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_legend(struct plot *plot, struct graph_dot_data *gdd, char *prefix, char *rw)
721 ret = asprintf(&label, "%s %s", prefix, gdd->label);
723 ret = asprintf(&label, "%s", prefix);
725 perror("Failed to process labels");
728 svg_add_legend(plot, label, rw, gdd->color);
732 static void plot_io(struct plot *plot, unsigned int min_seconds,
733 unsigned int max_seconds, u64 min_offset, u64 max_offset)
735 struct trace_file *tf;
738 if (active_graphs[IO_GRAPH_INDEX] == 0)
743 svg_alloc_legend(plot, count_io_plot_types() * 2);
745 set_plot_label(plot, "Device IO");
746 set_ylabel(plot, "Offset (MB)");
747 set_yticks(plot, num_yticks, min_offset / (1024 * 1024),
748 max_offset / (1024 * 1024), "");
749 set_xticks(plot, num_xticks, min_seconds, max_seconds);
751 list_for_each_entry(tf, &all_traces, list) {
752 char *prefix = tf->label ? tf->label : "";
754 for (i = 0; i < tf->io_plots; i++) {
755 if (tf->gdd_writes[i]) {
756 svg_io_graph(plot, tf->gdd_writes[i]);
757 plot_io_legend(plot, tf->gdd_writes[i], prefix, " Writes");
759 if (tf->gdd_reads[i]) {
760 svg_io_graph(plot, tf->gdd_reads[i]);
761 plot_io_legend(plot, tf->gdd_reads[i], prefix, " Reads");
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) {
1096 char *prefix = tf->label ? tf->label : "";
1100 snprintf(line, line_len, "%s/%010d-%s.svg", movie_dir, i, output_filename);
1101 set_plot_output(plot, line);
1102 set_plot_title(plot, graph_title);
1103 orig_y_offset = plot->start_y_offset;
1105 plot->no_legend = 1;
1107 set_graph_size(cols / graph_width_factor, rows / 8);
1108 plot->timeline = i / graph_width_factor;
1110 plot_tput(plot, tf->min_seconds, tf->max_seconds, 0);
1112 plot_cpu(plot, tf->max_seconds,
1113 "CPU System Time", CPU_SYS_GRAPH_INDEX, MPSTAT_SYS);
1115 plot->direction = PLOT_ACROSS;
1116 plot_queue_depth(plot, tf->min_seconds, tf->max_seconds);
1118 /* movie graph starts here */
1119 plot->start_y_offset = orig_y_offset;
1120 set_graph_size(cols - cols / graph_width_factor, rows);
1121 plot->no_legend = 0;
1123 plot->direction = PLOT_DOWN;;
1125 if (movie_style == MOVIE_SPINDLE)
1126 setup_axis_spindle(plot);
1130 svg_alloc_legend(plot, count_io_plot_types() * 2);
1132 history = alloc_plot_history(tf);
1135 for (pid = 0; pid < tf->io_plots; pid++) {
1136 if (tf->gdd_reads[pid])
1137 plot_io_legend(plot, tf->gdd_reads[pid], prefix, " Reads");
1138 if (tf->gdd_writes[pid])
1139 plot_io_legend(plot, tf->gdd_writes[pid], prefix, " Writes");
1143 while (i < cols && batch_i < batch_count) {
1144 for (pid = 0; pid < tf->io_plots; pid++) {
1145 if (tf->gdd_reads[pid]) {
1146 svg_io_graph_movie(tf->gdd_reads[pid],
1147 history->read_pid_history[pid],
1150 if (tf->gdd_writes[pid]) {
1151 svg_io_graph_movie(tf->gdd_writes[pid],
1152 history->write_pid_history[pid],
1160 add_history(history, &movie_history);
1162 plot_movie_history(plot, &movie_history);
1164 svg_write_legend(plot);
1168 close_plot_file(plot);
1170 free_all_plot_history(&movie_history);
1172 convert_movie_files(movie_dir);
1173 encode_movie(movie_dir);
1174 cleanup_movie(movie_dir);
1177 static void plot_latency(struct plot *plot, unsigned int min_seconds,
1178 unsigned int max_seconds)
1180 struct trace_file *tf;
1185 if (active_graphs[LATENCY_GRAPH_INDEX] == 0)
1189 svg_alloc_legend(plot, num_traces);
1191 list_for_each_entry(tf, &all_traces, list) {
1192 if (tf->latency_gld->max > max)
1193 max = tf->latency_gld->max;
1196 list_for_each_entry(tf, &all_traces, list)
1197 tf->latency_gld->max = max;
1200 set_plot_label(plot, "IO Latency");
1202 tf = list_entry(all_traces.next, struct trace_file, list);
1204 scale_line_graph_time(&max, &units);
1205 sprintf(line, "latency (%ss)", units);
1206 set_ylabel(plot, line);
1207 set_yticks(plot, num_yticks, 0, max, "");
1208 set_xticks(plot, num_xticks, min_seconds, max_seconds);
1210 list_for_each_entry(tf, &all_traces, list) {
1211 svg_line_graph(plot, tf->latency_gld, tf->line_color, 0, 0);
1213 svg_add_legend(plot, tf->label, "", tf->line_color);
1216 if (plot->add_xlabel)
1217 set_xlabel(plot, "Time (seconds)");
1219 svg_write_legend(plot);
1221 total_graphs_written++;
1224 static void plot_iops(struct plot *plot, unsigned int min_seconds,
1225 unsigned int max_seconds)
1227 struct trace_file *tf;
1231 if (active_graphs[IOPS_GRAPH_INDEX] == 0)
1234 list_for_each_entry(tf, &all_traces, list) {
1235 if (tf->iop_gld->max > max)
1236 max = tf->iop_gld->max;
1239 list_for_each_entry(tf, &all_traces, list)
1240 tf->iop_gld->max = max;
1243 set_plot_label(plot, "IOPs");
1245 svg_alloc_legend(plot, num_traces);
1247 tf = list_entry(all_traces.next, struct trace_file, list);
1249 scale_line_graph_bytes(&max, &units, 1000);
1250 set_ylabel(plot, "IO/s");
1252 set_yticks(plot, num_yticks, 0, max, units);
1253 set_xticks(plot, num_xticks, min_seconds, max_seconds);
1255 list_for_each_entry(tf, &all_traces, list) {
1256 svg_line_graph(plot, tf->iop_gld, tf->line_color, 0, 0);
1258 svg_add_legend(plot, tf->label, "", tf->line_color);
1261 if (plot->add_xlabel)
1262 set_xlabel(plot, "Time (seconds)");
1264 svg_write_legend(plot);
1267 total_graphs_written++;
1270 static void check_plot_columns(struct plot *plot, int index)
1274 if (columns > 1 && (total_graphs_written == 0 ||
1275 total_graphs_written % columns != 0)) {
1276 count = graphs_left(index);
1277 if (plot->direction == PLOT_DOWN) {
1278 plot->start_x_offset = 0;
1279 if (count <= columns)
1280 plot->add_xlabel = 1;
1282 plot->direction = PLOT_ACROSS;
1285 plot->direction = PLOT_DOWN;
1286 if (index == last_active_graph)
1287 plot->add_xlabel = 1;
1296 char *option_string = "+F:T:t:o:l:r:O:N:d:D:pm::h:w:c:x:y:a:C:PK";
1297 static struct option long_options[] = {
1298 {"columns", required_argument, 0, 'c'},
1299 {"fio-trace", required_argument, 0, 'F'},
1300 {"title", required_argument, 0, 'T'},
1301 {"trace", required_argument, 0, 't'},
1302 {"output", required_argument, 0, 'o'},
1303 {"label", required_argument, 0, 'l'},
1304 {"rolling", required_argument, 0, 'r'},
1305 {"no-graph", required_argument, 0, 'N'},
1306 {"only-graph", required_argument, 0, 'O'},
1307 {"device", required_argument, 0, 'd'},
1308 {"blktrace-destination", required_argument, 0, 'D'},
1309 {"prog", no_argument, 0, 'p'},
1310 {"movie", optional_argument, 0, 'm'},
1311 {"codec", optional_argument, 0, 'C'},
1312 {"keep-movie-svgs", no_argument, 0, 'K'},
1313 {"width", required_argument, 0, 'w'},
1314 {"height", required_argument, 0, 'h'},
1315 {"xzoom", required_argument, 0, 'x'},
1316 {"yzoom", required_argument, 0, 'y'},
1317 {"io-plot-action", required_argument, 0, 'a'},
1318 {"per-process-io", no_argument, 0, 'P'},
1319 {"help", no_argument, 0, HELP_LONG_OPT},
1323 static void print_usage(void)
1325 fprintf(stderr, "iowatcher usage:\n"
1326 "\t-d (--device): device for blktrace to trace\n"
1327 "\t-D (--blktrace-destination): destination for blktrace\n"
1328 "\t-t (--trace): trace file name (more than one allowed)\n"
1329 "\t-F (--fio-trace): fio bandwidth trace (more than one allowed)\n"
1330 "\t-l (--label): trace label in the graph\n"
1331 "\t-o (--output): output file name for the SVG image or video\n"
1332 "\t-p (--prog): run a program while blktrace is run\n"
1333 "\t-K (--keep-movie-svgs keep svgs generated for movie mode\n"
1334 "\t-m (--movie [=spindle|rect]): create IO animations\n"
1335 "\t-C (--codec): ffmpeg codec. Use ffmpeg -codecs to list\n"
1336 "\t-r (--rolling): number of seconds in the rolling averge\n"
1337 "\t-T (--title): graph title\n"
1338 "\t-N (--no-graph): skip a single graph (io, tput, latency, queue_depth, \n"
1339 "\t\t\tiops, cpu-sys, cpu-io, cpu-irq cpu-soft cpu-user)\n"
1340 "\t-O (--only-graph): add a single graph to the output\n"
1341 "\t-h (--height): set the height of each graph\n"
1342 "\t-w (--width): set the width of each graph\n"
1343 "\t-c (--columns): numbers of columns in graph output\n"
1344 "\t-x (--xzoom): limit processed time to min:max\n"
1345 "\t-y (--yzoom): limit processed sectors to min:max\n"
1346 "\t-a (--io-plot-action): plot given action (one of Q,D,C) in IO graph\n"
1347 "\t-P (--per-process-io): distinguish between processes in IO graph\n"
1352 static int parse_double_range(char *str, double *min, double *max)
1356 /* Empty lower bound - leave original value */
1357 if (str[0] != ':') {
1358 *min = strtod(str, &end);
1359 if (*min == HUGE_VAL || *min == -HUGE_VAL)
1365 /* Empty upper bound - leave original value */
1367 *max = strtod(end+1, &end);
1368 if (*max == HUGE_VAL || *max == -HUGE_VAL)
1378 static int parse_ull_range(char *str, unsigned long long *min,
1379 unsigned long long *max)
1383 /* Empty lower bound - leave original value */
1384 if (str[0] != ':') {
1385 *min = strtoull(str, &end, 10);
1386 if (*min == ULLONG_MAX && errno == ERANGE)
1392 /* Empty upper bound - leave original value */
1394 *max = strtoull(end+1, &end, 10);
1395 if (*max == ULLONG_MAX && errno == ERANGE)
1405 static int parse_options(int ac, char **av)
1412 int option_index = 0;
1414 c = getopt_long(ac, av, option_string,
1415 long_options, &option_index);
1422 graph_title = strdup(optarg);
1425 add_trace_file(optarg);
1426 set_blktrace_outfile(optarg);
1429 add_fio_trace_file(optarg);
1432 output_filename = strdup(optarg);
1435 set_trace_label(optarg);
1438 set_rolling_avg(atoi(optarg));
1442 disable_all_graphs();
1445 enable_one_graph(optarg);
1448 disable_one_graph(optarg);
1451 if (num_blktrace_devices == MAX_DEVICES_PER_TRACE - 1) {
1452 fprintf(stderr, "Too many blktrace devices provided\n");
1455 blktrace_devices[num_blktrace_devices++] = strdup(optarg);
1458 blktrace_dest_dir = strdup(optarg);
1459 if (!strcmp(blktrace_dest_dir, "")) {
1460 fprintf(stderr, "Need a directory\n");
1468 keep_movie_svgs = 1;
1473 movie_style = lookup_movie_style(optarg);
1474 if (movie_style < 0) {
1475 fprintf(stderr, "Unknown movie style %s\n", optarg);
1479 fprintf(stderr, "Using movie style: %s\n",
1480 movie_styles[movie_style]);
1483 ffmpeg_codec = strdup(optarg);
1486 opt_graph_height = atoi(optarg);
1489 opt_graph_width = atoi(optarg);
1492 columns = atoi(optarg);
1495 if (parse_double_range(optarg, &min_time, &max_time)
1497 fprintf(stderr, "Cannot parse time range %s\n",
1503 if (parse_ull_range(optarg, &min_mb, &max_mb)
1506 "Cannot parse offset range %s\n",
1510 if (max_mb > ULLONG_MAX >> 20) {
1512 "Upper range limit too big."
1513 " Maximum is %llu.\n", ULLONG_MAX >> 20);
1518 if (strlen(optarg) != 1) {
1520 fprintf(stderr, "Action must be one of Q, D, C.");
1523 plot_io_action = action_char_to_num(optarg[0]);
1524 if (plot_io_action < 0)
1539 if (optind < ac && p_flagged) {
1540 prog_argv = &av[optind];
1541 prog_argc = ac - optind;
1542 } else if (p_flagged) {
1543 fprintf(stderr, "--prog or -p given but no program specified\n");
1545 } else if (optind < ac) {
1546 fprintf(stderr, "Extra arguments '%s'... (and --prog not specified)\n", av[optind]);
1553 static void dest_mkdir(char *dir)
1557 ret = mkdir(dir, 0777);
1558 if (ret && errno != EEXIST) {
1559 fprintf(stderr, "failed to mkdir error %s\n", strerror(errno));
1564 int main(int ac, char **av)
1567 unsigned int min_seconds = 0;
1568 unsigned int max_seconds = 0;
1570 u64 min_offset = ~(u64)0;
1571 struct trace_file *tf;
1575 init_io_hash_table();
1576 init_process_hash_table();
1578 enable_all_graphs();
1580 parse_options(ac, av);
1582 last_active_graph = last_graph();
1584 set_io_graph_scale(256);
1585 if (movie_style == MOVIE_SPINDLE)
1586 set_graph_size(750, 550);
1588 set_graph_size(700, 400);
1591 * the plots in the movie don't have a seconds
1592 * line yet, this makes us skip it
1594 last_active_graph = TOTAL_GRAPHS + 1;
1596 if (opt_graph_height)
1597 set_graph_height(opt_graph_height);
1599 if (opt_graph_width)
1600 set_graph_width(opt_graph_width);
1602 if (list_empty(&all_traces) && list_empty(&fio_traces)) {
1603 fprintf(stderr, "No traces found, exiting\n");
1607 if (num_blktrace_devices) {
1608 char *path = join_path(blktrace_dest_dir, blktrace_outfile);
1609 dest_mkdir(blktrace_dest_dir);
1612 snprintf(line, line_len, "%s.dump", path);
1615 ret = start_blktrace(blktrace_devices, num_blktrace_devices,
1616 blktrace_outfile, blktrace_dest_dir);
1618 perror("Exiting due to blktrace failure");
1622 snprintf(line, line_len, "%s.mpstat", path);
1623 ret = start_mpstat(line);
1625 perror("Exiting due to mpstat failure");
1629 if (prog_argv && prog_argc) {
1630 run_program(prog_argc, prog_argv, 1, NULL, NULL);
1631 wait_for_tracers(SIGINT);
1633 printf("Tracing until interrupted...\n");
1634 wait_for_tracers(0);
1639 /* step one, read all the traces */
1642 /* step two, find the maxes for time and offset */
1643 list_for_each_entry(tf, &all_traces, list)
1644 compare_minmax_tf(tf, &max_seconds, &min_offset, &max_offset);
1645 list_for_each_entry(tf, &fio_traces, list)
1646 compare_minmax_tf(tf, &max_seconds, &min_offset, &max_offset);
1647 min_seconds = min_time;
1648 if (max_seconds > max_time)
1649 max_seconds = ceil(max_time);
1650 if (min_offset < min_mb << 20)
1651 min_offset = min_mb << 20;
1652 if (max_offset > max_mb << 20)
1653 max_offset = max_mb << 20;
1655 /* push the max we found into all the tfs */
1656 set_all_minmax_tf(min_seconds, max_seconds, min_offset, max_offset);
1658 /* alloc graphing structs for all the traces */
1659 setup_trace_file_graphs();
1661 /* run through all the traces and read their events */
1662 read_trace_events();
1664 pick_line_graph_color();
1666 plot = alloc_plot();
1669 set_legend_width(longest_label + longest_proc_name + 1 + strlen("writes"));
1670 plot_io_movie(plot);
1674 set_plot_output(plot, output_filename);
1676 if (active_graphs[IO_GRAPH_INDEX] || found_mpstat)
1677 set_legend_width(longest_label + longest_proc_name + 1 + strlen("writes"));
1678 else if (num_traces >= 1 || num_fio_traces >= 1)
1679 set_legend_width(longest_label);
1681 set_legend_width(0);
1683 get_graph_size(&cols, &rows);
1685 plot->add_xlabel = 1;
1686 set_plot_title(plot, graph_title);
1688 check_plot_columns(plot, IO_GRAPH_INDEX);
1689 plot_io(plot, min_seconds, max_seconds, min_offset, max_offset);
1690 plot->add_xlabel = 0;
1693 set_graph_size(cols / columns, rows);
1694 num_xticks /= columns;
1701 check_plot_columns(plot, TPUT_GRAPH_INDEX);
1702 plot_tput(plot, min_seconds, max_seconds, 1);
1704 check_plot_columns(plot, FIO_GRAPH_INDEX);
1705 plot_fio_tput(plot, min_seconds, max_seconds);
1707 check_plot_columns(plot, CPU_IO_GRAPH_INDEX);
1708 plot_cpu(plot, max_seconds, "CPU IO Wait Time",
1709 CPU_IO_GRAPH_INDEX, MPSTAT_IO);
1711 check_plot_columns(plot, CPU_SYS_GRAPH_INDEX);
1712 plot_cpu(plot, max_seconds, "CPU System Time",
1713 CPU_SYS_GRAPH_INDEX, MPSTAT_SYS);
1715 check_plot_columns(plot, CPU_IRQ_GRAPH_INDEX);
1716 plot_cpu(plot, max_seconds, "CPU IRQ Time",
1717 CPU_IRQ_GRAPH_INDEX, MPSTAT_IRQ);
1719 check_plot_columns(plot, CPU_SOFT_GRAPH_INDEX);
1720 plot_cpu(plot, max_seconds, "CPU SoftIRQ Time",
1721 CPU_SOFT_GRAPH_INDEX, MPSTAT_SOFT);
1723 check_plot_columns(plot, CPU_USER_GRAPH_INDEX);
1724 plot_cpu(plot, max_seconds, "CPU User Time",
1725 CPU_USER_GRAPH_INDEX, MPSTAT_USER);
1727 check_plot_columns(plot, LATENCY_GRAPH_INDEX);
1728 plot_latency(plot, min_seconds, max_seconds);
1730 check_plot_columns(plot, QUEUE_DEPTH_GRAPH_INDEX);
1731 plot_queue_depth(plot, min_seconds, max_seconds);
1733 check_plot_columns(plot, IOPS_GRAPH_INDEX);
1734 plot_iops(plot, min_seconds, max_seconds);
1738 close_plot_file(plot);