
963
964 if (gld->data[gld_i].count == 0)
965 continue;
966 val = (double)gld->data[gld_i].sum /
967 gld->data[gld_i].count;
968
969 if (this_avg > avg + 30 || val > 95) {
970 color = pick_cpu_color();
971 svg_line_graph(plot, gld, color, avg + 30, 95);
972 snprintf(line, line_len, " CPU %d\n", i - 1);
973 svg_add_legend(plot, tf->label, line, color);
974 plotted++;
975 break;
976 }
977
978 }
979 }
980 }
981
982 if (plot->add_xlabel)
983 set_xlabel(plot, "Time (seconds)");
984
985 if (!plot->no_legend) {
986 svg_write_legend(plot);
987 svg_free_legend(plot);
988 }
989 close_plot(plot);
990 total_graphs_written++;
991 }
992
plot_queue_depth(struct plot * plot,unsigned int min_seconds,unsigned int max_seconds)993 static void plot_queue_depth(struct plot *plot, unsigned int min_seconds,
994 unsigned int max_seconds)
995 {
996 struct trace_file *tf;
997 u64 max = 0, val;
998
999 if (active_graphs[QUEUE_DEPTH_GRAPH_INDEX] == 0)
1000 return;
1001
1002 setup_axis(plot);
1003 set_plot_label(plot, "Queue Depth");
1004 if (num_traces > 1)
1005 svg_alloc_legend(plot, num_traces);
1006
1007 list_for_each_entry(tf, &all_traces, list) {
1008 val = line_graph_roll_avg_max(tf->queue_depth_gld);
1009 if (val > max)
1010 max = val;
1011 }
1012
1013 list_for_each_entry(tf, &all_traces, list)
1014 tf->queue_depth_gld->max = max;
1015
1016 set_ylabel(plot, "Pending IO");
1017 set_yticks(plot, num_yticks, 0, max, "");
1018 set_xticks(plot, num_xticks, min_seconds, max_seconds);
1019
1020 list_for_each_entry(tf, &all_traces, list) {
1021 svg_line_graph(plot, tf->queue_depth_gld, tf->line_color, 0, 0);
1022 if (num_traces > 1)
1023 svg_add_legend(plot, tf->label, "", tf->line_color);
1024 }
1025
1026 if (plot->add_xlabel)
1027 set_xlabel(plot, "Time (seconds)");
1028 if (num_traces > 1)
1029 svg_write_legend(plot);
1030 close_plot(plot);
1031 total_graphs_written++;
1032 }
1033
system_check(const char * cmd)1034 static void system_check(const char *cmd)
1035 {
1036 if (system(cmd) < 0) {
1037 int err = errno;
1038
1039 fprintf(stderr, "system exec failed (%d): %s\n", err, cmd);
1040 exit(1);
1041 }
1042 }
1043
convert_movie_files(char * movie_dir)1044 static void convert_movie_files(char *movie_dir)
1045 {
1046 fprintf(stderr, "Converting svg files in %s\n", movie_dir);
1047 snprintf(line, line_len, "find %s -name \\*.svg | xargs -I{} -n 1 -P 8 rsvg-convert -o {}.png {}",
1048 movie_dir);
1049 system_check(line);
1050 }
1051
mencode_movie(char * movie_dir)1052 static void mencode_movie(char *movie_dir)
1053 {
1054 fprintf(stderr, "Creating movie %s with ffmpeg\n", movie_dir);
1055 snprintf(line, line_len, "ffmpeg -r 20 -y -i %s/%%10d-%s.svg.png -b:v 250k "
1056 "-vcodec %s %s", movie_dir, output_filename, ffmpeg_codec,
1057 output_filename);
1058 system_check(line);
1059 }
1060
tencode_movie(char * movie_dir)1061 static void tencode_movie(char *movie_dir)
1062 {
1063 fprintf(stderr, "Creating movie %s with png2theora\n", movie_dir);
1064 snprintf(line, line_len, "png2theora -o %s %s/%%010d-%s.svg.png",
1065 output_filename, movie_dir, output_filename);
1066 system_check(line);
1067 }
1068
encode_movie(char * movie_dir)1069 static void encode_movie(char *movie_dir)
1070 {
1071 char *last_dot = strrchr(output_filename, '.');
1072
1073 if (last_dot &&
1074 (!strncmp(last_dot, ".ogg", 4) || !strncmp(last_dot, ".ogv", 4))) {
1075 tencode_movie(movie_dir);
1076 } else
1077 mencode_movie(movie_dir);
1078 }
1079
cleanup_movie(char * movie_dir)1080 static void cleanup_movie(char *movie_dir)
1081 {
1082 if (keep_movie_svgs) {
1083 fprintf(stderr, "Keeping movie dir %s\n", movie_dir);
1084 return;
1085 }
1086 fprintf(stderr, "Removing movie dir %s\n", movie_dir);
1087 snprintf(line, line_len, "rm %s/*", movie_dir);
1088 system_check(line);
1089
1090 snprintf(line, line_len, "rmdir %s", movie_dir);
1091 system_check(line);
1092 }
1093
plot_io_movie(struct plot * plot)1094 static void plot_io_movie(struct plot *plot)
1095 {
1096 struct trace_file *tf;
1097 int i, pid;
1098 struct plot_history *history;
1099 int batch_i;
1100 int movie_len = 30;
1101 int movie_frames_per_sec = 20;
1102 int total_frames = movie_len * movie_frames_per_sec;
1103 int rows, cols;
1104 int batch_count;
1105 int graph_width_factor = 5;
1106 int orig_y_offset;
1107 char movie_dir[] = "io-movie-XXXXXX";
1108
1109 if (mkdtemp(movie_dir) == NULL) {
1110 perror("Unable to create temp directory for movie files");
1111 exit(1);
1112 }
1113
1114 get_graph_size(&cols, &rows);
1115 batch_count = cols / total_frames;
1116
1117 if (batch_count == 0)
1118 batch_count = 1;
1119
1120 list_for_each_entry(tf, &all_traces, list) {
1121 char *prefix = tf->label ? tf->label : "";
1122
1123 i = 0;
1124 while (i < cols) {
1125 snprintf(line, line_len, "%s/%010d-%s.svg", movie_dir, i, output_filename);
1126 set_plot_output(plot, line);
1127 set_plot_title(plot, graph_title);
1128 orig_y_offset = plot->start_y_offset;
1129
1130 plot->no_legend = 1;
1131
1132 set_graph_size(cols / graph_width_factor, rows / 8);
1133 plot->timeline = i / graph_width_factor;
1134
1135 plot_tput(plot, tf->min_seconds, tf->max_seconds, 0);
1136
1137 plot_cpu(plot, tf->max_seconds,
1138 "CPU System Time", CPU_SYS_GRAPH_INDEX, MPSTAT_SYS);
1139
1140 plot->direction = PLOT_ACROSS;
1141 plot_queue_depth(plot, tf->min_seconds, tf->max_seconds);
1142
1143 /* movie graph starts here */
1144 plot->start_y_offset = orig_y_offset;
1145 set_graph_size(cols - cols / graph_width_factor, rows);
1146 plot->no_legend = 0;
1147 plot->timeline = 0;
1148 plot->direction = PLOT_DOWN;;
1149
1150 if (movie_style == MOVIE_SPINDLE)
1151 setup_axis_spindle(plot);
1152 else
1153 setup_axis(plot);
1154
1155 svg_alloc_legend(plot, count_io_plot_types() * 2);
1156
1157 history = alloc_plot_history(tf);
1158 history->col = i;
1159
1160 for (pid = 0; pid < tf->io_plots; pid++) {
1161 if (tf->gdd_reads[pid])
1162 plot_io_legend(plot, tf->gdd_reads[pid], prefix, " Reads");
1163 if (tf->gdd_writes[pid])
1164 plot_io_legend(plot, tf->gdd_writes[pid], prefix, " Writes");
1165 }
1166
1167 batch_i = 0;
1168 while (i < cols && batch_i < batch_count) {
1169 for (pid = 0; pid < tf->io_plots; pid++) {
1170 if (tf->gdd_reads[pid]) {
1171 svg_io_graph_movie(tf->gdd_reads[pid],
1172 history->read_pid_history[pid],
1173 i);
1174 }
1175 if (tf->gdd_writes[pid]) {
1176 svg_io_graph_movie(tf->gdd_writes[pid],
1177 history->write_pid_history[pid],
1178 i);
1179 }
1180 }
1181 i++;
1182 batch_i++;
1183 }
1184
1185 add_history(history, &movie_history);
1186
1187 plot_movie_history(plot, &movie_history);
1188
1189 svg_write_legend(plot);
1190 close_plot(plot);
1191 close_plot(plot);
1192
1193 close_plot_file(plot);
1194 }
1195 free_all_plot_history(&movie_history);
1196 }
1197 convert_movie_files(movie_dir);
1198 encode_movie(movie_dir);
1199 cleanup_movie(movie_dir);
1200 }
1201
plot_latency(struct plot * plot,unsigned int min_seconds,unsigned int max_seconds)1202 static void plot_latency(struct plot *plot, unsigned int min_seconds,
1203 unsigned int max_seconds)
1204 {
1205 struct trace_file *tf;
1206 char *units;
1207 char line[128];
1208 u64 max = 0, val;
1209
1210 if (active_graphs[LATENCY_GRAPH_INDEX] == 0)
1211 return;
1212
1213 if (num_traces > 1)
1214 svg_alloc_legend(plot, num_traces);
1215
1216 list_for_each_entry(tf, &all_traces, list) {
1217 val = line_graph_roll_avg_max(tf->latency_gld);
1218 if (val > max)
1219 max = val;
1220 }
1221
1222 list_for_each_entry(tf, &all_traces, list)
1223 tf->latency_gld->max = max;
1224
1225 setup_axis(plot);
1226 set_plot_label(plot, "IO Latency");
1227
1228 tf = list_entry(all_traces.next, struct trace_file, list);
1229
1230 scale_line_graph_time(&max, &units);
1231 sprintf(line, "latency (%ss)", units);
1232 set_ylabel(plot, line);
1233 set_yticks(plot, num_yticks, 0, max, "");
1234 set_xticks(plot, num_xticks, min_seconds, max_seconds);
1235
1236 list_for_each_entry(tf, &all_traces, list) {
1237 svg_line_graph(plot, tf->latency_gld, tf->line_color, 0, 0);
1238 if (num_traces > 1)
1239 svg_add_legend(plot, tf->label, "", tf->line_color);
1240 }
1241
1242 if (plot->add_xlabel)
1243 set_xlabel(plot, "Time (seconds)");
1244 if (num_traces > 1)
1245 svg_write_legend(plot);
1246 close_plot(plot);
1247 total_graphs_written++;
1248 }
1249
plot_iops(struct plot * plot,unsigned int min_seconds,unsigned int max_seconds)1250 static void plot_iops(struct plot *plot, unsigned int min_seconds,
1251 unsigned int max_seconds)
1252 {
1253 struct trace_file *tf;
1254 char *units;
1255 u64 max = 0, val;
1256
1257 if (active_graphs[IOPS_GRAPH_INDEX] == 0)
1258 return;
1259
1260 list_for_each_entry(tf, &all_traces, list) {
1261 val = line_graph_roll_avg_max(tf->iop_gld);
1262 if (val > max)
1263 max = val;
1264 }
1265
1266 list_for_each_entry(tf, &all_traces, list)
1267 tf->iop_gld->max = max;
1268
1269 setup_axis(plot);
1270 set_plot_label(plot, "IOPs");
1271 if (num_traces > 1)
1272 svg_alloc_legend(plot, num_traces);
1273
1274 tf = list_entry(all_traces.next, struct trace_file, list);
1275
1276 scale_line_graph_bytes(&max, &units, 1000);
1277 set_ylabel(plot, "IO/s");
1278
1279 set_yticks(plot, num_yticks, 0, max, units);
1280 set_xticks(plot, num_xticks, min_seconds, max_seconds);
1281
1282 list_for_each_entry(tf, &all_traces, list) {
1283 svg_line_graph(plot, tf->iop_gld, tf->line_color, 0, 0);
1284 if (num_traces > 1)
1285 svg_add_legend(plot, tf->label, "", tf->line_color);
1286 }
1287
1288 if (plot->add_xlabel)
1289 set_xlabel(plot, "Time (seconds)");
1290 if (num_traces > 1)
1291 svg_write_legend(plot);
1292
1293 close_plot(plot);
1294 total_graphs_written++;
1295 }
1296
check_plot_columns(struct plot * plot,int index)1297 static void check_plot_columns(struct plot *plot, int index)
1298 {
1299 int count;
1300
1301 if (columns > 1 && (total_graphs_written == 0 ||
1302 total_graphs_written % columns != 0)) {
1303 count = graphs_left(index);
1304 if (plot->direction == PLOT_DOWN) {
1305 plot->start_x_offset = 0;
1306 if (count <= columns)
1307 plot->add_xlabel = 1;
1308 }
1309 plot->direction = PLOT_ACROSS;
1310
1311 } else {
1312 plot->direction = PLOT_DOWN;
1313 if (index == last_active_graph)
1314 plot->add_xlabel = 1;
1315 }
1316
1317 }
1318
1319 enum {
1320 HELP_LONG_OPT = 1,
1321 };
1322
1323 char *option_string = "+F:T:t:o:l:r:O:N:d:D:pm::h:w:c:x:y:a:C:PK";
1324 static struct option long_options[] = {
1325 {"columns", required_argument, 0, 'c'},
1326 {"fio-trace", required_argument, 0, 'F'},
1327 {"title", required_argument, 0, 'T'},
1328 {"trace", required_argument, 0, 't'},
1329 {"output", required_argument, 0, 'o'},
1330 {"label", required_argument, 0, 'l'},
1331 {"rolling", required_argument, 0, 'r'},
1332 {"no-graph", required_argument, 0, 'N'},
1333 {"only-graph", required_argument, 0, 'O'},
1334 {"device", required_argument, 0, 'd'},
1335 {"blktrace-destination", required_argument, 0, 'D'},
1336 {"prog", no_argument, 0, 'p'},
1337 {"movie", optional_argument, 0, 'm'},
1338 {"codec", optional_argument, 0, 'C'},
1339 {"keep-movie-svgs", no_argument, 0, 'K'},
1340 {"width", required_argument, 0, 'w'},
1341 {"height", required_argument, 0, 'h'},
1342 {"xzoom", required_argument, 0, 'x'},
1343 {"yzoom", required_argument, 0, 'y'},
1344 {"io-plot-action", required_argument, 0, 'a'},
1345 {"per-process-io", no_argument, 0, 'P'},
1346 {"help", no_argument, 0, HELP_LONG_OPT},
1347 {0, 0, 0, 0}
1348 };
1349
print_usage(void)1350 static void print_usage(void)
1351 {
1352 fprintf(stderr, "iowatcher usage:\n"
1353 "\t-d (--device): device for blktrace to trace\n"
1354 "\t-D (--blktrace-destination): destination for blktrace\n"
1355 "\t-t (--trace): trace file name (more than one allowed)\n"
1356 "\t-F (--fio-trace): fio bandwidth trace (more than one allowed)\n"
1357 "\t-l (--label): trace label in the graph\n"
1358 "\t-o (--output): output file name for the SVG image or video\n"
1359 "\t-p (--prog): run a program while blktrace is run\n"
1360 "\t-K (--keep-movie-svgs keep svgs generated for movie mode\n"
1361 "\t-m (--movie [=spindle|rect]): create IO animations\n"
1362 "\t-C (--codec): ffmpeg codec. Use ffmpeg -codecs to list\n"
1363 "\t-r (--rolling): number of seconds in the rolling averge\n"
1364 "\t-T (--title): graph title\n"
1365 "\t-N (--no-graph): skip a single graph (io, tput, latency, queue-depth, \n"
1366 "\t\t\tiops, cpu-sys, cpu-io, cpu-irq cpu-soft cpu-user)\n"
1367 "\t-O (--only-graph): add a single graph to the output\n"
1368 "\t-h (--height): set the height of each graph\n"
1369 "\t-w (--width): set the width of each graph\n"
1370 "\t-c (--columns): numbers of columns in graph output\n"
1371 "\t-x (--xzoom): limit processed time to min:max\n"
1372 "\t-y (--yzoom): limit processed sectors to min:max\n"
1373 "\t-a (--io-plot-action): plot given action (one of Q,D,C) in IO graph\n"
1374 "\t-P (--per-process-io): distinguish between processes in IO graph\n"
1375 );
1376 exit(1);
1377 }
1378
parse_double_range(char * str,double * min,double * max)1379 static int parse_double_range(char *str, double *min, double *max)
1380 {
1381 char *end;
1382
1383 /* Empty lower bound - leave original value */
1384 if (str[0] != ':') {
1385 *min = strtod(str, &end);
1386 if (*min == HUGE_VAL || *min == -HUGE_VAL)
1387 return -ERANGE;
1388 if (*end != ':')
1389 return -EINVAL;
1390 } else
1391 end = str;
1392 /* Empty upper bound - leave original value */
1393 if (end[1]) {
1394 *max = strtod(end+1, &end);
1395 if (*max == HUGE_VAL || *max == -HUGE_VAL)
1396 return -ERANGE;
1397 if (*end != 0)
1398 return -EINVAL;
1399 }
1400 if (*min > *max)
1401 return -EINVAL;
1402 return 0;
1403 }
1404
parse_ull_range(char * str,unsigned long long * min,unsigned long long * max)1405 static int parse_ull_range(char *str, unsigned long long *min,
1406 unsigned long long *max)
1407 {
1408 char *end;
1409
1410 /* Empty lower bound - leave original value */
1411 if (str[0] != ':') {
1412 *min = strtoull(str, &end, 10);
1413 if (*min == ULLONG_MAX && errno == ERANGE)
1414 return -ERANGE;
1415 if (*end != ':')
1416 return -EINVAL;
1417 } else
1418 end = str;
1419 /* Empty upper bound - leave original value */
1420 if (end[1]) {
1421 *max = strtoull(end+1, &end, 10);
1422 if (*max == ULLONG_MAX && errno == ERANGE)
1423 return -ERANGE;
1424 if (*end != 0)
1425 return -EINVAL;
1426 }
1427 if (*min > *max)
1428 return -EINVAL;
1429 return 0;
1430 }
1431
parse_options(int ac,char ** av)1432 static int parse_options(int ac, char **av)
1433 {
1434 int c;
1435 int disabled = 0;
1436 int p_flagged = 0;
1437
1438 while (1) {
1439 int option_index = 0;
1440
1441 c = getopt_long(ac, av, option_string,
1442 long_options, &option_index);
1443
1444 if (c == -1)
1445 break;
1446
1447 switch(c) {
1448 case 'T':
1449 graph_title = strdup(optarg);
1450 break;
1451 case 't':
1452 add_trace_file(optarg);
1453 set_blktrace_outfile(optarg);
1454 break;
1455 case 'F':
1456 add_fio_trace_file(optarg);
1457 break;
1458 case 'o':
1459 output_filename = strdup(optarg);
1460 break;
1461 case 'l':
1462 set_trace_label(optarg);
1463 break;
1464 case 'r':
1465 set_rolling_avg(atoi(optarg));
1466 break;
1467 case 'O':
1468 if (!disabled) {
1469 disable_all_graphs();
1470 disabled = 1;
1471 }
1472 enable_one_graph(optarg);
1473 break;
1474 case 'N':
1475 disable_one_graph(optarg);
1476 break;
1477 case 'd':
1478 if (num_blktrace_devices == MAX_DEVICES_PER_TRACE - 1) {
1479 fprintf(stderr, "Too many blktrace devices provided\n");
1480 exit(1);
1481 }
1482 blktrace_devices[num_blktrace_devices++] = strdup(optarg);
1483 break;
1484 case 'D':
1485 blktrace_dest_dir = strdup(optarg);
1486 if (!strcmp(blktrace_dest_dir, "")) {
1487 fprintf(stderr, "Need a directory\n");
1488 print_usage();
1489 }
1490 break;
1491 case 'p':
1492 p_flagged = 1;
1493 break;
1494 case 'K':
1495 keep_movie_svgs = 1;
1496 break;
1497 case 'm':
1498 make_movie = 1;
1499 if (optarg) {
1500 movie_style = lookup_movie_style(optarg);
1501 if (movie_style < 0) {
1502 fprintf(stderr, "Unknown movie style %s\n", optarg);
1503 print_usage();
1504 }
1505 }
1506 fprintf(stderr, "Using movie style: %s\n",
1507 movie_styles[movie_style]);
1508 break;
1509 case 'C':
1510 ffmpeg_codec = strdup(optarg);
1511 break;
1512 case 'h':
1513 opt_graph_height = atoi(optarg);
1514 break;
1515 case 'w':
1516 opt_graph_width = atoi(optarg);
1517 break;
1518 case 'c':
1519 columns = atoi(optarg);
1520 break;
1521 case 'x':
1522 if (parse_double_range(optarg, &min_time, &max_time)
1523 < 0) {
1524 fprintf(stderr, "Cannot parse time range %s\n",
1525 optarg);
1526 exit(1);
1527 }
1528 break;
1529 case 'y':
1530 if (parse_ull_range(optarg, &min_mb, &max_mb)
1531 < 0) {
1532 fprintf(stderr,
1533 "Cannot parse offset range %s\n",
1534 optarg);
1535 exit(1);
1536 }
1537 if (max_mb > ULLONG_MAX >> 20) {
1538 fprintf(stderr,
1539 "Upper range limit too big."
1540 " Maximum is %llu.\n", ULLONG_MAX >> 20);
1541 exit(1);
1542 }
1543 break;
1544 case 'a':
1545 if (strlen(optarg) != 1) {
1546 action_err:
1547 fprintf(stderr, "Action must be one of Q, D, C.");
1548 exit(1);
1549 }
1550 plot_io_action = action_char_to_num(optarg[0]);
1551 if (plot_io_action < 0)
1552 goto action_err;
1553 break;
1554 case 'P':
1555 io_per_process = 1;
1556 break;
1557 case '?':
1558 case HELP_LONG_OPT:
1559 print_usage();
1560 break;
1561 default:
1562 break;
1563 }
1564 }
1565
1566 if (optind < ac && p_flagged) {
1567 prog_argv = &av[optind];
1568 prog_argc = ac - optind;
1569 } else if (p_flagged) {
1570 fprintf(stderr, "--prog or -p given but no program specified\n");
1571 exit(1);
1572 } else if (optind < ac) {
1573 fprintf(stderr, "Extra arguments '%s'... (and --prog not specified)\n", av[optind]);
1574 exit(1);
1575 }
1576
1577 return 0;
1578 }
1579
dest_mkdir(char * dir)1580 static void dest_mkdir(char *dir)
1581 {
1582 int ret;
1583
1584 ret = mkdir(dir, 0777);
1585 if (ret && errno != EEXIST) {
1586 fprintf(stderr, "failed to mkdir error %s\n", strerror(errno));
1587 exit(errno);
1588 }
1589 }
1590
main(int ac,char ** av)1591 int main(int ac, char **av)
1592 {
1593 struct plot *plot;
1594 unsigned int min_seconds = 0;
1595 unsigned int max_seconds = 0;
1596 u64 max_offset = 0;
1597 u64 min_offset = ~(u64)0;
1598 struct trace_file *tf;
1599 int ret;
1600 int rows, cols;
1601
1602 init_io_hash_table();
1603 init_process_hash_table();
1604
1605 enable_all_graphs();
1606
1607 parse_options(ac, av);
1608
1609 last_active_graph = last_graph();
1610 if (make_movie) {
1611 set_io_graph_scale(256);
1612 if (movie_style == MOVIE_SPINDLE)
1613 set_graph_size(750, 550);
1614 else
1615 set_graph_size(700, 400);
1616
1617 /*
1618 * the plots in the movie don't have a seconds
1619 * line yet, this makes us skip it
1620 */
1621 last_active_graph = TOTAL_GRAPHS + 1;
1622 }
1623 if (opt_graph_height)
1624 set_graph_height(opt_graph_height);
1625
1626 if (opt_graph_width)
1627 set_graph_width(opt_graph_width);
1628
1629 if (list_empty(&all_traces) && list_empty(&fio_traces)) {
1630 fprintf(stderr, "No traces found, exiting\n");
1631 exit(1);
1632 }
1633
1634 if (num_blktrace_devices) {
1635 char *path = join_path(blktrace_dest_dir, blktrace_outfile);
1636 dest_mkdir(blktrace_dest_dir);
1637 dest_mkdir(path);
1638
1639 snprintf(line, line_len, "%s.dump", path);
1640 unlink(line);
1641
1642 ret = start_blktrace(blktrace_devices, num_blktrace_devices,
1643 blktrace_outfile, blktrace_dest_dir);
1644 if (ret) {
1645 perror("Exiting due to blktrace failure");
1646 exit(ret);
1647 }
1648
1649 snprintf(line, line_len, "%s.mpstat", path);
1650 ret = start_mpstat(line);
1651 if (ret) {
1652 perror("Exiting due to mpstat failure");
1653 exit(ret);
1654 }
1655
1656 if (prog_argv && prog_argc) {
1657 run_program(prog_argc, prog_argv, 1, NULL, NULL);
1658 wait_for_tracers(SIGINT);
1659 } else {
1660 printf("Tracing until interrupted...\n");
1661 wait_for_tracers(0);
1662 }
1663 free(path);
1664 }
1665
1666 /* step one, read all the traces */
1667 read_traces();
1668
1669 /* step two, find the maxes for time and offset */
1670 list_for_each_entry(tf, &all_traces, list)
1671 compare_minmax_tf(tf, &max_seconds, &min_offset, &max_offset);
1672 list_for_each_entry(tf, &fio_traces, list)
1673 compare_minmax_tf(tf, &max_seconds, &min_offset, &max_offset);
1674 min_seconds = min_time;
1675 if (max_seconds > max_time)
1676 max_seconds = ceil(max_time);
1677 if (min_offset < min_mb << 20)
1678 min_offset = min_mb << 20;
1679 if (max_offset > max_mb << 20)
1680 max_offset = max_mb << 20;
1681
1682 /* push the max we found into all the tfs */
1683 set_all_minmax_tf(min_seconds, max_seconds, min_offset, max_offset);
1684
1685 /* alloc graphing structs for all the traces */
1686 setup_trace_file_graphs();
1687
1688 /* run through all the traces and read their events */
1689 read_trace_events();
1690
1691 pick_line_graph_color();
1692
1693 plot = alloc_plot();
1694
1695 if (make_movie) {
1696 set_legend_width(longest_label + longest_proc_name + 1 + strlen("writes"));
1697 plot_io_movie(plot);
1698 exit(0);
1699 }
1700
1701 set_plot_output(plot, output_filename);
1702
1703 if (active_graphs[IO_GRAPH_INDEX] || found_mpstat)
1704 set_legend_width(longest_label + longest_proc_name + 1 + strlen("writes"));
1705 else if (num_traces >= 1 || num_fio_traces >= 1)
1706 set_legend_width(longest_label);
1707 else
1708 set_legend_width(0);
1709
1710 get_graph_size(&cols, &rows);
1711 if (columns > 1)
1712 plot->add_xlabel = 1;
1713 set_plot_title(plot, graph_title);
1714
1715 check_plot_columns(plot, IO_GRAPH_INDEX);
1716 plot_io(plot, min_seconds, max_seconds, min_offset, max_offset);
1717 plot->add_xlabel = 0;
1718
1719 if (columns > 1) {
1720 set_graph_size(cols / columns, rows);
1721 num_xticks /= columns;
1722 if (num_xticks < 2)
1723 num_xticks = 2;
1724 }
1725 if (rows <= 50)
1726 num_yticks--;
1727
1728 check_plot_columns(plot, TPUT_GRAPH_INDEX);
1729 plot_tput(plot, min_seconds, max_seconds, 1);
1730
1731 check_plot_columns(plot, FIO_GRAPH_INDEX);
1732 plot_fio_tput(plot, min_seconds, max_seconds);
1733
1734 check_plot_columns(plot, CPU_IO_GRAPH_INDEX);
1735 plot_cpu(plot, max_seconds, "CPU IO Wait Time",
1736 CPU_IO_GRAPH_INDEX, MPSTAT_IO);
1737
1738 check_plot_columns(plot, CPU_SYS_GRAPH_INDEX);
1739 plot_cpu(plot, max_seconds, "CPU System Time",
1740 CPU_SYS_GRAPH_INDEX, MPSTAT_SYS);
1741
1742 check_plot_columns(plot, CPU_IRQ_GRAPH_INDEX);
1743 plot_cpu(plot, max_seconds, "CPU IRQ Time",
1744 CPU_IRQ_GRAPH_INDEX, MPSTAT_IRQ);
1745
1746 check_plot_columns(plot, CPU_SOFT_GRAPH_INDEX);
1747 plot_cpu(plot, max_seconds, "CPU SoftIRQ Time",
1748 CPU_SOFT_GRAPH_INDEX, MPSTAT_SOFT);
1749
1750 check_plot_columns(plot, CPU_USER_GRAPH_INDEX);
1751 plot_cpu(plot, max_seconds, "CPU User Time",
1752 CPU_USER_GRAPH_INDEX, MPSTAT_USER);
1753
1754 check_plot_columns(plot, LATENCY_GRAPH_INDEX);
1755 plot_latency(plot, min_seconds, max_seconds);
1756
1757 check_plot_columns(plot, QUEUE_DEPTH_GRAPH_INDEX);
1758 plot_queue_depth(plot, min_seconds, max_seconds);
1759
1760 check_plot_columns(plot, IOPS_GRAPH_INDEX);
1761 plot_iops(plot, min_seconds, max_seconds);
1762
1763 /* once for all */
1764 close_plot(plot);
1765 close_plot_file(plot);
1766 return 0;
1767 }
1768