fprintf(ofp, " -p, --pid PID If -u, apply on a specific PID\n");
fprintf(ofp, "\n");
fprintf(ofp, "Channel options:\n");
- fprintf(ofp, " --discard Discard event when buffers are full (default)\n");
- fprintf(ofp, " --overwrite Flight recorder mode\n");
- fprintf(ofp, " --subbuf-size Subbuffer size in bytes (default: 4096)\n");
- fprintf(ofp, " --num-subbuf Number of subbufers (default: 2)\n");
- fprintf(ofp, " --switch-timer Switch timer interval in usec (default: 0)\n");
- fprintf(ofp, " --read-timer Read timer interval in usec (default: 200)\n");
+ fprintf(ofp, " --discard Discard event when buffers are full%s\n",
+ DEFAULT_CHANNEL_OVERWRITE ? "" : " (default)");
+ fprintf(ofp, " --overwrite Flight recorder mode%s\n",
+ DEFAULT_CHANNEL_OVERWRITE ? " (default)" : "");
+ fprintf(ofp, " --subbuf-size Subbuffer size in bytes\n");
+ fprintf(ofp, " (default: %u, kernel default: %u)\n",
+ DEFAULT_CHANNEL_SUBBUF_SIZE,
+ DEFAULT_KERNEL_CHANNEL_SUBBUF_SIZE);
+ fprintf(ofp, " --num-subbuf Number of subbufers\n");
+ fprintf(ofp, " (default: %u, kernel default: %u)\n",
+ DEFAULT_CHANNEL_SUBBUF_NUM,
+ DEFAULT_KERNEL_CHANNEL_SUBBUF_NUM);
+ fprintf(ofp, " --switch-timer Switch timer interval in usec (default: %u)\n",
+ DEFAULT_CHANNEL_SWITCH_TIMER);
+ fprintf(ofp, " --read-timer Read timer interval in usec (default: %u)\n",
+ DEFAULT_CHANNEL_READ_TIMER);
fprintf(ofp, "\n");
}
*/
static void init_channel_config(void)
{
- chan.attr.overwrite = DEFAULT_CHANNEL_OVERWRITE;
- chan.attr.subbuf_size = DEFAULT_CHANNEL_SUBBUF_SIZE;
- chan.attr.num_subbuf = DEFAULT_CHANNEL_SUBBUF_NUM;
- chan.attr.switch_timer_interval = DEFAULT_CHANNEL_SWITCH_TIMER;
- chan.attr.read_timer_interval = DEFAULT_CHANNEL_READ_TIMER;
- chan.attr.output = DEFAULT_KERNEL_CHANNEL_OUTPUT;
+ if (opt_kernel) {
+ /* kernel default */
+ chan.attr.overwrite = DEFAULT_CHANNEL_OVERWRITE;
+ chan.attr.switch_timer_interval = DEFAULT_CHANNEL_SWITCH_TIMER;
+ chan.attr.read_timer_interval = DEFAULT_CHANNEL_READ_TIMER;
+
+ chan.attr.subbuf_size = DEFAULT_KERNEL_CHANNEL_SUBBUF_SIZE;
+ chan.attr.num_subbuf = DEFAULT_KERNEL_CHANNEL_SUBBUF_NUM;
+ chan.attr.output = DEFAULT_KERNEL_CHANNEL_OUTPUT;
+ } else {
+ /* default behavior, used by UST. */
+ chan.attr.overwrite = DEFAULT_CHANNEL_OVERWRITE;
+ chan.attr.switch_timer_interval = DEFAULT_CHANNEL_SWITCH_TIMER;
+ chan.attr.read_timer_interval = DEFAULT_CHANNEL_READ_TIMER;
+
+ chan.attr.subbuf_size = DEFAULT_CHANNEL_SUBBUF_SIZE;
+ chan.attr.num_subbuf = DEFAULT_CHANNEL_SUBBUF_NUM;
+ chan.attr.output = DEFAULT_CHANNEL_OUTPUT;
+ }
}
/*