diff options
| -rw-r--r-- | src/bootchart/bootchart.c | 65 |
1 files changed, 41 insertions, 24 deletions
diff --git a/src/bootchart/bootchart.c b/src/bootchart/bootchart.c index 84497cc29f..958a668aca 100644 --- a/src/bootchart/bootchart.c +++ b/src/bootchart/bootchart.c @@ -72,6 +72,13 @@ 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 */ bool arg_entropy = false; bool initcall = true; @@ -81,15 +88,15 @@ bool arg_show_cmdline = false; bool arg_show_cgroup = false; bool arg_pss = false; int samples; -int arg_samples_len = 500; /* we record len+1 (1 start sample) */ -double arg_hz = 25.0; /* 20 seconds log time */ -double arg_scale_x = 100.0; /* 100px = 1sec */ -double arg_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 arg_init_path[PATH_MAX] = "/sbin/init"; -char arg_output_path[PATH_MAX] = "/run/log"; +char arg_init_path[PATH_MAX] = DEFAULT_INIT; +char arg_output_path[PATH_MAX] = DEFAULT_OUTPUT; static void signal_handler(int sig) { if (sig++) @@ -135,6 +142,33 @@ static void parse_conf(void) { strscpy(arg_output_path, sizeof(arg_output_path), output); } +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); +} + static int parse_args(int argc, char *argv[]) { static struct option options[] = { {"rel", no_argument, NULL, 'r'}, @@ -209,24 +243,7 @@ static int parse_args(int argc, char *argv[]) { arg_entropy = true; break; case 'h': - fprintf(stderr, "Usage: %s [OPTIONS]\n\n", argv[0]); - fprintf(stderr, "Options:\n"); - fprintf(stderr, " -r, --rel Record time relative to recording\n"); - fprintf(stderr, " -f, --freq=FREQ Sample frequency [%f]\n", arg_hz); - fprintf(stderr, " -n, --samples=N Stop sampling at [%d] samples\n", arg_samples_len); - fprintf(stderr, " -x, --scale-x=N Scale the graph horizontally [%f] \n", arg_scale_x); - fprintf(stderr, " -y, --scale-y=N Scale the graph vertically [%f] \n", arg_scale_y); - fprintf(stderr, " -p, --pss Enable PSS graph (CPU intensive)\n"); - fprintf(stderr, " -e, --entropy Enable the entropy_avail graph\n"); - fprintf(stderr, " -o, --output=PATH Path to output files [%s]\n", arg_output_path); - fprintf(stderr, " -i, --init=PATH Path to init executable [%s]\n", arg_init_path); - fprintf(stderr, " -F, --no-filter Disable filtering of processes from the graph\n"); - fprintf(stderr, " that are of less importance or short-lived\n"); - fprintf(stderr, " -C, --cmdline Display the full command line with arguments\n"); - fprintf(stderr, " of processes, instead of only the process name\n"); - fprintf(stderr, " -c, --control-group Display process control group\n"); - fprintf(stderr, " -h, --help Display this message\n\n"); - fprintf(stderr, "See bootchart.conf for more information.\n"); + help(); exit (EXIT_SUCCESS); default: break; |