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>
41 LIST_HEAD(all_traces);
43 static char line[1024];
44 static int line_len = 1024;
45 static int found_mpstat = 0;
46 static int cpu_color_index = 0;
47 static int color_index = 0;
48 static int make_movie = 0;
49 static int opt_graph_width = 0;
50 static int opt_graph_height = 0;
55 "orange", "darkviolet",
62 char *pick_color(void) {
63 char *ret = colors[color_index];
66 ret = colors[color_index];
72 char *pick_cpu_color(void) {
73 char *ret = colors[cpu_color_index];
76 ret = colors[cpu_color_index];
91 QUEUE_DEPTH_GRAPH_INDEX,
105 static char *graphs_by_name[] = {
124 char *movie_styles[] = {
130 static int movie_style = 0;
132 static int lookup_movie_style(char *str)
136 for (i = 0; i < NUM_MOVIE_STYLES; i++) {
137 if (strcmp(str, movie_styles[i]) == 0)
143 static int active_graphs[TOTAL_GRAPHS];
144 static int last_active_graph = IOPS_GRAPH_INDEX;
146 static int label_index = 0;
147 static int num_traces = 0;
148 static int longest_label = 0;
151 struct list_head list;
162 struct graph_line_data *tput_gld;
163 struct graph_line_data *iop_gld;
164 struct graph_line_data *latency_gld;
165 struct graph_line_data *queue_depth_gld;
166 struct graph_dot_data *gdd_writes;
167 struct graph_dot_data *gdd_reads;
170 int mpstat_stop_seconds;
171 struct graph_line_data **mpstat_gld;
174 static void alloc_mpstat_gld(struct trace_file *tf)
176 struct graph_line_data **ptr;
178 if (tf->trace->mpstat_num_cpus == 0)
181 ptr = calloc((tf->trace->mpstat_num_cpus + 1) * MPSTAT_GRAPHS,
182 sizeof(struct graph_line_data *));
184 perror("Unable to allocate mpstat arrays\n");
187 tf->mpstat_gld = ptr;
190 static void enable_all_graphs(void)
193 for (i = 0; i < TOTAL_GRAPHS; i++)
194 active_graphs[i] = 1;
197 static void disable_all_graphs(void)
200 for (i = 0; i < TOTAL_GRAPHS; i++)
201 active_graphs[i] = 0;
204 static int enable_one_graph(char *name)
207 for (i = 0; i < TOTAL_GRAPHS; i++) {
208 if (strcmp(name, graphs_by_name[i]) == 0) {
209 active_graphs[i] = 1;
216 static int disable_one_graph(char *name)
219 for (i = 0; i < TOTAL_GRAPHS; i++) {
220 if (strcmp(name, graphs_by_name[i]) == 0) {
221 active_graphs[i] = 0;
228 static int last_graph(void)
231 for (i = TOTAL_GRAPHS - 1; i >= 0; i--) {
232 if (active_graphs[i]) {
238 static void add_trace_file(char *filename)
240 struct trace_file *tf;
242 tf = calloc(1, sizeof(*tf));
244 fprintf(stderr, "Unable to allocate memory\n");
248 tf->filename = strdup(filename);
249 list_add_tail(&tf->list, &all_traces);
250 tf->read_color = pick_color();
251 tf->write_color = pick_color();
255 static void setup_trace_file_graphs(void)
257 struct trace_file *tf;
260 list_for_each_entry(tf, &all_traces, list) {
261 tf->tput_gld = alloc_line_data(tf->seconds, tf->stop_seconds);
262 tf->latency_gld = alloc_line_data(tf->seconds, tf->stop_seconds);
263 tf->queue_depth_gld = alloc_line_data(tf->seconds, tf->stop_seconds);
264 tf->iop_gld = alloc_line_data(tf->seconds, tf->stop_seconds);
265 tf->gdd_writes = alloc_dot_data(tf->seconds, tf->max_offset, tf->stop_seconds);
266 tf->gdd_reads = alloc_dot_data(tf->seconds, tf->max_offset, tf->stop_seconds);
268 if (tf->trace->mpstat_num_cpus == 0)
271 alloc_mpstat_gld(tf);
272 for (i = 0; i < (tf->trace->mpstat_num_cpus + 1) * MPSTAT_GRAPHS; i++) {
274 alloc_line_data(tf->mpstat_seconds,
276 tf->mpstat_gld[i]->max = 100;
281 static void read_traces(void)
283 struct trace_file *tf;
291 list_for_each_entry(tf, &all_traces, list) {
292 trace = open_trace(tf->filename);
296 last_time = find_last_time(trace);
298 tf->seconds = SECONDS(last_time);
299 tf->stop_seconds = SECONDS(last_time);
300 find_highest_offset(trace, &tf->max_offset, &max_bank,
302 filter_outliers(trace, tf->max_offset, &ymin, &ymax);
303 tf->max_offset = ymax;
305 read_mpstat(trace, tf->filename);
306 tf->mpstat_stop_seconds = trace->mpstat_seconds;
307 tf->mpstat_seconds = trace->mpstat_seconds;
308 if (tf->mpstat_seconds)
313 static void read_trace_events(void)
316 struct trace_file *tf;
321 double user, sys, iowait, irq, soft;
322 double max_user = 0, max_sys = 0, max_iowait = 0,
323 max_irq = 0, max_soft = 0;
325 list_for_each_entry(tf, &all_traces, list) {
330 add_tput(trace, tf->tput_gld);
331 add_iop(trace, tf->iop_gld);
332 add_io(trace, tf->gdd_writes, tf->gdd_reads);
333 add_pending_io(trace, tf->queue_depth_gld);
334 add_completed_io(trace, tf->latency_gld);
335 ret = next_record(trace);
340 list_for_each_entry(tf, &all_traces, list) {
343 if (trace->mpstat_num_cpus == 0)
348 for (time = 0; time < tf->mpstat_stop_seconds; time ++) {
349 for (i = 0; i < (trace->mpstat_num_cpus + 1) * MPSTAT_GRAPHS; i += MPSTAT_GRAPHS) {
350 ret = read_mpstat_event(trace, &user, &sys,
351 &iowait, &irq, &soft);
354 if (next_mpstat_line(trace))
363 if (iowait > max_iowait)
366 add_mpstat_gld(time, sys, tf->mpstat_gld[i + MPSTAT_SYS]);
367 add_mpstat_gld(time, irq, tf->mpstat_gld[i + MPSTAT_IRQ]);
368 add_mpstat_gld(time, soft, tf->mpstat_gld[i + MPSTAT_SOFT]);
369 add_mpstat_gld(time, user, tf->mpstat_gld[i + MPSTAT_USER]);
370 add_mpstat_gld(time, iowait, tf->mpstat_gld[i + MPSTAT_IO]);
372 if (next_mpstat(trace) == NULL)
378 list_for_each_entry(tf, &all_traces, list) {
381 if (trace->mpstat_num_cpus == 0)
384 tf->mpstat_gld[MPSTAT_SYS]->max = max_sys;
385 tf->mpstat_gld[MPSTAT_IRQ]->max = max_irq;
386 tf->mpstat_gld[MPSTAT_SOFT]->max = max_soft;
387 tf->mpstat_gld[MPSTAT_USER]->max = max_user;
388 tf->mpstat_gld[MPSTAT_IO]->max = max_iowait;;
393 static void set_trace_label(char *label)
396 struct trace_file *tf;
397 int len = strlen(label);
399 if (len > longest_label)
402 list_for_each_entry(tf, &all_traces, list) {
403 if (cur == label_index) {
404 tf->label = strdup(label);
412 static char *graph_title = "";
413 static char *output_filename = "trace.svg";
414 static char *blktrace_device = NULL;
415 static char *blktrace_outfile = "trace";
416 static char *blktrace_dest_dir = ".";
417 static char *program_to_run = NULL;
419 static void set_blktrace_outfile(char *arg)
421 char *s = strdup(arg);
422 char *last_dot = strrchr(s, '.');
425 if (strcmp(last_dot, ".dump") == 0)
428 blktrace_outfile = s;
432 static void compare_max_tf(struct trace_file *tf, int *seconds, u64 *max_offset)
434 if (tf->seconds > *seconds)
435 *seconds = tf->seconds;
436 if (tf->max_offset > *max_offset)
437 *max_offset = tf->max_offset;
440 static void set_all_max_tf(int seconds, u64 max_offset)
442 struct trace_file *tf;
444 list_for_each_entry(tf, &all_traces, list) {
445 tf->seconds = seconds;
446 tf->max_offset = max_offset;
450 static char *create_movie_temp_dir(void)
453 char *pattern = strdup("io-movie-XXXXXX");;
455 ret = mkdtemp(pattern);
457 perror("Unable to create temp directory for movie files");
463 static struct plot_history *alloc_plot_history(char *color)
465 struct plot_history *ph = calloc(1, sizeof(struct plot_history));
468 perror("memory allocation failed");
471 ph->history = calloc(4096, sizeof(double));
473 perror("memory allocation failed");
476 ph->history_len = 4096;
481 LIST_HEAD(movie_history_writes);
482 LIST_HEAD(movie_history_reads);
483 int num_histories = 0;
485 static void add_history(struct plot_history *ph, struct list_head *list)
487 struct plot_history *entry;
489 list_add_tail(&ph->list, list);
492 if (num_histories > 12) {
494 entry = list_entry(list->next, struct plot_history, list);
495 list_del(&entry->list);
496 free(entry->history);
501 static void plot_movie_history(struct plot *plot, struct list_head *list)
503 struct plot_history *ph;
505 if (num_histories > 2)
506 rewind_spindle_steps(num_histories - 1);
508 list_for_each_entry(ph, list, list) {
509 if (movie_style == MOVIE_SPINDLE)
510 svg_io_graph_movie_array_spindle(plot, ph);
512 svg_io_graph_movie_array(plot, ph);
516 static void free_all_plot_history(struct list_head *head)
518 struct plot_history *entry;
519 while (!list_empty(head)) {
520 entry = list_entry(head->next, struct plot_history, list);
521 list_del(&entry->list);
522 free(entry->history);
527 static void __plot_io(struct plot *plot, int seconds, u64 max_offset)
529 struct trace_file *tf;
533 svg_alloc_legend(plot, num_traces * 2);
535 set_plot_label(plot, "Device IO");
536 set_ylabel(plot, "Offset (MB)");
537 set_yticks(plot, 4, 0, max_offset / (1024 * 1024), "");
538 set_xticks(plot, 9, 0, seconds);
540 list_for_each_entry(tf, &all_traces, list) {
541 char *label = tf->label;
545 svg_io_graph(plot, tf->gdd_reads, tf->read_color);
546 if (tf->gdd_reads->total_ios)
547 svg_add_legend(plot, label, " Reads", tf->read_color);
549 svg_io_graph(plot, tf->gdd_writes, tf->write_color);
550 if (tf->gdd_writes->total_ios) {
551 svg_add_legend(plot, label, " Writes", tf->write_color);
554 if (plot->add_xlabel)
555 set_xlabel(plot, "Time (seconds)");
556 svg_write_legend(plot);
559 static void plot_io(struct plot *plot, int seconds, u64 max_offset)
561 if (active_graphs[IO_GRAPH_INDEX] == 0)
564 plot->add_xlabel = last_active_graph == IO_GRAPH_INDEX;
565 __plot_io(plot, seconds, max_offset);
569 static void __plot_tput(struct plot *plot, int seconds)
571 struct trace_file *tf;
577 svg_alloc_legend(plot, num_traces);
578 list_for_each_entry(tf, &all_traces, list) {
579 if (tf->tput_gld->max > max)
580 max = tf->tput_gld->max;
582 list_for_each_entry(tf, &all_traces, list)
583 tf->tput_gld->max = max;
586 set_plot_label(plot, "Throughput");
588 tf = list_entry(all_traces.next, struct trace_file, list);
590 scale_line_graph_bytes(&max, &units, 1024);
591 sprintf(line, "%sB/s", units);
592 set_ylabel(plot, line);
593 set_yticks(plot, 4, 0, max, "");
594 set_xticks(plot, 9, 0, seconds);
596 list_for_each_entry(tf, &all_traces, list) {
597 svg_line_graph(plot, tf->tput_gld, tf->read_color, 0, 0);
599 svg_add_legend(plot, tf->label, "", tf->read_color);
602 if (plot->add_xlabel)
603 set_xlabel(plot, "Time (seconds)");
605 svg_write_legend(plot);
608 static void plot_tput(struct plot *plot, int seconds)
610 if (active_graphs[TPUT_GRAPH_INDEX] == 0)
613 plot->add_xlabel = last_active_graph == TPUT_GRAPH_INDEX;
614 __plot_tput(plot, seconds);
618 static void convert_movie_files(char *movie_dir)
620 fprintf(stderr, "Converting svg files in %s\n", movie_dir);
621 snprintf(line, line_len, "find %s -name \\*.svg | xargs -I{} -n 1 -P 8 rsvg-convert -o {}.png {}",
626 static void mencode_movie(char *movie_dir)
628 fprintf(stderr, "Creating movie %s\n", movie_dir);
629 snprintf(line, line_len, "ffmpeg -r 20 -y -i %s/%%10d-%s.svg.png -b:v 250k "
630 "-vcodec libx264 %s", movie_dir, output_filename, output_filename);
634 static void cleanup_movie(char *movie_dir)
636 fprintf(stderr, "Removing movie dir %s\n", movie_dir);
637 snprintf(line, line_len, "rm %s/*", movie_dir);
640 snprintf(line, line_len, "rmdir %s", movie_dir);
644 static void plot_io_movie(struct plot *plot)
646 struct trace_file *tf;
647 char *movie_dir = create_movie_temp_dir();
649 struct plot_history *read_history;
650 struct plot_history *write_history;
653 int movie_frames_per_sec = 20;
654 int total_frames = movie_len * movie_frames_per_sec;
658 get_graph_size(&cols, &rows);
659 batch_count = cols / total_frames;
661 if (batch_count == 0)
664 list_for_each_entry(tf, &all_traces, list) {
665 char *label = tf->label;
671 snprintf(line, line_len, "%s/%010d-%s.svg", movie_dir, i, output_filename);
672 set_plot_output(plot, line);
674 set_plot_title(plot, graph_title);
675 if (movie_style == MOVIE_SPINDLE)
676 setup_axis_spindle(plot);
680 svg_alloc_legend(plot, num_traces * 2);
682 read_history = alloc_plot_history(tf->read_color);
683 write_history = alloc_plot_history(tf->write_color);
684 read_history->col = i;
685 write_history->col = i;
687 if (tf->gdd_reads->total_ios)
688 svg_add_legend(plot, label, " Reads", tf->read_color);
689 if (tf->gdd_writes->total_ios)
690 svg_add_legend(plot, label, " Writes", tf->write_color);
693 while (i < cols && batch_i < batch_count) {
694 svg_io_graph_movie(tf->gdd_reads, read_history, i);
695 svg_io_graph_movie(tf->gdd_writes, write_history, i);
700 add_history(read_history, &movie_history_reads);
701 add_history(write_history, &movie_history_writes);
703 plot_movie_history(plot, &movie_history_reads);
704 plot_movie_history(plot, &movie_history_writes);
706 svg_write_legend(plot);
709 set_graph_size(cols, rows / 7);
710 plot->add_xlabel = 1;
711 __plot_tput(plot, tf->gdd_reads->seconds);
712 svg_write_time_line(plot, i);
714 set_graph_size(cols, rows);
717 close_plot_file(plot);
719 free_all_plot_history(&movie_history_reads);
720 free_all_plot_history(&movie_history_writes);
722 convert_movie_files(movie_dir);
723 mencode_movie(movie_dir);
724 cleanup_movie(movie_dir);
728 static void plot_cpu(struct plot *plot, int seconds, char *label,
729 int active_index, int gld_index)
731 struct trace_file *tf;
740 if (active_graphs[active_index] == 0)
743 list_for_each_entry(tf, &all_traces, list) {
744 if (tf->trace->mpstat_num_cpus > max)
745 max = tf->trace->mpstat_num_cpus;
750 tf = list_entry(all_traces.next, struct trace_file, list);
752 ymax = tf->mpstat_gld[gld_index]->max;
756 svg_alloc_legend(plot, num_traces * max);
758 plot->add_xlabel = last_active_graph == active_index;
760 set_plot_label(plot, label);
762 seconds = tf->mpstat_seconds;
764 set_yticks(plot, 4, 0, tf->mpstat_gld[gld_index]->max, "");
765 set_ylabel(plot, "Percent");
766 set_xticks(plot, 9, 0, seconds);
769 list_for_each_entry(tf, &all_traces, list) {
770 for (i = 0; i < tf->mpstat_gld[0]->stop_seconds; i++) {
771 if (tf->mpstat_gld[gld_index]->data[i].count) {
772 avg += (tf->mpstat_gld[gld_index]->data[i].sum /
773 tf->mpstat_gld[gld_index]->data[i].count);
776 avg /= tf->mpstat_gld[gld_index]->stop_seconds;
777 color = pick_cpu_color();
778 svg_line_graph(plot, tf->mpstat_gld[0], color, 0, 0);
779 svg_add_legend(plot, tf->label, " avg", color);
781 for (i = 1; i < tf->trace->mpstat_num_cpus + 1; i++) {
782 struct graph_line_data *gld = tf->mpstat_gld[i * MPSTAT_GRAPHS + gld_index];
785 for (gld_i = 0; gld_i < gld->stop_seconds; gld_i++)
786 this_avg += gld->data[i].sum /
789 this_avg /= gld->stop_seconds;
791 for (gld_i = 0; gld_i < gld->stop_seconds; gld_i++) {
794 if (gld->data[gld_i].count == 0)
796 val = (double)gld->data[gld_i].sum /
797 gld->data[gld_i].count;
799 if (this_avg > avg + 30 || val > 95) {
800 color = pick_cpu_color();
801 svg_line_graph(plot, gld, color, avg + 30, 95);
802 snprintf(line, line_len, " CPU %d\n", i - 1);
803 svg_add_legend(plot, tf->label, line, color);
812 if (plot->add_xlabel)
813 set_xlabel(plot, "Time (seconds)");
815 svg_write_legend(plot);
816 svg_free_legend(plot);
820 static void plot_latency(struct plot *plot, int seconds)
822 struct trace_file *tf;
827 if (active_graphs[LATENCY_GRAPH_INDEX] == 0)
831 svg_alloc_legend(plot, num_traces);
832 list_for_each_entry(tf, &all_traces, list) {
833 if (tf->latency_gld->max > max)
834 max = tf->latency_gld->max;
836 list_for_each_entry(tf, &all_traces, list)
837 tf->latency_gld->max = max;
839 plot->add_xlabel = last_active_graph == TPUT_GRAPH_INDEX;
841 set_plot_label(plot, "IO Latency");
843 tf = list_entry(all_traces.next, struct trace_file, list);
845 scale_line_graph_time(&max, &units);
846 sprintf(line, "latency (%ss)", units);
847 set_ylabel(plot, line);
848 set_yticks(plot, 4, 0, max, "");
849 set_xticks(plot, 9, 0, seconds);
851 list_for_each_entry(tf, &all_traces, list) {
852 svg_line_graph(plot, tf->latency_gld, tf->read_color, 0, 0);
854 svg_add_legend(plot, tf->label, "", tf->read_color);
857 if (plot->add_xlabel)
858 set_xlabel(plot, "Time (seconds)");
860 svg_write_legend(plot);
864 static void plot_queue_depth(struct plot *plot, int seconds)
866 struct trace_file *tf;
868 if (active_graphs[QUEUE_DEPTH_GRAPH_INDEX] == 0)
871 plot->add_xlabel = last_active_graph == QUEUE_DEPTH_GRAPH_INDEX;
874 set_plot_label(plot, "Queue Depth");
876 svg_alloc_legend(plot, num_traces);
878 tf = list_entry(all_traces.next, struct trace_file, list);
879 set_ylabel(plot, "Pending IO");
880 set_yticks(plot, 4, 0, tf->queue_depth_gld->max, "");
881 set_xticks(plot, 9, 0, seconds);
883 list_for_each_entry(tf, &all_traces, list) {
884 svg_line_graph(plot, tf->queue_depth_gld, tf->read_color, 0, 0);
886 svg_add_legend(plot, tf->label, "", tf->read_color);
889 if (plot->add_xlabel)
890 set_xlabel(plot, "Time (seconds)");
892 svg_write_legend(plot);
896 static void plot_iops(struct plot *plot, int seconds)
898 struct trace_file *tf;
902 if (active_graphs[IOPS_GRAPH_INDEX] == 0)
905 list_for_each_entry(tf, &all_traces, list) {
906 if (tf->iop_gld->max > max)
907 max = tf->iop_gld->max;
910 list_for_each_entry(tf, &all_traces, list)
911 tf->iop_gld->max = max;
914 plot->add_xlabel = last_active_graph == IOPS_GRAPH_INDEX;
916 set_plot_label(plot, "IOPs");
918 svg_alloc_legend(plot, num_traces);
920 tf = list_entry(all_traces.next, struct trace_file, list);
922 scale_line_graph_bytes(&max, &units, 1000);
923 set_ylabel(plot, "IO/s");
925 set_yticks(plot, 4, 0, max, units);
926 set_xticks(plot, 9, 0, seconds);
928 list_for_each_entry(tf, &all_traces, list) {
929 svg_line_graph(plot, tf->iop_gld, tf->read_color, 0, 0);
931 svg_add_legend(plot, tf->label, "", tf->read_color);
934 if (plot->add_xlabel)
935 set_xlabel(plot, "Time (seconds)");
937 svg_write_legend(plot);
946 char *option_string = "T:t:o:l:r:O:N:d:p:m::h:w:";
947 static struct option long_options[] = {
948 {"title", required_argument, 0, 'T'},
949 {"trace", required_argument, 0, 't'},
950 {"output", required_argument, 0, 'o'},
951 {"label", required_argument, 0, 'l'},
952 {"rolling", required_argument, 0, 'r'},
953 {"no-graph", required_argument, 0, 'N'},
954 {"only-graph", required_argument, 0, 'O'},
955 {"device", required_argument, 0, 'd'},
956 {"prog", required_argument, 0, 'p'},
957 {"movie", optional_argument, 0, 'm'},
958 {"width", required_argument, 0, 'w'},
959 {"height", required_argument, 0, 'h'},
960 {"help", no_argument, 0, HELP_LONG_OPT},
964 static void print_usage(void)
966 fprintf(stderr, "iowatcher usage:\n"
967 "\t-d (--device): device for blktrace to trace\n"
968 "\t-t (--trace): trace file name (more than one allowed)\n"
969 "\t-l (--label): trace label in the graph\n"
970 "\t-o (--output): output file name (SVG only)\n"
971 "\t-p (--prog): program to run while blktrace is run\n"
972 "\t-p (--movie [=spindle|rect]): create IO animations\n"
973 "\t-r (--rolling): number of seconds in the rolling averge\n"
974 "\t-T (--title): graph title\n"
975 "\t-N (--no-graph): skip a single graph (io, tput, latency, queue_depth, iops)\n"
976 "\t-h (--height): set the height of each graph\n"
977 "\t-w (--width): set the width of each graph\n"
982 static int parse_options(int ac, char **av)
988 // int this_option_optind = optind ? optind : 1;
989 int option_index = 0;
991 c = getopt_long(ac, av, option_string,
992 long_options, &option_index);
999 graph_title = strdup(optarg);
1002 add_trace_file(optarg);
1003 set_blktrace_outfile(optarg);
1006 output_filename = strdup(optarg);
1009 set_trace_label(optarg);
1012 set_rolling_avg(atoi(optarg));
1016 disable_all_graphs();
1019 enable_one_graph(optarg);
1022 disable_one_graph(optarg);
1025 blktrace_device = strdup(optarg);
1028 program_to_run = strdup(optarg);
1033 movie_style = lookup_movie_style(optarg);
1034 if (movie_style < 0) {
1035 fprintf(stderr, "Unknown movie style %s\n", optarg);
1039 fprintf(stderr, "Using movie style: %s\n",
1040 movie_styles[movie_style]);
1043 opt_graph_height = atoi(optarg);
1046 opt_graph_width = atoi(optarg);
1060 int main(int ac, char **av)
1065 struct trace_file *tf;
1068 init_io_hash_table();
1070 enable_all_graphs();
1072 parse_options(ac, av);
1074 last_active_graph = last_graph();
1076 set_io_graph_scale(256);
1077 if (movie_style == MOVIE_SPINDLE)
1078 set_graph_size(550, 550);
1080 set_graph_size(700, 400);
1082 if (opt_graph_height)
1083 set_graph_height(opt_graph_height);
1085 if (opt_graph_width)
1086 set_graph_width(opt_graph_height);
1088 if (list_empty(&all_traces)) {
1089 fprintf(stderr, "No traces found, exiting\n");
1093 if (blktrace_device) {
1094 ret = start_blktrace(blktrace_device, blktrace_outfile,
1097 fprintf(stderr, "exiting due to blktrace failure\n");
1100 start_mpstat(blktrace_outfile);
1101 if (program_to_run) {
1102 ret = run_program(program_to_run);
1104 fprintf(stderr, "failed to run %s\n",
1109 blktrace_to_dump(blktrace_outfile);
1111 /* no program specified, just wait for
1118 /* step one, read all the traces */
1121 /* step two, find the maxes for time and offset */
1122 list_for_each_entry(tf, &all_traces, list)
1123 compare_max_tf(tf, &seconds, &max_offset);
1125 /* push the max we found into all the tfs */
1126 set_all_max_tf(seconds, max_offset);
1128 /* alloc graphing structs for all the traces */
1129 setup_trace_file_graphs();
1131 /* run through all the traces and read their events */
1132 read_trace_events();
1134 plot = alloc_plot();
1137 plot_io_movie(plot);
1141 set_plot_output(plot, output_filename);
1143 if (active_graphs[IO_GRAPH_INDEX] || found_mpstat)
1144 set_legend_width(longest_label + strlen("writes"));
1145 else if (num_traces > 1)
1146 set_legend_width(longest_label);
1148 set_legend_width(0);
1150 set_plot_title(plot, graph_title);
1151 plot_io(plot, seconds, max_offset);
1152 plot_tput(plot, seconds);
1153 plot_cpu(plot, seconds, "CPU IO Wait Time",
1154 CPU_IO_GRAPH_INDEX, MPSTAT_IO);
1155 plot_cpu(plot, seconds, "CPU System Time",
1156 CPU_SYS_GRAPH_INDEX, MPSTAT_SYS);
1157 plot_cpu(plot, seconds, "CPU IRQ Time",
1158 CPU_IRQ_GRAPH_INDEX, MPSTAT_IRQ);
1159 plot_cpu(plot, seconds, "CPU SoftIRQ Time",
1160 CPU_SOFT_GRAPH_INDEX, MPSTAT_SOFT);
1161 plot_cpu(plot, seconds, "CPU User Time",
1162 CPU_USER_GRAPH_INDEX, MPSTAT_USER);
1164 plot_latency(plot, seconds);
1165 plot_queue_depth(plot, seconds);
1166 plot_iops(plot, seconds);
1170 close_plot_file(plot);