+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
/***
- bootchart.c - This file is part of systemd-bootchart
+ This file is part of systemd.
- Copyright (C) 2009-2013 Intel Coproration
+ Copyright (C) 2009-2013 Intel Corporation
Authors:
Auke Kok <auke-jan.h.kok@intel.com>
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
+/***
+
+ Many thanks to those who contributed ideas and code:
+ - Ziga Mahkovec - Original bootchart author
+ - Anders Norgaard - PyBootchartgui
+ - Michael Meeks - bootchart2
+ - Scott James Remnant - Ubuntu C-based logger
+ - Arjan van der Ven - for the idea to merge bootgraph.pl functionality
+
+ ***/
+
#include <sys/time.h>
#include <sys/types.h>
#include <sys/resource.h>
+#include <sys/stat.h>
#include <stdio.h>
#include <signal.h>
#include <stdlib.h>
#include <getopt.h>
#include <limits.h>
#include <errno.h>
+#include <fcntl.h>
+#include <stdbool.h>
+#include "systemd/sd-journal.h"
-
-#include "bootchart.h"
#include "util.h"
+#include "fileio.h"
+#include "macro.h"
+#include "conf-parser.h"
+#include "strxcpyx.h"
+#include "path-util.h"
+#include "store.h"
+#include "svg.h"
+#include "bootchart.h"
+#include "list.h"
double graph_start;
double log_start;
-double sampletime[MAXSAMPLES];
struct ps_struct *ps_first;
-struct block_stat_struct blockstat[MAXSAMPLES];
-int entropy_avail[MAXSAMPLES];
-struct cpu_stat_struct cpustat[MAXCPUS];
int pscount;
int cpus;
double interval;
-FILE *of;
+FILE *of = NULL;
int overrun = 0;
static int exiting = 0;
+int sysfd=-1;
+
+#define DEFAULT_SAMPLES_LEN 500
+#define DEFAULT_HZ 25.0
+#define DEFAULT_SCALE_X 100.0 /* 100px = 1sec */
+#define DEFAULT_SCALE_Y 20.0 /* 16px = 1 process bar */
+#define DEFAULT_INIT "/sbin/init"
+#define DEFAULT_OUTPUT "/run/log"
/* graph defaults */
-int entropy = 0;
-int initcall = 1;
-int relative;
-int filter = 1;
-int pss = 0;
+bool arg_entropy = false;
+bool initcall = true;
+bool arg_relative = false;
+bool arg_filter = true;
+bool arg_show_cmdline = false;
+bool arg_show_cgroup = false;
+bool arg_pss = false;
int samples;
-int len = 500; /* we record len+1 (1 start sample) */
-double hz = 25.0; /* 20 seconds log time */
-double scale_x = 100.0; /* 100px = 1sec */
-double scale_y = 20.0; /* 16px = 1 process bar */
+int arg_samples_len = DEFAULT_SAMPLES_LEN; /* we record len+1 (1 start sample) */
+double arg_hz = DEFAULT_HZ;
+double arg_scale_x = DEFAULT_SCALE_X;
+double arg_scale_y = DEFAULT_SCALE_Y;
+static struct list_sample_data *sampledata;
+struct list_sample_data *head;
-char init_path[PATH_MAX] = "/sbin/init";
-char output_path[PATH_MAX] = "/var/log";
+char arg_init_path[PATH_MAX] = DEFAULT_INIT;
+char arg_output_path[PATH_MAX] = DEFAULT_OUTPUT;
-static struct rlimit rlim;
-
-static void signal_handler(int sig)
-{
+static void signal_handler(int sig) {
if (sig++)
sig--;
exiting = 1;
}
+#define BOOTCHART_CONF "/etc/systemd/bootchart.conf"
+
+#define BOOTCHART_MAX (16*1024*1024)
+
+static void parse_conf(void) {
+ char *init = NULL, *output = NULL;
+ const ConfigTableItem items[] = {
+ { "Bootchart", "Samples", config_parse_int, 0, &arg_samples_len },
+ { "Bootchart", "Frequency", config_parse_double, 0, &arg_hz },
+ { "Bootchart", "Relative", config_parse_bool, 0, &arg_relative },
+ { "Bootchart", "Filter", config_parse_bool, 0, &arg_filter },
+ { "Bootchart", "Output", config_parse_path, 0, &output },
+ { "Bootchart", "Init", config_parse_path, 0, &init },
+ { "Bootchart", "PlotMemoryUsage", config_parse_bool, 0, &arg_pss },
+ { "Bootchart", "PlotEntropyGraph", config_parse_bool, 0, &arg_entropy },
+ { "Bootchart", "ScaleX", config_parse_double, 0, &arg_scale_x },
+ { "Bootchart", "ScaleY", config_parse_double, 0, &arg_scale_y },
+ { "Bootchart", "ControlGroup", config_parse_bool, 0, &arg_show_cgroup },
+ { NULL, NULL, NULL, 0, NULL }
+ };
+
+ config_parse(NULL, BOOTCHART_CONF, NULL,
+ NULL,
+ config_item_table_lookup, items,
+ true, false, true, NULL);
+
+ if (init != NULL)
+ strscpy(arg_init_path, sizeof(arg_init_path), init);
+ if (output != NULL)
+ strscpy(arg_output_path, sizeof(arg_output_path), output);
+}
-int main(int argc, char *argv[])
-{
- struct sigaction sig;
- struct ps_struct *ps;
- char output_file[PATH_MAX];
- char datestr[200];
- time_t t = 0;
- FILE *f;
- int gind;
- int i;
-
- rlim.rlim_cur = 4096;
- rlim.rlim_max = 4096;
- (void) setrlimit(RLIMIT_NOFILE, &rlim);
+static void help(void) {
+ fprintf(stdout,
+ "Usage: %s [OPTIONS]\n\n"
+ "Options:\n"
+ " -r, --rel Record time relative to recording\n"
+ " -f, --freq=FREQ Sample frequency [%g]\n"
+ " -n, --samples=N Stop sampling at [%d] samples\n"
+ " -x, --scale-x=N Scale the graph horizontally [%g] \n"
+ " -y, --scale-y=N Scale the graph vertically [%g] \n"
+ " -p, --pss Enable PSS graph (CPU intensive)\n"
+ " -e, --entropy Enable the entropy_avail graph\n"
+ " -o, --output=PATH Path to output files [%s]\n"
+ " -i, --init=PATH Path to init executable [%s]\n"
+ " -F, --no-filter Disable filtering of unimportant or ephemeral processes\n"
+ " -C, --cmdline Display full command lines with arguments\n"
+ " -c, --control-group Display process control group\n"
+ " -h, --help Display this message\n\n"
+ "See bootchart.conf for more information.\n",
+ program_invocation_short_name,
+ DEFAULT_HZ,
+ DEFAULT_SAMPLES_LEN,
+ DEFAULT_SCALE_X,
+ DEFAULT_SCALE_Y,
+ DEFAULT_OUTPUT,
+ DEFAULT_INIT);
+}
- f = fopen("/etc/systemd/bootchart.conf", "r");
- if (f) {
- char buf[256];
- char *key;
- char *val;
-
- while (fgets(buf, 80, f) != NULL) {
- char *c;
-
- c = strchr(buf, '\n');
- if (c) *c = 0; /* remove trailing \n */
-
- if (buf[0] == '#')
- continue; /* comment line */
-
- key = strtok(buf, "=");
- if (!key)
- continue;
- val = strtok(NULL, "=");
- if (!val)
- continue;
-
- // todo: filter leading/trailing whitespace
-
- if (streq(key, "samples"))
- len = atoi(val);
- if (streq(key, "freq"))
- hz = atof(val);
- if (streq(key, "rel"))
- relative = atoi(val);
- if (streq(key, "filter"))
- filter = atoi(val);
- if (streq(key, "pss"))
- pss = atoi(val);
- if (streq(key, "output"))
- strncpy(output_path, val, PATH_MAX - 1);
- if (streq(key, "init"))
- strncpy(init_path, val, PATH_MAX - 1);
- if (streq(key, "scale_x"))
- scale_x = atof(val);
- if (streq(key, "scale_y"))
- scale_y = atof(val);
- if (streq(key, "entropy"))
- entropy = atoi(val);
- }
- fclose(f);
- }
+static int parse_argv(int argc, char *argv[]) {
+ static const struct option options[] = {
+ {"rel", no_argument, NULL, 'r'},
+ {"freq", required_argument, NULL, 'f'},
+ {"samples", required_argument, NULL, 'n'},
+ {"pss", no_argument, NULL, 'p'},
+ {"output", required_argument, NULL, 'o'},
+ {"init", required_argument, NULL, 'i'},
+ {"no-filter", no_argument, NULL, 'F'},
+ {"cmdline", no_argument, NULL, 'C'},
+ {"control-group", no_argument, NULL, 'c'},
+ {"help", no_argument, NULL, 'h'},
+ {"scale-x", required_argument, NULL, 'x'},
+ {"scale-y", required_argument, NULL, 'y'},
+ {"entropy", no_argument, NULL, 'e'},
+ {}
+ };
+ int c, r;
+
+ if (getpid() == 1)
+ opterr = 0;
+
+ while ((c = getopt_long(argc, argv, "erpf:n:o:i:FCchx:y:", options, NULL)) >= 0)
+ switch (c) {
- while (1) {
- static struct option opts[] = {
- {"rel", 0, NULL, 'r'},
- {"freq", 1, NULL, 'f'},
- {"samples", 1, NULL, 'n'},
- {"pss", 0, NULL, 'p'},
- {"output", 1, NULL, 'o'},
- {"init", 1, NULL, 'i'},
- {"filter", 0, NULL, 'F'},
- {"help", 0, NULL, 'h'},
- {"scale-x", 1, NULL, 'x'},
- {"scale-y", 1, NULL, 'y'},
- {"entropy", 0, NULL, 'e'},
- {NULL, 0, NULL, 0}
- };
-
- gind = 0;
-
- i = getopt_long(argc, argv, "erpf:n:o:i:Fhx:y:", opts, &gind);
- if (i == -1)
- break;
- switch (i) {
case 'r':
- relative = 1;
+ arg_relative = true;
break;
case 'f':
- hz = atof(optarg);
+ r = safe_atod(optarg, &arg_hz);
+ if (r < 0)
+ log_warning("failed to parse --freq/-f argument '%s': %s",
+ optarg, strerror(-r));
break;
case 'F':
- filter = 0;
+ arg_filter = false;
+ break;
+ case 'C':
+ arg_show_cmdline = true;
+ break;
+ case 'c':
+ arg_show_cgroup = true;
break;
case 'n':
- len = atoi(optarg);
+ r = safe_atoi(optarg, &arg_samples_len);
+ if (r < 0)
+ log_warning("failed to parse --samples/-n argument '%s': %s",
+ optarg, strerror(-r));
break;
case 'o':
- strncpy(output_path, optarg, PATH_MAX - 1);
+ path_kill_slashes(optarg);
+ strscpy(arg_output_path, sizeof(arg_output_path), optarg);
break;
case 'i':
- strncpy(init_path, optarg, PATH_MAX - 1);
+ path_kill_slashes(optarg);
+ strscpy(arg_init_path, sizeof(arg_init_path), optarg);
break;
case 'p':
- pss = 1;
+ arg_pss = true;
break;
case 'x':
- scale_x = atof(optarg);
+ r = safe_atod(optarg, &arg_scale_x);
+ if (r < 0)
+ log_warning("failed to parse --scale-x/-x argument '%s': %s",
+ optarg, strerror(-r));
break;
case 'y':
- scale_y = atof(optarg);
+ r = safe_atod(optarg, &arg_scale_y);
+ if (r < 0)
+ log_warning("failed to parse --scale-y/-y argument '%s': %s",
+ optarg, strerror(-r));
break;
case 'e':
- entropy = 1;
+ arg_entropy = true;
break;
case 'h':
- fprintf(stderr, "Usage: %s [OPTIONS]\n", argv[0]);
- fprintf(stderr, " --rel, -r Record time relative to recording\n");
- fprintf(stderr, " --freq, -f N Sample frequency [%f]\n", hz);
- fprintf(stderr, " --samples, -n N Stop sampling at [%d] samples\n", len);
- fprintf(stderr, " --scale-x, -x N Scale the graph horizontally [%f] \n", scale_x);
- fprintf(stderr, " --scale-y, -y N Scale the graph vertically [%f] \n", scale_y);
- fprintf(stderr, " --pss, -p Enable PSS graph (CPU intensive)\n");
- fprintf(stderr, " --entropy, -e Enable the entropy_avail graph\n");
- fprintf(stderr, " --output, -o [PATH] Path to output files [%s]\n", output_path);
- fprintf(stderr, " --init, -i [PATH] Path to init executable [%s]\n", init_path);
- fprintf(stderr, " --filter, -F Disable filtering of processes from the graph\n");
- fprintf(stderr, " that are of less importance or short-lived\n");
- fprintf(stderr, " --help, -h Display this message\n");
- fprintf(stderr, "See the installed README and bootchartd.conf.example for more information.\n");
- exit (EXIT_SUCCESS);
- break;
+ help();
+ return 0;
+ case '?':
+ if (getpid() != 1)
+ return -EINVAL;
+ else
+ return 0;
default:
- break;
+ assert_not_reached("Unhandled option code.");
}
+
+ if (arg_hz <= 0) {
+ log_error("Frequency needs to be > 0");
+ return -EINVAL;
}
- if (len > MAXSAMPLES) {
- fprintf(stderr, "Error: samples exceeds maximum\n");
- exit(EXIT_FAILURE);
+ return 1;
+}
+
+static void do_journal_append(char *file) {
+ struct iovec iovec[5];
+ int r, f, j = 0;
+ ssize_t n;
+ _cleanup_free_ char *bootchart_file = NULL, *bootchart_message = NULL,
+ *p = NULL;
+
+ bootchart_file = strappend("BOOTCHART_FILE=", file);
+ if (bootchart_file)
+ IOVEC_SET_STRING(iovec[j++], bootchart_file);
+
+ IOVEC_SET_STRING(iovec[j++], "MESSAGE_ID=9f26aa562cf440c2b16c773d0479b518");
+ IOVEC_SET_STRING(iovec[j++], "PRIORITY=7");
+ bootchart_message = strjoin("MESSAGE=Bootchart created: ", file, NULL);
+ if (bootchart_message)
+ IOVEC_SET_STRING(iovec[j++], bootchart_message);
+
+ p = malloc(9 + BOOTCHART_MAX);
+ if (!p) {
+ log_oom();
+ return;
}
- if (hz <= 0.0) {
- fprintf(stderr, "Error: Frequency needs to be > 0\n");
- exit(EXIT_FAILURE);
+ memcpy(p, "BOOTCHART=", 10);
+
+ f = open(file, O_RDONLY|O_CLOEXEC);
+ if (f < 0) {
+ log_error("Failed to read bootchart data: %m");
+ return;
}
+ n = loop_read(f, p + 10, BOOTCHART_MAX, false);
+ if (n < 0) {
+ log_error("Failed to read bootchart data: %s", strerror(-n));
+ close(f);
+ return;
+ }
+ close(f);
+
+ iovec[j].iov_base = p;
+ iovec[j].iov_len = 10 + n;
+ j++;
+
+ r = sd_journal_sendv(iovec, j);
+ if (r < 0)
+ log_error("Failed to send bootchart: %s", strerror(-r));
+}
+
+int main(int argc, char *argv[]) {
+ _cleanup_free_ char *build = NULL;
+ struct sigaction sig = {
+ .sa_handler = signal_handler,
+ };
+ struct ps_struct *ps;
+ char output_file[PATH_MAX];
+ char datestr[200];
+ time_t t = 0;
+ int r;
+ struct rlimit rlim;
+ bool has_procfs = false;
+
+ parse_conf();
+
+ r = parse_argv(argc, argv);
+ if (r <= 0)
+ return r == 0 ? EXIT_SUCCESS : EXIT_FAILURE;
/*
- * If the kernel executed us through init=/sbin/bootchartd, then
+ * If the kernel executed us through init=/usr/lib/systemd/systemd-bootchart, then
* fork:
* - parent execs executable specified via init_path[] (/sbin/init by default) as pid=1
* - child logs data
if (getpid() == 1) {
if (fork()) {
/* parent */
- execl(init_path, init_path, NULL);
+ execl(arg_init_path, arg_init_path, NULL);
}
}
+ argv[0][0] = '@';
+
+ rlim.rlim_cur = 4096;
+ rlim.rlim_max = 4096;
+ (void) setrlimit(RLIMIT_NOFILE, &rlim);
/* start with empty ps LL */
- ps_first = calloc(1, sizeof(struct ps_struct));
+ ps_first = new0(struct ps_struct, 1);
if (!ps_first) {
- perror("calloc(ps_struct)");
- exit(EXIT_FAILURE);
+ log_oom();
+ return EXIT_FAILURE;
}
/* handle TERM/INT nicely */
- memset(&sig, 0, sizeof(struct sigaction));
- sig.sa_handler = signal_handler;
sigaction(SIGHUP, &sig, NULL);
- interval = (1.0 / hz) * 1000000000.0;
+ interval = (1.0 / arg_hz) * 1000000000.0;
log_uptime();
+ if (graph_start < 0.0) {
+ fprintf(stderr,
+ "Failed to setup graph start time.\n\nThe system uptime "
+ "probably includes time that the system was suspended. "
+ "Use --rel to bypass this issue.\n");
+ exit (EXIT_FAILURE);
+ }
+
+ has_procfs = access("/proc/vmstat", F_OK) == 0;
+
+ LIST_HEAD_INIT(head);
+
/* main program loop */
- while (!exiting) {
+ for (samples = 0; !exiting && samples < arg_samples_len; samples++) {
int res;
double sample_stop;
struct timespec req;
double elapsed;
double timeleft;
- sampletime[samples] = gettime_ns();
+ sampledata = new0(struct list_sample_data, 1);
+ if (sampledata == NULL) {
+ log_oom();
+ return EXIT_FAILURE;
+ }
+
+ sampledata->sampletime = gettime_ns();
+ sampledata->counter = samples;
+
+ if (!of && (access(arg_output_path, R_OK|W_OK|X_OK) == 0)) {
+ t = time(NULL);
+ strftime(datestr, sizeof(datestr), "%Y%m%d-%H%M", localtime(&t));
+ snprintf(output_file, PATH_MAX, "%s/bootchart-%s.svg", arg_output_path, datestr);
+ of = fopen(output_file, "we");
+ }
+
+ if (sysfd < 0)
+ sysfd = open("/sys", O_RDONLY|O_CLOEXEC);
- /* wait for /proc to become available, discarding samples */
- if (!(graph_start > 0.0))
- log_uptime();
+ if (!build) {
+ if (parse_env_file("/etc/os-release", NEWLINE, "PRETTY_NAME", &build, NULL) == -ENOENT)
+ parse_env_file("/usr/lib/os-release", NEWLINE, "PRETTY_NAME", &build, NULL);
+ }
+
+ if (has_procfs)
+ log_sample(samples, &sampledata);
else
- log_sample(samples);
+ /* wait for /proc to become available, discarding samples */
+ has_procfs = access("/proc/vmstat", F_OK) == 0;
sample_stop = gettime_ns();
- elapsed = (sample_stop - sampletime[samples]) * 1000000000.0;
+ elapsed = (sample_stop - sampledata->sampletime) * 1000000000.0;
timeleft = interval - elapsed;
newint_s = (time_t)(timeleft / 1000000000.0);
* we'll lose all the missed samples and overrun our total
* time
*/
- if ((newint_ns > 0) || (newint_s > 0)) {
+ if (newint_ns > 0 || newint_s > 0) {
req.tv_sec = newint_s;
req.tv_nsec = newint_ns;
/* caught signal, probably HUP! */
break;
}
- perror("nanosleep()");
- exit (EXIT_FAILURE);
+ log_error("nanosleep() failed: %m");
+ exit(EXIT_FAILURE);
}
} else {
overrun++;
/* calculate how many samples we lost and scrap them */
- len = len + ((int)(newint_ns / interval));
+ arg_samples_len -= (int)(newint_ns / interval);
}
-
- samples++;
-
- if (samples > len)
- break;
-
+ LIST_PREPEND(link, head, sampledata);
}
/* do some cleanup, close fd's */
if (ps->smaps)
fclose(ps->smaps);
}
- closedir(proc);
- t = time(NULL);
- strftime(datestr, sizeof(datestr), "%Y%m%d-%H%M", localtime(&t));
- snprintf(output_file, PATH_MAX, "%s/bootchart-%s.svg", output_path, datestr);
+ if (!of) {
+ t = time(NULL);
+ strftime(datestr, sizeof(datestr), "%Y%m%d-%H%M", localtime(&t));
+ snprintf(output_file, PATH_MAX, "%s/bootchart-%s.svg", arg_output_path, datestr);
+ of = fopen(output_file, "we");
+ }
- of = fopen(output_file, "w");
if (!of) {
- perror("open output_file");
+ fprintf(stderr, "opening output file '%s': %m\n", output_file);
exit (EXIT_FAILURE);
}
- svg_do();
+ svg_do(build);
- fprintf(stderr, "bootchartd: Wrote %s\n", output_file);
- fclose(of);
+ fprintf(stderr, "systemd-bootchart wrote %s\n", output_file);
+
+ do_journal_append(output_file);
+
+ if (of)
+ fclose(of);
+
+ closedir(proc);
+ if (sysfd >= 0)
+ close(sysfd);
/* nitpic cleanups */
- ps = ps_first;
+ ps = ps_first->next_ps;
while (ps->next_ps) {
- struct ps_struct *old = ps;
+ struct ps_struct *old;
+
+ old = ps;
+ old->sample = ps->first;
ps = ps->next_ps;
+ while (old->sample->next) {
+ struct ps_sched_struct *oldsample = old->sample;
+
+ old->sample = old->sample->next;
+ free(oldsample);
+ }
+ free(old->cgroup);
free(old->sample);
free(old);
}
+ free(ps->cgroup);
free(ps->sample);
free(ps);
+ sampledata = head;
+ while (sampledata->link_prev) {
+ struct list_sample_data *old_sampledata = sampledata;
+ sampledata = sampledata->link_prev;
+ free(old_sampledata);
+ }
+ free(sampledata);
/* don't complain when overrun once, happens most commonly on 1st sample */
if (overrun > 1)
- fprintf(stderr, "bootchartd: Warning: sample time overrun %i times\n", overrun);
+ fprintf(stderr, "systemd-boochart: Warning: sample time overrun %i times\n", overrun);
return 0;
}
~ianmdlvl / elogind.git / blobdiff