fprintf(ofp, " --overwrite Flight recorder mode%s\n",
DEFAULT_CHANNEL_OVERWRITE ? " (default)" : "");
fprintf(ofp, " --subbuf-size SIZE Subbuffer size in bytes {+k,+M,+G}\n");
- fprintf(ofp, " (default: %zu, kernel default: %zu)\n",
- default_get_channel_subbuf_size(),
- default_get_kernel_channel_subbuf_size());
+ fprintf(ofp, " (default UST uid: %zu, UST pid: %zu, kernel: %zu, metadata: %zu)\n",
+ default_get_ust_uid_channel_subbuf_size(),
+ default_get_ust_pid_channel_subbuf_size(),
+ default_get_kernel_channel_subbuf_size(),
+ default_get_metadata_subbuf_size());
fprintf(ofp, " Rounded up to the next power of 2.\n");
fprintf(ofp, " --num-subbuf NUM Number of subbufers\n");
- fprintf(ofp, " (default: %u)\n",
- DEFAULT_CHANNEL_SUBBUF_NUM);
+ fprintf(ofp, " (default UST uid: %u, UST pid: %u, kernel: %u, metadata: %u)\n",
+ DEFAULT_UST_UID_CHANNEL_SUBBUF_NUM, DEFAULT_UST_PID_CHANNEL_SUBBUF_NUM,
+ DEFAULT_KERNEL_CHANNEL_SUBBUF_NUM, DEFAULT_METADATA_SUBBUF_NUM);
fprintf(ofp, " Rounded up to the next power of 2.\n");
- fprintf(ofp, " --switch-timer USEC Switch timer interval in usec (default: %u)\n",
- DEFAULT_CHANNEL_SWITCH_TIMER);
- fprintf(ofp, " --read-timer USEC Read timer interval in usec (UST default: %u, kernel default: %u)\n",
- DEFAULT_UST_CHANNEL_READ_TIMER, DEFAULT_KERNEL_CHANNEL_READ_TIMER);
+ fprintf(ofp, " --switch-timer USEC Switch timer interval in usec\n");
+ fprintf(ofp, " (default UST uid: %u, UST pid: %u, kernel: %u, metadata: %u)\n",
+ DEFAULT_UST_UID_CHANNEL_SWITCH_TIMER, DEFAULT_UST_PID_CHANNEL_SWITCH_TIMER,
+ DEFAULT_KERNEL_CHANNEL_SWITCH_TIMER, DEFAULT_METADATA_SWITCH_TIMER);
+ fprintf(ofp, " --read-timer USEC Read timer interval in usec.\n");
+ fprintf(ofp, " (default UST uid: %u, UST pid: %u, kernel: %u, metadata: %u)\n",
+ DEFAULT_UST_UID_CHANNEL_READ_TIMER, DEFAULT_UST_UID_CHANNEL_READ_TIMER,
+ DEFAULT_KERNEL_CHANNEL_READ_TIMER, DEFAULT_METADATA_READ_TIMER);
fprintf(ofp, " --output TYPE Channel output type (Values: %s, %s)\n",
output_mmap, output_splice);
+ fprintf(ofp, " (default UST uid: %s, UST pid: %s, kernel: %s, metadata: %s)\n",
+ DEFAULT_UST_UID_CHANNEL_OUTPUT == LTTNG_EVENT_MMAP ? output_mmap : output_splice,
+ DEFAULT_UST_PID_CHANNEL_OUTPUT == LTTNG_EVENT_MMAP ? output_mmap : output_splice,
+ DEFAULT_KERNEL_CHANNEL_OUTPUT == LTTNG_EVENT_MMAP ? output_mmap : output_splice,
+ DEFAULT_METADATA_OUTPUT == LTTNG_EVENT_MMAP ? output_mmap : output_splice);
fprintf(ofp, " --buffers-uid Use per UID buffer (-u only)\n");
fprintf(ofp, " --buffers-pid Use per PID buffer (-u only)\n");
fprintf(ofp, " --buffers-global Use shared buffer for the whole system (-k only)\n");
fprintf(ofp, " -C, --tracefile-size SIZE\n");
- fprintf(ofp, " Maximum size of each tracefile within a stream (in bytes).\n");
+ fprintf(ofp, " Maximum size of each tracefile within a stream (in bytes). 0 means unlimited.\n");
+ fprintf(ofp, " (default: %u)\n", DEFAULT_CHANNEL_TRACEFILE_SIZE);
fprintf(ofp, " -W, --tracefile-count COUNT\n");
fprintf(ofp, " Used in conjunction with -C option, this will limit the number\n");
- fprintf(ofp, " of files created to the specified count.\n");
+ fprintf(ofp, " of files created to the specified count. 0 means unlimited.\n");
+ fprintf(ofp, " (default: %u)\n", DEFAULT_CHANNEL_TRACEFILE_COUNT);
fprintf(ofp, "\n");
}
set_default_attr(&dom);
+ if (chan.attr.tracefile_size == 0 && chan.attr.tracefile_count) {
+ ERR("Missing option --tracefile-size. "
+ "A file count without a size won't do anything.");
+ ret = CMD_ERROR;
+ goto error;
+ }
+
if ((chan.attr.tracefile_size > 0) &&
(chan.attr.tracefile_size < chan.attr.subbuf_size)) {
WARN("Tracefile size rounded up from (%" PRIu64 ") to subbuffer size (%" PRIu64 ")",