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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 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>
45 LIST_HEAD(all_traces);
46 LIST_HEAD(fio_traces);
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;
56 static int columns = 1;
57 static int num_xticks = 9;
58 static int num_yticks = 4;
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;
65 int plot_io_action = 0;
66 int io_per_process = 0;
67 unsigned int longest_proc_name = 0;
70 * this doesn't include the IO graph,
71 * but it counts the other graphs as they go out
73 static int total_graphs_written = 1;
85 QUEUE_DEPTH_GRAPH_INDEX,
99 static char *graphs_by_name[] = {
119 char *movie_styles[] = {
125 static int movie_style = 0;
127 static int lookup_movie_style(char *str)
131 for (i = 0; i < NUM_MOVIE_STYLES; i++) {
132 if (strcmp(str, movie_styles[i]) == 0)
138 static int active_graphs[TOTAL_GRAPHS];
139 static int last_active_graph = IOPS_GRAPH_INDEX;
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;
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";
156 static void alloc_mpstat_gld(struct trace_file *tf)
158 struct graph_line_data **ptr;
160 if (tf->trace->mpstat_num_cpus == 0)
163 ptr = calloc((tf->trace->mpstat_num_cpus + 1) * MPSTAT_GRAPHS,
164 sizeof(struct graph_line_data *));
166 perror("Unable to allocate mpstat arrays\n");
169 tf->mpstat_gld = ptr;
172 static void enable_all_graphs(void)
175 for (i = 0; i < TOTAL_GRAPHS; i++)
176 active_graphs[i] = 1;
179 static void disable_all_graphs(void)
182 for (i = 0; i < TOTAL_GRAPHS; i++)
183 active_graphs[i] = 0;
186 static int enable_one_graph(char *name)
189 for (i = 0; i < TOTAL_GRAPHS; i++) {
190 if (strcmp(name, graphs_by_name[i]) == 0) {
191 active_graphs[i] = 1;
198 static int disable_one_graph(char *name)
201 for (i = 0; i < TOTAL_GRAPHS; i++) {
202 if (strcmp(name, graphs_by_name[i]) == 0) {
203 active_graphs[i] = 0;
210 static int last_graph(void)
213 for (i = TOTAL_GRAPHS - 1; i >= 0; i--) {
214 if (active_graphs[i]) {
221 static int graphs_left(int cur)
225 for (i = cur; i < TOTAL_GRAPHS; i++) {
226 if (active_graphs[i])
232 static char * join_path(char *dest_dir, char *filename)
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);
241 static void add_trace_file(char *filename)
243 struct trace_file *tf;
245 tf = calloc(1, sizeof(*tf));
247 fprintf(stderr, "Unable to allocate memory\n");
251 tf->filename = strdup(filename);
252 list_add_tail(&tf->list, &all_traces);
253 tf->line_color = "black";
257 static void add_fio_trace_file(char *filename)
259 struct trace_file *tf;
261 tf = calloc(1, sizeof(*tf));
263 fprintf(stderr, "Unable to allocate memory\n");
267 tf->filename = strdup(filename);
268 list_add_tail(&tf->list, &fio_traces);
269 tf->line_color = pick_fio_color();
274 static void setup_trace_file_graphs(void)
276 struct trace_file *tf;
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);
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;
296 if (tf->trace->mpstat_num_cpus == 0)
299 alloc_mpstat_gld(tf);
300 for (i = 0; i < (tf->trace->mpstat_num_cpus + 1) * MPSTAT_GRAPHS; 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;
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,
319 static void read_traces(void)
321 struct trace_file *tf;
330 list_for_each_entry(tf, &all_traces, list) {
331 path = join_path(blktrace_dest_dir, tf->filename);
333 trace = open_trace(path);
337 last_time = find_last_time(trace);
339 tf->max_seconds = SECONDS(last_time) + 1;
340 tf->stop_seconds = SECONDS(last_time) + 1;
342 find_extreme_offsets(trace, &tf->min_offset, &tf->max_offset,
343 &max_bank, &max_bank_offset);
344 filter_outliers(trace, tf->min_offset, tf->max_offset, &ymin, &ymax);
345 tf->min_offset = ymin;
346 tf->max_offset = ymax;
348 read_mpstat(trace, path);
349 tf->mpstat_stop_seconds = trace->mpstat_seconds;
350 tf->mpstat_max_seconds = trace->mpstat_seconds;
351 if (tf->mpstat_max_seconds)
357 list_for_each_entry(tf, &fio_traces, list) {
358 trace = open_fio_trace(tf->filename);
362 tf->max_seconds = tf->trace->fio_seconds;
363 tf->stop_seconds = tf->trace->fio_seconds;
367 static void pick_line_graph_color(void)
369 struct trace_file *tf;
372 list_for_each_entry(tf, &all_traces, list) {
373 for (i = 0; i < tf->io_plots; i++) {
374 if (tf->gdd_reads[i]) {
375 tf->line_color = tf->gdd_reads[i]->color;
376 tf->reads_color = tf->gdd_reads[i]->color;
378 if (tf->gdd_writes[i]) {
379 tf->line_color = tf->gdd_writes[i]->color;
380 tf->writes_color = tf->gdd_writes[i]->color;
382 if (tf->writes_color && tf->reads_color)
385 if (!tf->reads_color)
386 tf->reads_color = tf->line_color;
387 if (!tf->writes_color)
388 tf->writes_color = tf->line_color;
392 static void read_fio_events(struct trace_file *tf)
399 first_fio(tf->trace);
401 ret = read_fio_event(tf->trace, &time, &bw, &dir);
406 add_fio_gld(time, bw, tf->fio_gld);
407 if (next_fio_line(tf->trace))
412 static void read_trace_events(void)
415 struct trace_file *tf;
420 double user, sys, iowait, irq, soft;
421 double max_user = 0, max_sys = 0, max_iowait = 0,
422 max_irq = 0, max_soft = 0;
424 list_for_each_entry(tf, &fio_traces, list)
427 list_for_each_entry(tf, &all_traces, list) {
432 if (SECONDS(get_record_time(trace)) > tf->max_seconds)
435 add_tput(trace, tf->tput_writes_gld, tf->tput_reads_gld);
436 add_iop(trace, tf->iop_gld);
438 add_pending_io(trace, tf->queue_depth_gld);
439 add_completed_io(trace, tf->latency_gld);
440 } while (!(ret = next_record(trace)));
442 list_for_each_entry(tf, &all_traces, list) {
445 if (trace->mpstat_num_cpus == 0)
450 for (time = 0; time < tf->mpstat_stop_seconds; time++) {
451 for (i = 0; i < (trace->mpstat_num_cpus + 1) * MPSTAT_GRAPHS; i += MPSTAT_GRAPHS) {
452 ret = read_mpstat_event(trace, &user, &sys,
453 &iowait, &irq, &soft);
456 if (next_mpstat_line(trace))
465 if (iowait > max_iowait)
468 add_mpstat_gld(time, sys, tf->mpstat_gld[i + MPSTAT_SYS]);
469 add_mpstat_gld(time, irq, tf->mpstat_gld[i + MPSTAT_IRQ]);
470 add_mpstat_gld(time, soft, tf->mpstat_gld[i + MPSTAT_SOFT]);
471 add_mpstat_gld(time, user, tf->mpstat_gld[i + MPSTAT_USER]);
472 add_mpstat_gld(time, iowait, tf->mpstat_gld[i + MPSTAT_IO]);
474 if (next_mpstat(trace) == NULL)
480 list_for_each_entry(tf, &all_traces, list) {
483 if (trace->mpstat_num_cpus == 0)
486 tf->mpstat_gld[MPSTAT_SYS]->max = max_sys;
487 tf->mpstat_gld[MPSTAT_IRQ]->max = max_irq;
488 tf->mpstat_gld[MPSTAT_SOFT]->max = max_soft;
489 tf->mpstat_gld[MPSTAT_USER]->max = max_user;
490 tf->mpstat_gld[MPSTAT_IO]->max = max_iowait;;
495 static void set_trace_label(char *label)
498 struct trace_file *tf;
499 int len = strlen(label);
501 if (len > longest_label)
504 list_for_each_entry(tf, &all_traces, list) {
505 if (cur == label_index) {
506 tf->label = strdup(label);
513 list_for_each_entry(tf, &fio_traces, list) {
514 if (cur == label_index) {
515 tf->label = strdup(label);
523 static void set_blktrace_outfile(char *arg)
525 char *s = strdup(arg);
526 char *last_dot = strrchr(s, '.');
529 if (strcmp(last_dot, ".dump") == 0)
532 blktrace_outfile = s;
536 static void compare_minmax_tf(struct trace_file *tf, unsigned int *max_seconds,
537 u64 *min_offset, u64 *max_offset)
539 if (tf->max_seconds > *max_seconds)
540 *max_seconds = tf->max_seconds;
541 if (tf->max_offset > *max_offset)
542 *max_offset = tf->max_offset;
543 if (tf->min_offset < *min_offset)
544 *min_offset = tf->min_offset;
547 static void set_all_minmax_tf(unsigned int min_seconds,
548 unsigned int max_seconds,
549 u64 min_offset, u64 max_offset)
551 struct trace_file *tf;
552 struct list_head *traces = &all_traces;
554 list_for_each_entry(tf, traces, list) {
555 tf->min_seconds = min_seconds;
556 tf->max_seconds = max_seconds;
557 if (tf->stop_seconds > max_seconds)
558 tf->stop_seconds = max_seconds;
559 if (tf->mpstat_max_seconds) {
560 tf->mpstat_min_seconds = min_seconds;
561 tf->mpstat_max_seconds = max_seconds;
562 if (tf->mpstat_stop_seconds > max_seconds)
563 tf->mpstat_stop_seconds = max_seconds;
565 tf->min_offset = min_offset;
566 tf->max_offset = max_offset;
568 if (traces == &all_traces) {
569 traces = &fio_traces;
574 static struct pid_plot_history *alloc_pid_plot_history(char *color)
576 struct pid_plot_history *pph;
578 pph = calloc(1, sizeof(struct pid_plot_history));
580 perror("memory allocation failed");
583 pph->history = malloc(sizeof(double) * 4096);
585 perror("memory allocation failed");
588 pph->history_len = 4096;
594 static struct plot_history *alloc_plot_history(struct trace_file *tf)
596 struct plot_history *ph = calloc(1, sizeof(struct plot_history));
600 perror("memory allocation failed");
603 ph->read_pid_history = calloc(tf->io_plots, sizeof(struct pid_plot_history *));
604 if (!ph->read_pid_history) {
605 perror("memory allocation failed");
608 ph->write_pid_history = calloc(tf->io_plots, sizeof(struct pid_plot_history *));
609 if (!ph->write_pid_history) {
610 perror("memory allocation failed");
613 ph->pid_history_count = tf->io_plots;
614 for (i = 0; i < tf->io_plots; i++) {
615 if (tf->gdd_reads[i])
616 ph->read_pid_history[i] = alloc_pid_plot_history(tf->gdd_reads[i]->color);
617 if (tf->gdd_writes[i])
618 ph->write_pid_history[i] = alloc_pid_plot_history(tf->gdd_writes[i]->color);
623 LIST_HEAD(movie_history);
624 int num_histories = 0;
626 static void free_plot_history(struct plot_history *ph)
630 for (pid = 0; pid < ph->pid_history_count; pid++) {
631 if (ph->read_pid_history[pid])
632 free(ph->read_pid_history[pid]);
633 if (ph->write_pid_history[pid])
634 free(ph->write_pid_history[pid]);
636 free(ph->read_pid_history);
637 free(ph->write_pid_history);
641 static void add_history(struct plot_history *ph, struct list_head *list)
643 struct plot_history *entry;
645 list_add_tail(&ph->list, list);
648 if (num_histories > 12) {
650 entry = list_entry(list->next, struct plot_history, list);
651 list_del(&entry->list);
652 free_plot_history(entry);
656 static void plot_movie_history(struct plot *plot, struct list_head *list)
658 struct plot_history *ph;
661 if (num_histories > 2)
662 rewind_spindle_steps(num_histories - 1);
664 list_for_each_entry(ph, list, list) {
665 for (pid = 0; pid < ph->pid_history_count; pid++) {
666 if (ph->read_pid_history[pid]) {
667 if (movie_style == MOVIE_SPINDLE) {
668 svg_io_graph_movie_array_spindle(plot,
669 ph->read_pid_history[pid]);
671 svg_io_graph_movie_array(plot,
672 ph->read_pid_history[pid]);
675 if (ph->write_pid_history[pid]) {
676 if (movie_style == MOVIE_SPINDLE) {
677 svg_io_graph_movie_array_spindle(plot,
678 ph->write_pid_history[pid]);
680 svg_io_graph_movie_array(plot,
681 ph->write_pid_history[pid]);
688 static void free_all_plot_history(struct list_head *head)
690 struct plot_history *entry;
692 while (!list_empty(head)) {
693 entry = list_entry(head->next, struct plot_history, list);
694 list_del(&entry->list);
695 free_plot_history(entry);
699 static int count_io_plot_types(void)
701 struct trace_file *tf;
703 int total_io_types = 0;
705 list_for_each_entry(tf, &all_traces, list) {
706 for (i = 0; i < tf->io_plots; i++) {
707 if (tf->gdd_reads[i])
709 if (tf->gdd_writes[i])
713 return total_io_types;
716 static void plot_io(struct plot *plot, unsigned int min_seconds,
717 unsigned int max_seconds, u64 min_offset, u64 max_offset)
719 struct trace_file *tf;
722 if (active_graphs[IO_GRAPH_INDEX] == 0)
727 svg_alloc_legend(plot, count_io_plot_types() * 2);
729 set_plot_label(plot, "Device IO");
730 set_ylabel(plot, "Offset (MB)");
731 set_yticks(plot, num_yticks, min_offset / (1024 * 1024),
732 max_offset / (1024 * 1024), "");
733 set_xticks(plot, num_xticks, min_seconds, max_seconds);
735 list_for_each_entry(tf, &all_traces, list) {
742 strncpy(label, tf->label, 255);
747 pos = label + strlen(label);
749 for (i = 0; i < tf->io_plots; i++) {
750 if (tf->gdd_writes[i]) {
751 svg_io_graph(plot, tf->gdd_writes[i]);
753 strcpy(pos, tf->gdd_writes[i]->label);
754 svg_add_legend(plot, label, " Writes", tf->gdd_writes[i]->color);
756 if (tf->gdd_reads[i]) {
757 svg_io_graph(plot, tf->gdd_reads[i]);
759 strcpy(pos, tf->gdd_reads[i]->label);
760 svg_add_legend(plot, label, " Reads", tf->gdd_reads[i]->color);
765 if (plot->add_xlabel)
766 set_xlabel(plot, "Time (seconds)");
767 svg_write_legend(plot);
771 static void plot_tput(struct plot *plot, unsigned int min_seconds,
772 unsigned int max_seconds, int with_legend)
774 struct trace_file *tf;
779 if (active_graphs[TPUT_GRAPH_INDEX] == 0)
783 svg_alloc_legend(plot, num_traces * 2);
785 list_for_each_entry(tf, &all_traces, list) {
786 if (tf->tput_writes_gld->max > max)
787 max = tf->tput_writes_gld->max;
788 if (tf->tput_reads_gld->max > max)
789 max = tf->tput_reads_gld->max;
791 list_for_each_entry(tf, &all_traces, list) {
792 if (tf->tput_writes_gld->max > 0)
793 tf->tput_writes_gld->max = max;
794 if (tf->tput_reads_gld->max > 0)
795 tf->tput_reads_gld->max = max;
799 set_plot_label(plot, "Throughput");
801 tf = list_entry(all_traces.next, struct trace_file, list);
803 scale_line_graph_bytes(&max, &units, 1024);
804 sprintf(line, "%sB/s", units);
805 set_ylabel(plot, line);
806 set_yticks(plot, num_yticks, 0, max, "");
807 set_xticks(plot, num_xticks, min_seconds, max_seconds);
809 list_for_each_entry(tf, &all_traces, list) {
810 if (tf->tput_writes_gld->max > 0) {
811 svg_line_graph(plot, tf->tput_writes_gld, tf->writes_color, 0, 0);
813 svg_add_legend(plot, tf->label, "Writes", tf->writes_color);
815 if (tf->tput_reads_gld->max > 0) {
816 svg_line_graph(plot, tf->tput_reads_gld, tf->reads_color, 0, 0);
818 svg_add_legend(plot, tf->label, "Reads", tf->reads_color);
822 if (plot->add_xlabel)
823 set_xlabel(plot, "Time (seconds)");
826 svg_write_legend(plot);
829 total_graphs_written++;
832 static void plot_fio_tput(struct plot *plot,
833 unsigned int min_seconds, unsigned 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, unsigned 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 (gld_i = tf->mpstat_gld[0]->min_seconds;
928 gld_i < tf->mpstat_gld[0]->stop_seconds; gld_i++) {
929 if (tf->mpstat_gld[gld_index]->data[gld_i].count) {
930 avg += (tf->mpstat_gld[gld_index]->data[gld_i].sum /
931 tf->mpstat_gld[gld_index]->data[gld_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, unsigned int min_seconds,
988 unsigned int max_seconds)
990 struct trace_file *tf;
992 if (active_graphs[QUEUE_DEPTH_GRAPH_INDEX] == 0)
996 set_plot_label(plot, "Queue Depth");
998 svg_alloc_legend(plot, num_traces);
1000 tf = list_entry(all_traces.next, struct trace_file, list);
1001 set_ylabel(plot, "Pending IO");
1002 set_yticks(plot, num_yticks, 0, tf->queue_depth_gld->max, "");
1003 set_xticks(plot, num_xticks, min_seconds, max_seconds);
1005 list_for_each_entry(tf, &all_traces, list) {
1006 svg_line_graph(plot, tf->queue_depth_gld, tf->line_color, 0, 0);
1008 svg_add_legend(plot, tf->label, "", tf->line_color);
1011 if (plot->add_xlabel)
1012 set_xlabel(plot, "Time (seconds)");
1014 svg_write_legend(plot);
1016 total_graphs_written++;
1019 static void convert_movie_files(char *movie_dir)
1021 fprintf(stderr, "Converting svg files in %s\n", movie_dir);
1022 snprintf(line, line_len, "find %s -name \\*.svg | xargs -I{} -n 1 -P 8 rsvg-convert -o {}.png {}",
1027 static void mencode_movie(char *movie_dir)
1029 fprintf(stderr, "Creating movie %s with ffmpeg\n", movie_dir);
1030 snprintf(line, line_len, "ffmpeg -r 20 -y -i %s/%%10d-%s.svg.png -b:v 250k "
1031 "-vcodec %s %s", movie_dir, output_filename, ffmpeg_codec,
1036 static void tencode_movie(char *movie_dir)
1038 fprintf(stderr, "Creating movie %s with png2theora\n", movie_dir);
1039 snprintf(line, line_len, "png2theora -o %s %s/%%010d-%s.svg.png",
1040 output_filename, movie_dir, output_filename);
1044 static void encode_movie(char *movie_dir)
1046 char *last_dot = strrchr(output_filename, '.');
1049 (!strncmp(last_dot, ".ogg", 4) || !strncmp(last_dot, ".ogv", 4))) {
1050 tencode_movie(movie_dir);
1052 mencode_movie(movie_dir);
1055 static void cleanup_movie(char *movie_dir)
1057 if (keep_movie_svgs) {
1058 fprintf(stderr, "Keeping movie dir %s\n", movie_dir);
1061 fprintf(stderr, "Removing movie dir %s\n", movie_dir);
1062 snprintf(line, line_len, "rm %s/*", movie_dir);
1065 snprintf(line, line_len, "rmdir %s", movie_dir);
1069 static void plot_io_movie(struct plot *plot)
1071 struct trace_file *tf;
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;
1082 char movie_dir[] = "io-movie-XXXXXX";
1084 if (mkdtemp(movie_dir) == NULL) {
1085 perror("Unable to create temp directory for movie files");
1089 get_graph_size(&cols, &rows);
1090 batch_count = cols / total_frames;
1092 if (batch_count == 0)
1095 list_for_each_entry(tf, &all_traces, list) {
1102 strcpy(label, tf->label);
1106 pos = label + strlen(label);
1110 snprintf(line, line_len, "%s/%010d-%s.svg", movie_dir, i, output_filename);
1111 set_plot_output(plot, line);
1112 set_plot_title(plot, graph_title);
1113 orig_y_offset = plot->start_y_offset;
1115 plot->no_legend = 1;
1117 set_graph_size(cols / graph_width_factor, rows / 8);
1118 plot->timeline = i / graph_width_factor;
1120 plot_tput(plot, tf->min_seconds, tf->max_seconds, 0);
1122 plot_cpu(plot, tf->max_seconds,
1123 "CPU System Time", CPU_SYS_GRAPH_INDEX, MPSTAT_SYS);
1125 plot->direction = PLOT_ACROSS;
1126 plot_queue_depth(plot, tf->min_seconds, tf->max_seconds);
1128 /* movie graph starts here */
1129 plot->start_y_offset = orig_y_offset;
1130 set_graph_size(cols - cols / graph_width_factor, rows);
1131 plot->no_legend = 0;
1133 plot->direction = PLOT_DOWN;;
1135 if (movie_style == MOVIE_SPINDLE)
1136 setup_axis_spindle(plot);
1140 svg_alloc_legend(plot, count_io_plot_types() * 2);
1142 history = alloc_plot_history(tf);
1145 for (pid = 0; pid < tf->io_plots; pid++) {
1146 if (tf->gdd_reads[pid]) {
1148 strcpy(pos, tf->gdd_reads[pid]->label);
1149 svg_add_legend(plot, label, " Reads", tf->gdd_reads[pid]->color);
1151 if (tf->gdd_writes[pid]) {
1153 strcpy(pos, tf->gdd_writes[pid]->label);
1154 svg_add_legend(plot, label, " Writes", tf->gdd_writes[pid]->color);
1159 while (i < cols && batch_i < batch_count) {
1160 for (pid = 0; pid < tf->io_plots; pid++) {
1161 if (tf->gdd_reads[pid]) {
1162 svg_io_graph_movie(tf->gdd_reads[pid],
1163 history->read_pid_history[pid],
1166 if (tf->gdd_writes[pid]) {
1167 svg_io_graph_movie(tf->gdd_writes[pid],
1168 history->write_pid_history[pid],
1176 add_history(history, &movie_history);
1178 plot_movie_history(plot, &movie_history);
1180 svg_write_legend(plot);
1184 close_plot_file(plot);
1186 free_all_plot_history(&movie_history);
1188 convert_movie_files(movie_dir);
1189 encode_movie(movie_dir);
1190 cleanup_movie(movie_dir);
1193 static void plot_latency(struct plot *plot, unsigned int min_seconds,
1194 unsigned int max_seconds)
1196 struct trace_file *tf;
1201 if (active_graphs[LATENCY_GRAPH_INDEX] == 0)
1205 svg_alloc_legend(plot, num_traces);
1207 list_for_each_entry(tf, &all_traces, list) {
1208 if (tf->latency_gld->max > max)
1209 max = tf->latency_gld->max;
1212 list_for_each_entry(tf, &all_traces, list)
1213 tf->latency_gld->max = max;
1216 set_plot_label(plot, "IO Latency");
1218 tf = list_entry(all_traces.next, struct trace_file, list);
1220 scale_line_graph_time(&max, &units);
1221 sprintf(line, "latency (%ss)", units);
1222 set_ylabel(plot, line);
1223 set_yticks(plot, num_yticks, 0, max, "");
1224 set_xticks(plot, num_xticks, min_seconds, max_seconds);
1226 list_for_each_entry(tf, &all_traces, list) {
1227 svg_line_graph(plot, tf->latency_gld, tf->line_color, 0, 0);
1229 svg_add_legend(plot, tf->label, "", tf->line_color);
1232 if (plot->add_xlabel)
1233 set_xlabel(plot, "Time (seconds)");
1235 svg_write_legend(plot);
1237 total_graphs_written++;
1240 static void plot_iops(struct plot *plot, unsigned int min_seconds,
1241 unsigned int max_seconds)
1243 struct trace_file *tf;
1247 if (active_graphs[IOPS_GRAPH_INDEX] == 0)
1250 list_for_each_entry(tf, &all_traces, list) {
1251 if (tf->iop_gld->max > max)
1252 max = tf->iop_gld->max;
1255 list_for_each_entry(tf, &all_traces, list)
1256 tf->iop_gld->max = max;
1259 set_plot_label(plot, "IOPs");
1261 svg_alloc_legend(plot, num_traces);
1263 tf = list_entry(all_traces.next, struct trace_file, list);
1265 scale_line_graph_bytes(&max, &units, 1000);
1266 set_ylabel(plot, "IO/s");
1268 set_yticks(plot, num_yticks, 0, max, units);
1269 set_xticks(plot, num_xticks, min_seconds, max_seconds);
1271 list_for_each_entry(tf, &all_traces, list) {
1272 svg_line_graph(plot, tf->iop_gld, tf->line_color, 0, 0);
1274 svg_add_legend(plot, tf->label, "", tf->line_color);
1277 if (plot->add_xlabel)
1278 set_xlabel(plot, "Time (seconds)");
1280 svg_write_legend(plot);
1283 total_graphs_written++;
1286 static void check_plot_columns(struct plot *plot, int index)
1290 if (columns > 1 && (total_graphs_written == 0 ||
1291 total_graphs_written % columns != 0)) {
1292 count = graphs_left(index);
1293 if (plot->direction == PLOT_DOWN) {
1294 plot->start_x_offset = 0;
1295 if (count <= columns)
1296 plot->add_xlabel = 1;
1298 plot->direction = PLOT_ACROSS;
1301 plot->direction = PLOT_DOWN;
1302 if (index == last_active_graph)
1303 plot->add_xlabel = 1;
1312 char *option_string = "+F:T:t:o:l:r:O:N:d:D:pm::h:w:c:x:y:a:C:PK";
1313 static struct option long_options[] = {
1314 {"columns", required_argument, 0, 'c'},
1315 {"fio-trace", required_argument, 0, 'F'},
1316 {"title", required_argument, 0, 'T'},
1317 {"trace", required_argument, 0, 't'},
1318 {"output", required_argument, 0, 'o'},
1319 {"label", required_argument, 0, 'l'},
1320 {"rolling", required_argument, 0, 'r'},
1321 {"no-graph", required_argument, 0, 'N'},
1322 {"only-graph", required_argument, 0, 'O'},
1323 {"device", required_argument, 0, 'd'},
1324 {"blktrace-destination", required_argument, 0, 'D'},
1325 {"prog", no_argument, 0, 'p'},
1326 {"movie", optional_argument, 0, 'm'},
1327 {"codec", optional_argument, 0, 'C'},
1328 {"keep-movie-svgs", no_argument, 0, 'K'},
1329 {"width", required_argument, 0, 'w'},
1330 {"height", required_argument, 0, 'h'},
1331 {"xzoom", required_argument, 0, 'x'},
1332 {"yzoom", required_argument, 0, 'y'},
1333 {"io-plot-action", required_argument, 0, 'a'},
1334 {"per-process-io", no_argument, 0, 'P'},
1335 {"help", no_argument, 0, HELP_LONG_OPT},
1339 static void print_usage(void)
1341 fprintf(stderr, "iowatcher usage:\n"
1342 "\t-d (--device): device for blktrace to trace\n"
1343 "\t-D (--blktrace-destination): destination for blktrace\n"
1344 "\t-t (--trace): trace file name (more than one allowed)\n"
1345 "\t-F (--fio-trace): fio bandwidth trace (more than one allowed)\n"
1346 "\t-l (--label): trace label in the graph\n"
1347 "\t-o (--output): output file name for the SVG image or video\n"
1348 "\t-p (--prog): run a program while blktrace is run\n"
1349 "\t-K (--keep-movie-svgs keep svgs generated for movie mode\n"
1350 "\t-m (--movie [=spindle|rect]): create IO animations\n"
1351 "\t-C (--codec): ffmpeg codec. Use ffmpeg -codecs to list\n"
1352 "\t-r (--rolling): number of seconds in the rolling averge\n"
1353 "\t-T (--title): graph title\n"
1354 "\t-N (--no-graph): skip a single graph (io, tput, latency, queue_depth, \n"
1355 "\t\t\tiops, cpu-sys, cpu-io, cpu-irq cpu-soft cpu-user)\n"
1356 "\t-O (--only-graph): add a single graph to the output\n"
1357 "\t-h (--height): set the height of each graph\n"
1358 "\t-w (--width): set the width of each graph\n"
1359 "\t-c (--columns): numbers of columns in graph output\n"
1360 "\t-x (--xzoom): limit processed time to min:max\n"
1361 "\t-y (--yzoom): limit processed sectors to min:max\n"
1362 "\t-a (--io-plot-action): plot given action (one of Q,D,C) in IO graph\n"
1363 "\t-P (--per-process-io): distinguish between processes in IO graph\n"
1368 static int parse_double_range(char *str, double *min, double *max)
1372 /* Empty lower bound - leave original value */
1373 if (str[0] != ':') {
1374 *min = strtod(str, &end);
1375 if (*min == HUGE_VAL || *min == -HUGE_VAL)
1381 /* Empty upper bound - leave original value */
1383 *max = strtod(end+1, &end);
1384 if (*max == HUGE_VAL || *max == -HUGE_VAL)
1394 static int parse_ull_range(char *str, unsigned long long *min,
1395 unsigned long long *max)
1399 /* Empty lower bound - leave original value */
1400 if (str[0] != ':') {
1401 *min = strtoull(str, &end, 10);
1402 if (*min == ULLONG_MAX && errno == ERANGE)
1408 /* Empty upper bound - leave original value */
1410 *max = strtoull(end+1, &end, 10);
1411 if (*max == ULLONG_MAX && errno == ERANGE)
1421 static int parse_options(int ac, char **av)
1428 int option_index = 0;
1430 c = getopt_long(ac, av, option_string,
1431 long_options, &option_index);
1438 graph_title = strdup(optarg);
1441 add_trace_file(optarg);
1442 set_blktrace_outfile(optarg);
1445 add_fio_trace_file(optarg);
1448 output_filename = strdup(optarg);
1451 set_trace_label(optarg);
1454 set_rolling_avg(atoi(optarg));
1458 disable_all_graphs();
1461 enable_one_graph(optarg);
1464 disable_one_graph(optarg);
1467 if (num_blktrace_devices == MAX_DEVICES_PER_TRACE - 1) {
1468 fprintf(stderr, "Too many blktrace devices provided\n");
1471 blktrace_devices[num_blktrace_devices++] = strdup(optarg);
1474 blktrace_dest_dir = strdup(optarg);
1475 if (!strcmp(blktrace_dest_dir, "")) {
1476 fprintf(stderr, "Need a directory\n");
1484 keep_movie_svgs = 1;
1489 movie_style = lookup_movie_style(optarg);
1490 if (movie_style < 0) {
1491 fprintf(stderr, "Unknown movie style %s\n", optarg);
1495 fprintf(stderr, "Using movie style: %s\n",
1496 movie_styles[movie_style]);
1499 ffmpeg_codec = strdup(optarg);
1502 opt_graph_height = atoi(optarg);
1505 opt_graph_width = atoi(optarg);
1508 columns = atoi(optarg);
1511 if (parse_double_range(optarg, &min_time, &max_time)
1513 fprintf(stderr, "Cannot parse time range %s\n",
1519 if (parse_ull_range(optarg, &min_mb, &max_mb)
1522 "Cannot parse offset range %s\n",
1526 if (max_mb > ULLONG_MAX >> 20) {
1528 "Upper range limit too big."
1529 " Maximum is %llu.\n", ULLONG_MAX >> 20);
1534 if (strlen(optarg) != 1) {
1536 fprintf(stderr, "Action must be one of Q, D, C.");
1539 plot_io_action = action_char_to_num(optarg[0]);
1540 if (plot_io_action < 0)
1555 if (optind < ac && p_flagged) {
1556 prog_argv = &av[optind];
1557 prog_argc = ac - optind;
1558 } else if (p_flagged) {
1559 fprintf(stderr, "--prog or -p given but no program specified\n");
1561 } else if (optind < ac) {
1562 fprintf(stderr, "Extra arguments '%s'... (and --prog not specified)\n", av[optind]);
1569 static void dest_mkdir(char *dir)
1573 ret = mkdir(dir, 0777);
1574 if (ret && errno != EEXIST) {
1575 fprintf(stderr, "failed to mkdir error %s\n", strerror(errno));
1580 int main(int ac, char **av)
1583 unsigned int min_seconds = 0;
1584 unsigned int max_seconds = 0;
1586 u64 min_offset = ~(u64)0;
1587 struct trace_file *tf;
1591 init_io_hash_table();
1592 init_process_hash_table();
1594 enable_all_graphs();
1596 parse_options(ac, av);
1598 last_active_graph = last_graph();
1600 set_io_graph_scale(256);
1601 if (movie_style == MOVIE_SPINDLE)
1602 set_graph_size(750, 550);
1604 set_graph_size(700, 400);
1607 * the plots in the movie don't have a seconds
1608 * line yet, this makes us skip it
1610 last_active_graph = TOTAL_GRAPHS + 1;
1612 if (opt_graph_height)
1613 set_graph_height(opt_graph_height);
1615 if (opt_graph_width)
1616 set_graph_width(opt_graph_width);
1618 if (list_empty(&all_traces) && list_empty(&fio_traces)) {
1619 fprintf(stderr, "No traces found, exiting\n");
1623 if (num_blktrace_devices) {
1624 char *path = join_path(blktrace_dest_dir, blktrace_outfile);
1625 dest_mkdir(blktrace_dest_dir);
1628 snprintf(line, line_len, "%s.dump", path);
1631 ret = start_blktrace(blktrace_devices, num_blktrace_devices,
1632 blktrace_outfile, blktrace_dest_dir);
1634 perror("Exiting due to blktrace failure");
1638 snprintf(line, line_len, "%s.mpstat", path);
1639 ret = start_mpstat(line);
1641 perror("Exiting due to mpstat failure");
1645 if (prog_argv && prog_argc) {
1646 run_program(prog_argc, prog_argv, 1, NULL, NULL);
1647 wait_for_tracers(SIGINT);
1649 printf("Tracing until interrupted...\n");
1650 wait_for_tracers(0);
1655 /* step one, read all the traces */
1658 /* step two, find the maxes for time and offset */
1659 list_for_each_entry(tf, &all_traces, list)
1660 compare_minmax_tf(tf, &max_seconds, &min_offset, &max_offset);
1661 list_for_each_entry(tf, &fio_traces, list)
1662 compare_minmax_tf(tf, &max_seconds, &min_offset, &max_offset);
1663 min_seconds = min_time;
1664 if (max_seconds > max_time)
1665 max_seconds = ceil(max_time);
1666 if (min_offset < min_mb << 20)
1667 min_offset = min_mb << 20;
1668 if (max_offset > max_mb << 20)
1669 max_offset = max_mb << 20;
1671 /* push the max we found into all the tfs */
1672 set_all_minmax_tf(min_seconds, max_seconds, min_offset, max_offset);
1674 /* alloc graphing structs for all the traces */
1675 setup_trace_file_graphs();
1677 /* run through all the traces and read their events */
1678 read_trace_events();
1680 pick_line_graph_color();
1682 plot = alloc_plot();
1685 set_legend_width(longest_label + longest_proc_name + 1 + strlen("writes"));
1686 plot_io_movie(plot);
1690 set_plot_output(plot, output_filename);
1692 if (active_graphs[IO_GRAPH_INDEX] || found_mpstat)
1693 set_legend_width(longest_label + longest_proc_name + 1 + strlen("writes"));
1694 else if (num_traces >= 1 || num_fio_traces >= 1)
1695 set_legend_width(longest_label);
1697 set_legend_width(0);
1699 get_graph_size(&cols, &rows);
1701 plot->add_xlabel = 1;
1702 set_plot_title(plot, graph_title);
1704 check_plot_columns(plot, IO_GRAPH_INDEX);
1705 plot_io(plot, min_seconds, max_seconds, min_offset, max_offset);
1706 plot->add_xlabel = 0;
1709 set_graph_size(cols / columns, rows);
1710 num_xticks /= columns;
1717 check_plot_columns(plot, TPUT_GRAPH_INDEX);
1718 plot_tput(plot, min_seconds, max_seconds, 1);
1720 check_plot_columns(plot, FIO_GRAPH_INDEX);
1721 plot_fio_tput(plot, min_seconds, max_seconds);
1723 check_plot_columns(plot, CPU_IO_GRAPH_INDEX);
1724 plot_cpu(plot, max_seconds, "CPU IO Wait Time",
1725 CPU_IO_GRAPH_INDEX, MPSTAT_IO);
1727 check_plot_columns(plot, CPU_SYS_GRAPH_INDEX);
1728 plot_cpu(plot, max_seconds, "CPU System Time",
1729 CPU_SYS_GRAPH_INDEX, MPSTAT_SYS);
1731 check_plot_columns(plot, CPU_IRQ_GRAPH_INDEX);
1732 plot_cpu(plot, max_seconds, "CPU IRQ Time",
1733 CPU_IRQ_GRAPH_INDEX, MPSTAT_IRQ);
1735 check_plot_columns(plot, CPU_SOFT_GRAPH_INDEX);
1736 plot_cpu(plot, max_seconds, "CPU SoftIRQ Time",
1737 CPU_SOFT_GRAPH_INDEX, MPSTAT_SOFT);
1739 check_plot_columns(plot, CPU_USER_GRAPH_INDEX);
1740 plot_cpu(plot, max_seconds, "CPU User Time",
1741 CPU_USER_GRAPH_INDEX, MPSTAT_USER);
1743 check_plot_columns(plot, LATENCY_GRAPH_INDEX);
1744 plot_latency(plot, min_seconds, max_seconds);
1746 check_plot_columns(plot, QUEUE_DEPTH_GRAPH_INDEX);
1747 plot_queue_depth(plot, min_seconds, max_seconds);
1749 check_plot_columns(plot, IOPS_GRAPH_INDEX);
1750 plot_iops(plot, min_seconds, max_seconds);
1754 close_plot_file(plot);