2 * Copyright (C) 2012 Fusion-io
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.
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.
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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
17 * Parts of this file were imported from Jens Axboe's blktrace sources (also GPL)
19 #include <sys/types.h>
28 #include <asm/types.h>
44 LIST_HEAD(all_traces);
45 LIST_HEAD(fio_traces);
47 static char line[1024];
48 static int line_len = 1024;
49 static int found_mpstat = 0;
50 static int make_movie = 0;
51 static int keep_movie_svgs = 0;
52 static int opt_graph_width = 0;
53 static int opt_graph_height = 0;
55 static int columns = 1;
56 static int num_xticks = 7;
57 static int num_yticks = 4;
59 static double min_time = 0;
60 static double max_time = DBL_MAX;
61 static unsigned long long min_mb = 0;
62 static unsigned long long max_mb = ULLONG_MAX >> 20;
64 int plot_io_action = 0;
65 int io_per_process = 0;
66 unsigned int longest_proc_name = 0;
69 * this doesn't include the IO graph,
70 * but it counts the other graphs as they go out
72 static int total_graphs_written = 1;
84 QUEUE_DEPTH_GRAPH_INDEX,
98 static char *graphs_by_name[] = {
118 char *movie_styles[] = {
124 static int movie_style = 0;
126 static int lookup_movie_style(char *str)
130 for (i = 0; i < NUM_MOVIE_STYLES; i++) {
131 if (strcmp(str, movie_styles[i]) == 0)
137 static int active_graphs[TOTAL_GRAPHS];
138 static int last_active_graph = IOPS_GRAPH_INDEX;
140 static int label_index = 0;
141 static int num_traces = 0;
142 static int num_fio_traces = 0;
143 static int longest_label = 0;
145 static char *graph_title = "";
146 static char *output_filename = "trace.svg";
147 static char *blktrace_devices[MAX_DEVICES_PER_TRACE];
148 static int num_blktrace_devices = 0;
149 static char *blktrace_outfile = "trace";
150 static char *blktrace_dest_dir = ".";
151 static char *program_to_run = NULL;
152 static char *ffmpeg_codec = "libx264";
154 static void alloc_mpstat_gld(struct trace_file *tf)
156 struct graph_line_data **ptr;
158 if (tf->trace->mpstat_num_cpus == 0)
161 ptr = calloc((tf->trace->mpstat_num_cpus + 1) * MPSTAT_GRAPHS,
162 sizeof(struct graph_line_data *));
164 perror("Unable to allocate mpstat arrays\n");
167 tf->mpstat_gld = ptr;
170 static void enable_all_graphs(void)
173 for (i = 0; i < TOTAL_GRAPHS; i++)
174 active_graphs[i] = 1;
177 static void disable_all_graphs(void)
180 for (i = 0; i < TOTAL_GRAPHS; i++)
181 active_graphs[i] = 0;
184 static int enable_one_graph(char *name)
187 for (i = 0; i < TOTAL_GRAPHS; i++) {
188 if (strcmp(name, graphs_by_name[i]) == 0) {
189 active_graphs[i] = 1;
196 static int disable_one_graph(char *name)
199 for (i = 0; i < TOTAL_GRAPHS; i++) {
200 if (strcmp(name, graphs_by_name[i]) == 0) {
201 active_graphs[i] = 0;
208 static int last_graph(void)
211 for (i = TOTAL_GRAPHS - 1; i >= 0; i--) {
212 if (active_graphs[i]) {
219 static int graphs_left(int cur)
223 for (i = cur; i < TOTAL_GRAPHS; i++) {
224 if (active_graphs[i])
230 static char * join_path(char *dest_dir, char *filename)
232 /* alloc 2 extra bytes for '/' and '\0' */
233 char *path = malloc(strlen(dest_dir) + strlen(filename) + 2);
234 sprintf(path, "%s%s%s", dest_dir, "/", filename);
239 static void add_trace_file(char *filename)
241 struct trace_file *tf;
243 tf = calloc(1, sizeof(*tf));
245 fprintf(stderr, "Unable to allocate memory\n");
249 tf->filename = strdup(filename);
250 list_add_tail(&tf->list, &all_traces);
251 tf->line_color = "black";
255 static void add_fio_trace_file(char *filename)
257 struct trace_file *tf;
259 tf = calloc(1, sizeof(*tf));
261 fprintf(stderr, "Unable to allocate memory\n");
265 tf->filename = strdup(filename);
266 list_add_tail(&tf->list, &fio_traces);
267 tf->line_color = pick_fio_color();
272 static void setup_trace_file_graphs(void)
274 struct trace_file *tf;
283 list_for_each_entry(tf, &all_traces, list) {
284 tf->tput_reads_gld = alloc_line_data(tf->min_seconds, tf->max_seconds, tf->stop_seconds);
285 tf->tput_writes_gld = alloc_line_data(tf->min_seconds, tf->max_seconds, tf->stop_seconds);
286 tf->latency_gld = alloc_line_data(tf->min_seconds, tf->max_seconds, tf->stop_seconds);
287 tf->queue_depth_gld = alloc_line_data(tf->min_seconds, tf->max_seconds, tf->stop_seconds);
289 tf->iop_gld = alloc_line_data(tf->min_seconds, tf->max_seconds, tf->stop_seconds);
290 tf->gdd_writes = calloc(alloc_ptrs, sizeof(struct graph_dot_data));
291 tf->gdd_reads = calloc(alloc_ptrs, sizeof(struct graph_dot_data));
292 tf->io_plots_allocated = alloc_ptrs;
294 if (tf->trace->mpstat_num_cpus == 0)
297 alloc_mpstat_gld(tf);
298 for (i = 0; i < (tf->trace->mpstat_num_cpus + 1) * MPSTAT_GRAPHS; i++) {
300 alloc_line_data(tf->mpstat_min_seconds,
301 tf->mpstat_max_seconds,
302 tf->mpstat_max_seconds);
303 tf->mpstat_gld[i]->max = 100;
307 list_for_each_entry(tf, &fio_traces, list) {
308 if (tf->trace->fio_seconds > 0) {
309 tf->fio_gld = alloc_line_data(tf->min_seconds,
317 static void read_traces(void)
319 struct trace_file *tf;
328 list_for_each_entry(tf, &all_traces, list) {
329 path = join_path(blktrace_dest_dir, tf->filename);
331 trace = open_trace(path);
335 last_time = find_last_time(trace);
337 tf->max_seconds = SECONDS(last_time) + 1;
338 tf->stop_seconds = SECONDS(last_time) + 1;
340 find_extreme_offsets(trace, &tf->min_offset, &tf->max_offset,
341 &max_bank, &max_bank_offset);
342 filter_outliers(trace, tf->min_offset, tf->max_offset, &ymin, &ymax);
343 tf->min_offset = ymin;
344 tf->max_offset = ymax;
346 read_mpstat(trace, path);
347 tf->mpstat_stop_seconds = trace->mpstat_seconds;
348 tf->mpstat_max_seconds = trace->mpstat_seconds;
349 if (tf->mpstat_max_seconds)
355 list_for_each_entry(tf, &fio_traces, list) {
356 trace = open_fio_trace(tf->filename);
360 tf->max_seconds = tf->trace->fio_seconds;
361 tf->stop_seconds = tf->trace->fio_seconds;
365 static void pick_line_graph_color(void)
367 struct trace_file *tf;
370 list_for_each_entry(tf, &all_traces, list) {
371 for (i = 0; i < tf->io_plots; i++) {
372 if (tf->gdd_reads[i]) {
373 tf->line_color = tf->gdd_reads[i]->color;
374 tf->reads_color = tf->gdd_reads[i]->color;
376 if (tf->gdd_writes[i]) {
377 tf->line_color = tf->gdd_writes[i]->color;
378 tf->writes_color = tf->gdd_writes[i]->color;
380 if (tf->writes_color && tf->reads_color)
383 if (!tf->reads_color)
384 tf->reads_color = tf->line_color;
385 if (!tf->writes_color)
386 tf->writes_color = tf->line_color;
390 static void read_fio_events(struct trace_file *tf)
397 first_fio(tf->trace);
399 ret = read_fio_event(tf->trace, &time, &bw, &dir);
404 add_fio_gld(time, bw, tf->fio_gld);
405 if (next_fio_line(tf->trace))
410 static void read_trace_events(void)
413 struct trace_file *tf;
418 double user, sys, iowait, irq, soft;
419 double max_user = 0, max_sys = 0, max_iowait = 0,
420 max_irq = 0, max_soft = 0;
422 list_for_each_entry(tf, &fio_traces, list)
425 list_for_each_entry(tf, &all_traces, list) {
431 add_tput(trace, tf->tput_writes_gld, tf->tput_reads_gld);
432 add_iop(trace, tf->iop_gld);
434 add_pending_io(trace, tf->queue_depth_gld);
435 add_completed_io(trace, tf->latency_gld);
436 ret = next_record(trace);
441 list_for_each_entry(tf, &all_traces, list) {
444 if (trace->mpstat_num_cpus == 0)
449 for (time = 0; time < tf->mpstat_stop_seconds; time ++) {
450 for (i = 0; i < (trace->mpstat_num_cpus + 1) * MPSTAT_GRAPHS; i += MPSTAT_GRAPHS) {
451 ret = read_mpstat_event(trace, &user, &sys,
452 &iowait, &irq, &soft);
455 if (next_mpstat_line(trace))
464 if (iowait > max_iowait)
467 add_mpstat_gld(time, sys, tf->mpstat_gld[i + MPSTAT_SYS]);
468 add_mpstat_gld(time, irq, tf->mpstat_gld[i + MPSTAT_IRQ]);
469 add_mpstat_gld(time, soft, tf->mpstat_gld[i + MPSTAT_SOFT]);
470 add_mpstat_gld(time, user, tf->mpstat_gld[i + MPSTAT_USER]);
471 add_mpstat_gld(time, iowait, tf->mpstat_gld[i + MPSTAT_IO]);
473 if (next_mpstat(trace) == NULL)
479 list_for_each_entry(tf, &all_traces, list) {
482 if (trace->mpstat_num_cpus == 0)
485 tf->mpstat_gld[MPSTAT_SYS]->max = max_sys;
486 tf->mpstat_gld[MPSTAT_IRQ]->max = max_irq;
487 tf->mpstat_gld[MPSTAT_SOFT]->max = max_soft;
488 tf->mpstat_gld[MPSTAT_USER]->max = max_user;
489 tf->mpstat_gld[MPSTAT_IO]->max = max_iowait;;
494 static void set_trace_label(char *label)
497 struct trace_file *tf;
498 int len = strlen(label);
500 if (len > longest_label)
503 list_for_each_entry(tf, &all_traces, list) {
504 if (cur == label_index) {
505 tf->label = strdup(label);
512 list_for_each_entry(tf, &fio_traces, list) {
513 if (cur == label_index) {
514 tf->label = strdup(label);
522 static void set_blktrace_outfile(char *arg)
524 char *s = strdup(arg);
525 char *last_dot = strrchr(s, '.');
528 if (strcmp(last_dot, ".dump") == 0)
531 blktrace_outfile = s;
535 static void compare_minmax_tf(struct trace_file *tf, int *max_seconds, u64 *min_offset, u64 *max_offset)
537 if (tf->max_seconds > *max_seconds)
538 *max_seconds = tf->max_seconds;
539 if (tf->max_offset > *max_offset)
540 *max_offset = tf->max_offset;
541 if (tf->min_offset < *min_offset)
542 *min_offset = tf->min_offset;
545 static void set_all_minmax_tf(int min_seconds, int max_seconds, u64 min_offset, u64 max_offset)
547 struct trace_file *tf;
548 struct list_head *traces = &all_traces;
550 list_for_each_entry(tf, traces, list) {
551 tf->min_seconds = min_seconds;
552 tf->max_seconds = max_seconds;
553 if (tf->stop_seconds > max_seconds)
554 tf->stop_seconds = max_seconds;
555 if (tf->mpstat_max_seconds) {
556 tf->mpstat_min_seconds = min_seconds;
557 tf->mpstat_max_seconds = max_seconds;
558 if (tf->mpstat_stop_seconds > max_seconds)
559 tf->mpstat_stop_seconds = max_seconds;
561 tf->min_offset = min_offset;
562 tf->max_offset = max_offset;
564 if (traces == &all_traces) {
565 traces = &fio_traces;
570 static char *create_movie_temp_dir(void)
573 char *pattern = strdup("io-movie-XXXXXX");;
575 ret = mkdtemp(pattern);
577 perror("Unable to create temp directory for movie files");
583 static struct pid_plot_history *alloc_pid_plot_history(char *color)
585 struct pid_plot_history *pph;
587 pph = calloc(1, sizeof(struct pid_plot_history));
589 perror("memory allocation failed");
592 pph->history = malloc(sizeof(double) * 4096);
594 perror("memory allocation failed");
597 pph->history_len = 4096;
603 static struct plot_history *alloc_plot_history(struct trace_file *tf)
605 struct plot_history *ph = calloc(1, sizeof(struct plot_history));
609 perror("memory allocation failed");
612 ph->read_pid_history = calloc(tf->io_plots, sizeof(struct pid_plot_history *));
613 if (!ph->read_pid_history) {
614 perror("memory allocation failed");
617 ph->write_pid_history = calloc(tf->io_plots, sizeof(struct pid_plot_history *));
618 if (!ph->write_pid_history) {
619 perror("memory allocation failed");
622 ph->pid_history_count = tf->io_plots;
623 for (i = 0; i < tf->io_plots; i++) {
624 if (tf->gdd_reads[i])
625 ph->read_pid_history[i] = alloc_pid_plot_history(tf->gdd_reads[i]->color);
626 if (tf->gdd_writes[i])
627 ph->write_pid_history[i] = alloc_pid_plot_history(tf->gdd_writes[i]->color);
632 LIST_HEAD(movie_history);
633 int num_histories = 0;
635 static void free_plot_history(struct plot_history *ph)
639 for (pid = 0; pid < ph->pid_history_count; pid++) {
640 if (ph->read_pid_history[pid])
641 free(ph->read_pid_history[pid]);
642 if (ph->write_pid_history[pid])
643 free(ph->write_pid_history[pid]);
645 free(ph->read_pid_history);
646 free(ph->write_pid_history);
650 static void add_history(struct plot_history *ph, struct list_head *list)
652 struct plot_history *entry;
654 list_add_tail(&ph->list, list);
657 if (num_histories > 12) {
659 entry = list_entry(list->next, struct plot_history, list);
660 list_del(&entry->list);
661 free_plot_history(entry);
665 static void plot_movie_history(struct plot *plot, struct list_head *list)
667 struct plot_history *ph;
670 if (num_histories > 2)
671 rewind_spindle_steps(num_histories - 1);
673 list_for_each_entry(ph, list, list) {
674 for (pid = 0; pid < ph->pid_history_count; pid++) {
675 if (ph->read_pid_history[pid]) {
676 if (movie_style == MOVIE_SPINDLE) {
677 svg_io_graph_movie_array_spindle(plot,
678 ph->read_pid_history[pid]);
680 svg_io_graph_movie_array(plot,
681 ph->read_pid_history[pid]);
684 if (ph->write_pid_history[pid]) {
685 if (movie_style == MOVIE_SPINDLE) {
686 svg_io_graph_movie_array_spindle(plot,
687 ph->write_pid_history[pid]);
689 svg_io_graph_movie_array(plot,
690 ph->write_pid_history[pid]);
697 static void free_all_plot_history(struct list_head *head)
699 struct plot_history *entry;
701 while (!list_empty(head)) {
702 entry = list_entry(head->next, struct plot_history, list);
703 list_del(&entry->list);
704 free_plot_history(entry);
708 static int count_io_plot_types(void)
710 struct trace_file *tf;
712 int total_io_types = 0;
714 list_for_each_entry(tf, &all_traces, list) {
715 for (i = 0; i < tf->io_plots; i++) {
716 if (tf->gdd_reads[i])
718 if (tf->gdd_writes[i])
722 return total_io_types;
725 static void plot_io(struct plot *plot, int min_seconds, int max_seconds, u64 min_offset, u64 max_offset)
727 struct trace_file *tf;
730 if (active_graphs[IO_GRAPH_INDEX] == 0)
735 svg_alloc_legend(plot, count_io_plot_types() * 2);
737 set_plot_label(plot, "Device IO");
738 set_ylabel(plot, "Offset (MB)");
739 set_yticks(plot, num_yticks, min_offset / (1024 * 1024),
740 max_offset / (1024 * 1024), "");
741 set_xticks(plot, num_xticks, min_seconds, max_seconds);
743 list_for_each_entry(tf, &all_traces, list) {
750 strcpy(label, tf->label);
754 pos = label + strlen(label);
756 for (i = 0; i < tf->io_plots; i++) {
757 if (tf->gdd_writes[i]) {
758 svg_io_graph(plot, tf->gdd_writes[i]);
760 strcpy(pos, tf->gdd_writes[i]->label);
761 svg_add_legend(plot, label, " Writes", tf->gdd_writes[i]->color);
763 if (tf->gdd_reads[i]) {
764 svg_io_graph(plot, tf->gdd_reads[i]);
766 strcpy(pos, tf->gdd_reads[i]->label);
767 svg_add_legend(plot, label, " Reads", tf->gdd_reads[i]->color);
772 if (plot->add_xlabel)
773 set_xlabel(plot, "Time (seconds)");
774 svg_write_legend(plot);
778 static void plot_tput(struct plot *plot, int min_seconds, int max_seconds)
780 struct trace_file *tf;
785 if (active_graphs[TPUT_GRAPH_INDEX] == 0)
788 svg_alloc_legend(plot, num_traces * 2);
790 list_for_each_entry(tf, &all_traces, list) {
791 if (tf->tput_writes_gld->max > max)
792 max = tf->tput_writes_gld->max;
793 if (tf->tput_reads_gld->max > max)
794 max = tf->tput_reads_gld->max;
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;
804 set_plot_label(plot, "Throughput");
806 tf = list_entry(all_traces.next, struct trace_file, list);
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);
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 svg_add_legend(plot, tf->label, "Writes", tf->writes_color);
819 if (tf->tput_reads_gld->max > 0) {
820 svg_line_graph(plot, tf->tput_reads_gld, tf->reads_color, 0, 0);
821 svg_add_legend(plot, tf->label, "Reads", tf->reads_color);
825 if (plot->add_xlabel)
826 set_xlabel(plot, "Time (seconds)");
828 svg_write_legend(plot);
830 total_graphs_written++;
833 static void plot_fio_tput(struct plot *plot, int min_seconds, int max_seconds)
835 struct trace_file *tf;
840 if (num_fio_traces == 0 || active_graphs[FIO_GRAPH_INDEX] == 0)
843 if (num_fio_traces > 1)
844 svg_alloc_legend(plot, num_fio_traces);
846 list_for_each_entry(tf, &fio_traces, list) {
847 if (tf->fio_gld->max > max)
848 max = tf->fio_gld->max;
851 list_for_each_entry(tf, &fio_traces, list) {
852 if (tf->fio_gld->max > 0)
853 tf->fio_gld->max = max;
857 set_plot_label(plot, "Fio Throughput");
859 tf = list_entry(all_traces.next, struct trace_file, list);
861 scale_line_graph_bytes(&max, &units, 1024);
862 sprintf(line, "%sB/s", units);
863 set_ylabel(plot, line);
864 set_yticks(plot, num_yticks, 0, max, "");
866 set_xticks(plot, num_xticks, min_seconds, max_seconds);
867 list_for_each_entry(tf, &fio_traces, list) {
868 if (tf->fio_gld->max > 0) {
869 svg_line_graph(plot, tf->fio_gld, tf->line_color, 0, 0);
870 if (num_fio_traces > 1)
871 svg_add_legend(plot, tf->label, "", tf->line_color);
875 if (plot->add_xlabel)
876 set_xlabel(plot, "Time (seconds)");
878 if (num_fio_traces > 1)
879 svg_write_legend(plot);
881 total_graphs_written++;
884 static void plot_cpu(struct plot *plot, int max_seconds, char *label,
885 int active_index, int gld_index)
887 struct trace_file *tf;
896 if (active_graphs[active_index] == 0)
899 list_for_each_entry(tf, &all_traces, list) {
900 if (tf->trace->mpstat_num_cpus > max)
901 max = tf->trace->mpstat_num_cpus;
906 tf = list_entry(all_traces.next, struct trace_file, list);
908 ymax = tf->mpstat_gld[gld_index]->max;
912 svg_alloc_legend(plot, num_traces * max);
915 set_plot_label(plot, label);
917 max_seconds = tf->mpstat_max_seconds;
919 set_yticks(plot, num_yticks, 0, tf->mpstat_gld[gld_index]->max, "");
920 set_ylabel(plot, "Percent");
921 set_xticks(plot, num_xticks, tf->mpstat_min_seconds, max_seconds);
924 list_for_each_entry(tf, &all_traces, list) {
925 if (tf->mpstat_gld == 0)
927 for (i = tf->mpstat_gld[0]->min_seconds;
928 i < tf->mpstat_gld[0]->stop_seconds; i++) {
929 if (tf->mpstat_gld[gld_index]->data[i].count) {
930 avg += (tf->mpstat_gld[gld_index]->data[i].sum /
931 tf->mpstat_gld[gld_index]->data[i].count);
934 avg /= tf->mpstat_gld[gld_index]->stop_seconds -
935 tf->mpstat_gld[gld_index]->min_seconds;
936 color = pick_cpu_color();
937 svg_line_graph(plot, tf->mpstat_gld[0], color, 0, 0);
938 svg_add_legend(plot, tf->label, " avg", color);
940 for (i = 1; i < tf->trace->mpstat_num_cpus + 1; i++) {
941 struct graph_line_data *gld = tf->mpstat_gld[i * MPSTAT_GRAPHS + gld_index];
944 for (gld_i = gld->min_seconds;
945 gld_i < gld->stop_seconds; gld_i++) {
946 if (gld->data[i].count) {
947 this_avg += gld->data[i].sum /
952 this_avg /= gld->stop_seconds - gld->min_seconds;
954 for (gld_i = gld->min_seconds;
955 gld_i < gld->stop_seconds; gld_i++) {
958 if (gld->data[gld_i].count == 0)
960 val = (double)gld->data[gld_i].sum /
961 gld->data[gld_i].count;
963 if (this_avg > avg + 30 || val > 95) {
964 color = pick_cpu_color();
965 svg_line_graph(plot, gld, color, avg + 30, 95);
966 snprintf(line, line_len, " CPU %d\n", i - 1);
967 svg_add_legend(plot, tf->label, line, color);
976 if (plot->add_xlabel)
977 set_xlabel(plot, "Time (seconds)");
979 if (!plot->no_legend) {
980 svg_write_legend(plot);
981 svg_free_legend(plot);
984 total_graphs_written++;
987 static void plot_queue_depth(struct plot *plot, int min_seconds, int max_seconds)
989 struct trace_file *tf;
991 if (active_graphs[QUEUE_DEPTH_GRAPH_INDEX] == 0)
995 set_plot_label(plot, "Queue Depth");
997 svg_alloc_legend(plot, num_traces);
999 tf = list_entry(all_traces.next, struct trace_file, list);
1000 set_ylabel(plot, "Pending IO");
1001 set_yticks(plot, num_yticks, 0, tf->queue_depth_gld->max, "");
1002 set_xticks(plot, num_xticks, min_seconds, max_seconds);
1004 list_for_each_entry(tf, &all_traces, list) {
1005 svg_line_graph(plot, tf->queue_depth_gld, tf->line_color, 0, 0);
1007 svg_add_legend(plot, tf->label, "", tf->line_color);
1010 if (plot->add_xlabel)
1011 set_xlabel(plot, "Time (seconds)");
1013 svg_write_legend(plot);
1015 total_graphs_written++;
1018 static void convert_movie_files(char *movie_dir)
1020 fprintf(stderr, "Converting svg files in %s\n", movie_dir);
1021 snprintf(line, line_len, "find %s -name \\*.svg | xargs -I{} -n 1 -P 8 rsvg-convert -o {}.png {}",
1026 static void mencode_movie(char *movie_dir)
1028 fprintf(stderr, "Creating movie %s with ffmpeg\n", movie_dir);
1029 snprintf(line, line_len, "ffmpeg -r 20 -y -i %s/%%10d-%s.svg.png -b:v 250k "
1030 "-vcodec %s %s", movie_dir, output_filename, ffmpeg_codec,
1035 static void tencode_movie(char *movie_dir)
1037 fprintf(stderr, "Creating movie %s with png2theora\n", movie_dir);
1038 snprintf(line, line_len, "png2theora -o %s %s/%%010d-%s.svg.png",
1039 output_filename, movie_dir, output_filename);
1043 static void encode_movie(char *movie_dir)
1045 char *last_dot = strrchr(output_filename, '.');
1048 (!strncmp(last_dot, ".ogg", 4) || !strncmp(last_dot, ".ogv", 4))) {
1049 tencode_movie(movie_dir);
1051 mencode_movie(movie_dir);
1054 static void cleanup_movie(char *movie_dir)
1056 if (keep_movie_svgs) {
1057 fprintf(stderr, "Keeping movie dir %s\n", movie_dir);
1060 fprintf(stderr, "Removing movie dir %s\n", movie_dir);
1061 snprintf(line, line_len, "rm %s/*", movie_dir);
1064 snprintf(line, line_len, "rmdir %s", movie_dir);
1068 static void plot_io_movie(struct plot *plot)
1070 struct trace_file *tf;
1071 char *movie_dir = create_movie_temp_dir();
1073 struct plot_history *history;
1076 int movie_frames_per_sec = 20;
1077 int total_frames = movie_len * movie_frames_per_sec;
1080 int graph_width_factor = 5;
1083 get_graph_size(&cols, &rows);
1084 batch_count = cols / total_frames;
1086 if (batch_count == 0)
1089 list_for_each_entry(tf, &all_traces, list) {
1096 strcpy(label, tf->label);
1100 pos = label + strlen(label);
1104 snprintf(line, line_len, "%s/%010d-%s.svg", movie_dir, i, output_filename);
1105 set_plot_output(plot, line);
1106 set_plot_title(plot, graph_title);
1107 orig_y_offset = plot->start_y_offset;
1109 plot->no_legend = 1;
1111 set_graph_size(cols / graph_width_factor, rows / 8);
1112 plot->timeline = i / graph_width_factor;
1114 plot_tput(plot, tf->min_seconds,
1117 plot_cpu(plot, tf->max_seconds,
1118 "CPU System Time", CPU_SYS_GRAPH_INDEX, MPSTAT_SYS);
1120 plot->direction = PLOT_ACROSS;
1121 plot_queue_depth(plot, tf->min_seconds, tf->max_seconds);
1123 /* movie graph starts here */
1124 plot->start_y_offset = orig_y_offset;
1125 set_graph_size(cols - cols / graph_width_factor, rows);
1126 plot->no_legend = 0;
1128 plot->direction = PLOT_DOWN;;
1130 if (movie_style == MOVIE_SPINDLE)
1131 setup_axis_spindle(plot);
1135 svg_alloc_legend(plot, count_io_plot_types() * 2);
1137 history = alloc_plot_history(tf);
1140 for (pid = 0; pid < tf->io_plots; pid++) {
1141 if (tf->gdd_reads[pid]) {
1143 strcpy(pos, tf->gdd_reads[pid]->label);
1144 svg_add_legend(plot, label, " Reads", tf->gdd_reads[pid]->color);
1146 if (tf->gdd_writes[pid]) {
1148 strcpy(pos, tf->gdd_writes[pid]->label);
1149 svg_add_legend(plot, label, " Writes", tf->gdd_writes[pid]->color);
1154 while (i < cols && batch_i < batch_count) {
1155 for (pid = 0; pid < tf->io_plots; pid++) {
1156 if (tf->gdd_reads[pid]) {
1157 svg_io_graph_movie(tf->gdd_reads[pid],
1158 history->read_pid_history[pid],
1161 if (tf->gdd_writes[pid]) {
1162 svg_io_graph_movie(tf->gdd_writes[pid],
1163 history->write_pid_history[pid],
1171 add_history(history, &movie_history);
1173 plot_movie_history(plot, &movie_history);
1175 svg_write_legend(plot);
1179 close_plot_file(plot);
1181 free_all_plot_history(&movie_history);
1183 convert_movie_files(movie_dir);
1184 encode_movie(movie_dir);
1185 cleanup_movie(movie_dir);
1189 static void plot_latency(struct plot *plot, int min_seconds, int max_seconds)
1191 struct trace_file *tf;
1196 if (active_graphs[LATENCY_GRAPH_INDEX] == 0)
1200 svg_alloc_legend(plot, num_traces);
1202 list_for_each_entry(tf, &all_traces, list) {
1203 if (tf->latency_gld->max > max)
1204 max = tf->latency_gld->max;
1207 list_for_each_entry(tf, &all_traces, list)
1208 tf->latency_gld->max = max;
1211 set_plot_label(plot, "IO Latency");
1213 tf = list_entry(all_traces.next, struct trace_file, list);
1215 scale_line_graph_time(&max, &units);
1216 sprintf(line, "latency (%ss)", units);
1217 set_ylabel(plot, line);
1218 set_yticks(plot, num_yticks, 0, max, "");
1219 set_xticks(plot, num_xticks, min_seconds, max_seconds);
1221 list_for_each_entry(tf, &all_traces, list) {
1222 svg_line_graph(plot, tf->latency_gld, tf->line_color, 0, 0);
1224 svg_add_legend(plot, tf->label, "", tf->line_color);
1227 if (plot->add_xlabel)
1228 set_xlabel(plot, "Time (seconds)");
1230 svg_write_legend(plot);
1232 total_graphs_written++;
1235 static void plot_iops(struct plot *plot, int min_seconds, int max_seconds)
1237 struct trace_file *tf;
1241 if (active_graphs[IOPS_GRAPH_INDEX] == 0)
1244 list_for_each_entry(tf, &all_traces, list) {
1245 if (tf->iop_gld->max > max)
1246 max = tf->iop_gld->max;
1249 list_for_each_entry(tf, &all_traces, list)
1250 tf->iop_gld->max = max;
1253 set_plot_label(plot, "IOPs");
1255 svg_alloc_legend(plot, num_traces);
1257 tf = list_entry(all_traces.next, struct trace_file, list);
1259 scale_line_graph_bytes(&max, &units, 1000);
1260 set_ylabel(plot, "IO/s");
1262 set_yticks(plot, num_yticks, 0, max, units);
1263 set_xticks(plot, num_xticks, min_seconds, max_seconds);
1265 list_for_each_entry(tf, &all_traces, list) {
1266 svg_line_graph(plot, tf->iop_gld, tf->line_color, 0, 0);
1268 svg_add_legend(plot, tf->label, "", tf->line_color);
1271 if (plot->add_xlabel)
1272 set_xlabel(plot, "Time (seconds)");
1274 svg_write_legend(plot);
1277 total_graphs_written++;
1280 static void check_plot_columns(struct plot *plot, int index)
1284 if (columns > 1 && (total_graphs_written == 0 ||
1285 total_graphs_written % columns != 0)) {
1286 count = graphs_left(index);
1287 if (plot->direction == PLOT_DOWN) {
1288 plot->start_x_offset = 0;
1289 if (count <= columns)
1290 plot->add_xlabel = 1;
1292 plot->direction = PLOT_ACROSS;
1295 plot->direction = PLOT_DOWN;
1296 if (index == last_active_graph)
1297 plot->add_xlabel = 1;
1306 char *option_string = "F:T:t:o:l:r:O:N:d:D:p:m::h:w:c:x:y:a:C:PK";
1307 static struct option long_options[] = {
1308 {"columns", required_argument, 0, 'c'},
1309 {"fio-trace", required_argument, 0, 'F'},
1310 {"title", required_argument, 0, 'T'},
1311 {"trace", required_argument, 0, 't'},
1312 {"output", required_argument, 0, 'o'},
1313 {"label", required_argument, 0, 'l'},
1314 {"rolling", required_argument, 0, 'r'},
1315 {"no-graph", required_argument, 0, 'N'},
1316 {"only-graph", required_argument, 0, 'O'},
1317 {"device", required_argument, 0, 'd'},
1318 {"blktrace-destination", required_argument, 0, 'D'},
1319 {"prog", required_argument, 0, 'p'},
1320 {"movie", optional_argument, 0, 'm'},
1321 {"codec", optional_argument, 0, 'C'},
1322 {"keep-movie-svgs", no_argument, 0, 'K'},
1323 {"width", required_argument, 0, 'w'},
1324 {"height", required_argument, 0, 'h'},
1325 {"xzoom", required_argument, 0, 'x'},
1326 {"yzoom", required_argument, 0, 'y'},
1327 {"io-plot-action", required_argument, 0, 'a'},
1328 {"per-process-io", no_argument, 0, 'P'},
1329 {"help", no_argument, 0, HELP_LONG_OPT},
1333 static void print_usage(void)
1335 fprintf(stderr, "iowatcher usage:\n"
1336 "\t-d (--device): device for blktrace to trace\n"
1337 "\t-D (--blktrace-destination): destination for blktrace\n"
1338 "\t-t (--trace): trace file name (more than one allowed)\n"
1339 "\t-F (--fio-trace): fio bandwidth trace (more than one allowed)\n"
1340 "\t-l (--label): trace label in the graph\n"
1341 "\t-o (--output): output file name (SVG only)\n"
1342 "\t-p (--prog): program to run while blktrace is run\n"
1343 "\t-K (--keep-movie-svgs keep svgs generated for movie mode\n"
1344 "\t-m (--movie [=spindle|rect]): create IO animations\n"
1345 "\t-C (--codec): ffmpeg codec. Use ffmpeg -codecs to list\n"
1346 "\t-r (--rolling): number of seconds in the rolling averge\n"
1347 "\t-T (--title): graph title\n"
1348 "\t-N (--no-graph): skip a single graph (io, tput, latency, queue_depth, \n"
1349 "\t\t\tiops, cpu-sys, cpu-io, cpu-irq cpu-soft cpu-user)\n"
1350 "\t-O (--only-graph): add a single graph to the output\n"
1351 "\t-h (--height): set the height of each graph\n"
1352 "\t-w (--width): set the width of each graph\n"
1353 "\t-c (--columns): numbers of columns in graph output\n"
1354 "\t-x (--xzoom): limit processed time to min:max\n"
1355 "\t-y (--yzoom): limit processed sectors to min:max\n"
1356 "\t-a (--io-plot-action): plot given action (one of Q,D,C) in IO graph\n"
1357 "\t-P (--per-process-io): distinguish between processes in IO graph\n"
1362 static int parse_double_range(char *str, double *min, double *max)
1366 /* Empty lower bound - leave original value */
1367 if (str[0] != ':') {
1368 *min = strtod(str, &end);
1369 if (*min == HUGE_VAL || *min == -HUGE_VAL)
1375 /* Empty upper bound - leave original value */
1377 *max = strtod(end+1, &end);
1378 if (*max == HUGE_VAL || *max == -HUGE_VAL)
1388 static int parse_ull_range(char *str, unsigned long long *min,
1389 unsigned long long *max)
1393 /* Empty lower bound - leave original value */
1394 if (str[0] != ':') {
1395 *min = strtoull(str, &end, 10);
1396 if (*min == ULLONG_MAX && errno == ERANGE)
1402 /* Empty upper bound - leave original value */
1404 *max = strtoull(end+1, &end, 10);
1405 if (*max == ULLONG_MAX && errno == ERANGE)
1415 static int parse_options(int ac, char **av)
1421 // int this_option_optind = optind ? optind : 1;
1422 int option_index = 0;
1424 c = getopt_long(ac, av, option_string,
1425 long_options, &option_index);
1432 graph_title = strdup(optarg);
1435 add_trace_file(optarg);
1436 set_blktrace_outfile(optarg);
1439 add_fio_trace_file(optarg);
1442 output_filename = strdup(optarg);
1445 set_trace_label(optarg);
1448 set_rolling_avg(atoi(optarg));
1452 disable_all_graphs();
1455 enable_one_graph(optarg);
1458 disable_one_graph(optarg);
1461 if (num_blktrace_devices == MAX_DEVICES_PER_TRACE - 1) {
1462 fprintf(stderr, "Too many blktrace devices provided\n");
1465 blktrace_devices[num_blktrace_devices++] = strdup(optarg);
1468 blktrace_dest_dir = strdup(optarg);
1469 if (!strcmp(blktrace_dest_dir, "")) {
1470 fprintf(stderr, "Need a directory\n");
1475 program_to_run = strdup(optarg);
1478 keep_movie_svgs = 1;
1483 movie_style = lookup_movie_style(optarg);
1484 if (movie_style < 0) {
1485 fprintf(stderr, "Unknown movie style %s\n", optarg);
1489 fprintf(stderr, "Using movie style: %s\n",
1490 movie_styles[movie_style]);
1493 ffmpeg_codec = strdup(optarg);
1496 opt_graph_height = atoi(optarg);
1499 opt_graph_width = atoi(optarg);
1502 columns = atoi(optarg);
1505 if (parse_double_range(optarg, &min_time, &max_time)
1507 fprintf(stderr, "Cannot parse time range %s\n",
1513 if (parse_ull_range(optarg, &min_mb, &max_mb)
1516 "Cannot parse offset range %s\n",
1520 if (max_mb > ULLONG_MAX >> 20) {
1522 "Upper range limit too big."
1523 " Maximum is %llu.\n", ULLONG_MAX >> 20);
1528 if (strlen(optarg) != 1) {
1530 fprintf(stderr, "Action must be one of Q, D, C.");
1533 plot_io_action = action_char_to_num(optarg[0]);
1534 if (plot_io_action < 0)
1551 static void dest_mkdir(char *dir)
1555 ret = mkdir(dir, 0777);
1556 if (ret && errno != EEXIST) {
1557 fprintf(stderr, "failed to mkdir error %s\n", strerror(errno));
1562 int main(int ac, char **av)
1565 int min_seconds = 0;
1566 int max_seconds = 0;
1568 u64 min_offset = ~(u64)0;
1569 struct trace_file *tf;
1573 init_io_hash_table();
1574 init_process_hash_table();
1576 enable_all_graphs();
1578 parse_options(ac, av);
1580 last_active_graph = last_graph();
1582 set_io_graph_scale(256);
1583 if (movie_style == MOVIE_SPINDLE)
1584 set_graph_size(750, 550);
1586 set_graph_size(700, 400);
1589 * the plots in the movie don't have a seconds
1590 * line yet, this makes us skip it
1592 last_active_graph = TOTAL_GRAPHS + 1;
1594 if (opt_graph_height)
1595 set_graph_height(opt_graph_height);
1597 if (opt_graph_width)
1598 set_graph_width(opt_graph_width);
1600 if (list_empty(&all_traces) && list_empty(&fio_traces)) {
1601 fprintf(stderr, "No traces found, exiting\n");
1605 if (num_blktrace_devices) {
1608 dest_mkdir(blktrace_dest_dir);
1609 if (num_blktrace_devices > 1) {
1610 snprintf(line, line_len, "%s/%s", blktrace_dest_dir,
1615 path = join_path(blktrace_dest_dir, blktrace_outfile);
1617 snprintf(line, line_len, "%s.dump", path);
1620 ret = start_blktrace(blktrace_devices, num_blktrace_devices,
1621 blktrace_outfile, blktrace_dest_dir);
1623 fprintf(stderr, "exiting due to blktrace failure\n");
1628 if (program_to_run) {
1629 ret = run_program(program_to_run);
1631 fprintf(stderr, "failed to run %s\n",
1637 /* no program specified, just wait for
1645 /* step one, read all the traces */
1648 /* step two, find the maxes for time and offset */
1649 list_for_each_entry(tf, &all_traces, list)
1650 compare_minmax_tf(tf, &max_seconds, &min_offset, &max_offset);
1651 list_for_each_entry(tf, &fio_traces, list)
1652 compare_minmax_tf(tf, &max_seconds, &min_offset, &max_offset);
1653 min_seconds = min_time;
1654 if (max_seconds > max_time)
1655 max_seconds = ceil(max_time);
1656 if (min_offset < min_mb << 20)
1657 min_offset = min_mb << 20;
1658 if (max_offset > max_mb << 20)
1659 max_offset = max_mb << 20;
1661 /* push the max we found into all the tfs */
1662 set_all_minmax_tf(min_seconds, max_seconds, min_offset, max_offset);
1664 /* alloc graphing structs for all the traces */
1665 setup_trace_file_graphs();
1667 /* run through all the traces and read their events */
1668 read_trace_events();
1670 pick_line_graph_color();
1672 plot = alloc_plot();
1675 set_legend_width(longest_label + longest_proc_name + 1 + strlen("writes"));
1676 plot_io_movie(plot);
1680 set_plot_output(plot, output_filename);
1682 if (active_graphs[IO_GRAPH_INDEX] || found_mpstat)
1683 set_legend_width(longest_label + longest_proc_name + 1 + strlen("writes"));
1684 else if (num_traces >= 1 || num_fio_traces >= 1)
1685 set_legend_width(longest_label);
1687 set_legend_width(0);
1689 get_graph_size(&cols, &rows);
1691 plot->add_xlabel = 1;
1692 set_plot_title(plot, graph_title);
1694 check_plot_columns(plot, IO_GRAPH_INDEX);
1695 plot_io(plot, min_seconds, max_seconds, min_offset, max_offset);
1696 plot->add_xlabel = 0;
1699 set_graph_size(cols / columns, rows);
1700 num_xticks /= columns;
1707 check_plot_columns(plot, TPUT_GRAPH_INDEX);
1708 plot_tput(plot, min_seconds, max_seconds);
1710 check_plot_columns(plot, FIO_GRAPH_INDEX);
1711 plot_fio_tput(plot, min_seconds, max_seconds);
1713 check_plot_columns(plot, CPU_IO_GRAPH_INDEX);
1714 plot_cpu(plot, max_seconds, "CPU IO Wait Time",
1715 CPU_IO_GRAPH_INDEX, MPSTAT_IO);
1717 check_plot_columns(plot, CPU_SYS_GRAPH_INDEX);
1718 plot_cpu(plot, max_seconds, "CPU System Time",
1719 CPU_SYS_GRAPH_INDEX, MPSTAT_SYS);
1721 check_plot_columns(plot, CPU_IRQ_GRAPH_INDEX);
1722 plot_cpu(plot, max_seconds, "CPU IRQ Time",
1723 CPU_IRQ_GRAPH_INDEX, MPSTAT_IRQ);
1725 check_plot_columns(plot, CPU_SOFT_GRAPH_INDEX);
1726 plot_cpu(plot, max_seconds, "CPU SoftIRQ Time",
1727 CPU_SOFT_GRAPH_INDEX, MPSTAT_SOFT);
1729 check_plot_columns(plot, CPU_USER_GRAPH_INDEX);
1730 plot_cpu(plot, max_seconds, "CPU User Time",
1731 CPU_USER_GRAPH_INDEX, MPSTAT_USER);
1733 check_plot_columns(plot, LATENCY_GRAPH_INDEX);
1734 plot_latency(plot, min_seconds, max_seconds);
1736 check_plot_columns(plot, QUEUE_DEPTH_GRAPH_INDEX);
1737 plot_queue_depth(plot, min_seconds, max_seconds);
1739 check_plot_columns(plot, IOPS_GRAPH_INDEX);
1740 plot_iops(plot, min_seconds, max_seconds);
1744 close_plot_file(plot);