PL-4:~ # ps -eaf | egrep "trace|lttng|TestApp" root 5628 1 0 10:50 ? 00:00:00 lttng-sessiond -d root 5715 1 0 10:50 ? 00:00:00 /opt/trace_ea/bin/TraceEa root 5725 1 0 10:50 ? 00:00:00 /opt/trace/sbin/trace_p root 5789 5715 0 10:50 ? 00:00:00 /opt/trace_ea/bin/TraceEa root 6785 5628 0 11:02 ? 00:00:00 lttng-consumerd --quiet -u --consumerd-cmd-sock /var/run/lttng/ustconsumerd64/command --consumerd-err-sock /var/run/lttng/ustconsumerd64/error root 10988 7858 0 12:10 pts/0 00:00:00 egrep trace|lttng|TestApp PL-4:~ # PL-4:~ # PL-4:~ # ps -eaf | egrep "trace|lttng|demo" root 5628 1 0 10:50 ? 00:00:00 lttng-sessiond -d root 5715 1 0 10:50 ? 00:00:00 /opt/trace_ea/bin/TraceEa root 5725 1 0 10:50 ? 00:00:00 /opt/trace/sbin/trace_p root 5789 5715 0 10:50 ? 00:00:00 /opt/trace_ea/bin/TraceEa root 6785 5628 0 11:02 ? 00:00:00 lttng-consumerd --quiet -u --consumerd-cmd-sock /var/run/lttng/ustconsumerd64/command --consumerd-err-sock /var/run/lttng/ustconsumerd64/error root 11006 7858 0 12:10 pts/0 00:00:00 egrep trace|lttng|demo PL-4:~ # PL-4:~ # PL-4:~ # lttng list Currently no available tracing session PL-4:~ # PL-4:~ # PL-4:~ # lttng list -u UST events: ------------- None PL-4:~ # PL-4:~ # PL-4:~ # cd /cluster/temp/tdlt/ PL-4:/cluster/temp/tdlt # ll total 296 -rwxr-xr-x 1 root root 81735 Aug 15 00:02 TestApp_Fork1_noLttng -rwxr-xr-x 1 root root 87926 Aug 8 09:38 TestApp_Thread100 drwxr-xr-x 4 root root 4096 Aug 15 00:00 TestApp_bin_for_ProgrammerGuide -rw-r--r-- 1 root root 119 Aug 8 16:58 bashrc_for_Stability -rwxr-xr-x 1 root root 98840 Aug 15 00:02 liblttng-ust-provider-TestApp-Fork1.so drwxr-xr-x 2 root root 4096 Aug 15 12:06 lttng_demo_bin -rw-r--r-- 1 root root 255 Aug 13 15:43 prof1.txt PL-4:/cluster/temp/tdlt # cd lttng_demo_bin/ PL-4:/cluster/temp/tdlt/lttng_demo_bin # PL-4:/cluster/temp/tdlt/lttng_demo_bin # PL-4:/cluster/temp/tdlt/lttng_demo_bin # ll total 96 -rwxr-xr-x 1 root root 25142 Aug 15 12:06 demo -rwxr-xr-x 1 root root 119 Aug 15 12:06 demo-trace -rwxr-xr-x 1 root root 40243 Aug 15 12:06 liblttng-ust-provider-ust-tests-demo.so -rwxr-xr-x 1 root root 24012 Aug 15 12:06 liblttng-ust-provider-ust-tests-demo3.so PL-4:/cluster/temp/tdlt/lttng_demo_bin # PL-4:/cluster/temp/tdlt/lttng_demo_bin # PL-4:/cluster/temp/tdlt/lttng_demo_bin # ./demo-trace 500 & [1] 11067 PL-4:/cluster/temp/tdlt/lttng_demo_bin # Demo program starting. PL-4:/cluster/temp/tdlt/lttng_demo_bin # PL-4:/cluster/temp/tdlt/lttng_demo_bin # lttng list -u UST events: ------------- PID: 11068 - Name: ./demo ust_tests_demo2:loop (loglevel: TRACE_WARNING (4)) (type: tracepoint) ust_tests_demo:done (loglevel: TRACE_CRIT (2)) (type: tracepoint) ust_tests_demo:starting (loglevel: TRACE_CRIT (2)) (type: tracepoint) ust_tests_demo3:done (loglevel: TRACE_WARNING (4)) (type: tracepoint) PL-4:/cluster/temp/tdlt/lttng_demo_bin # PL-4:/cluster/temp/tdlt/lttng_demo_bin # pkill demo [1]+ Terminated ./demo-trace 500 PL-4:/cluster/temp/tdlt/lttng_demo_bin # PL-4:/cluster/temp/tdlt/lttng_demo_bin # PL-4:/cluster/temp/tdlt/lttng_demo_bin # ps -eaf | egrep "trace|lttng|demo" root 5628 1 0 10:50 ? 00:00:00 lttng-sessiond -d root 5715 1 0 10:50 ? 00:00:00 /opt/trace_ea/bin/TraceEa root 5725 1 0 10:50 ? 00:00:00 /opt/trace/sbin/trace_p root 5789 5715 0 10:50 ? 00:00:00 /opt/trace_ea/bin/TraceEa root 6785 5628 0 11:02 ? 00:00:00 lttng-consumerd --quiet -u --consumerd-cmd-sock /var/run/lttng/ustconsumerd64/command --consumerd-err-sock /var/run/lttng/ustconsumerd64/error root 11105 7858 0 12:12 pts/0 00:00:00 egrep trace|lttng|demo PL-4:/cluster/temp/tdlt/lttng_demo_bin # PL-4:/cluster/temp/tdlt/lttng_demo_bin # PL-4:/cluster/temp/tdlt/lttng_demo_bin # lttng create ses1 Session ses1 created. Traces will be written in /root/lttng-traces/ses1-20120815-121256 PL-4:/cluster/temp/tdlt/lttng_demo_bin # lttng enable-event ust_tests_demo* -u UST event ust_tests_demo* created in channel channel0 PL-4:/cluster/temp/tdlt/lttng_demo_bin # PL-4:/cluster/temp/tdlt/lttng_demo_bin # PL-4:/cluster/temp/tdlt/lttng_demo_bin # lttng list Available tracing sessions: 1) ses1 (/root/lttng-traces/ses1-20120815-121256) [inactive] Use lttng list for more details PL-4:/cluster/temp/tdlt/lttng_demo_bin # PL-4:/cluster/temp/tdlt/lttng_demo_bin # lttng list ses1 Tracing session ses1: [inactive] Trace path: /root/lttng-traces/ses1-20120815-121256 === Domain: UST global === Channels: ------------- - channel0: [enabled] Attributes: overwrite mode: 0 subbufers size: 4096 number of subbufers: 4 switch timer interval: 0 read timer interval: 200 output: mmap() Events: ust_tests_demo* (type: tracepoint) [enabled] PL-4:/cluster/temp/tdlt/lttng_demo_bin # PL-4:/cluster/temp/tdlt/lttng_demo_bin # PL-4:/cluster/temp/tdlt/lttng_demo_bin # LTTNG_UST_DEBUG=1 ./demo-trace 80 & [1] 11262 PL-4:/cluster/temp/tdlt/lttng_demo_bin # liblttng_ust_tracepoint[11263/11263]: just registered a tracepoints section from 0x7f74158a4bf8 and having 1 tracepoints (in tracepoint_register_lib() at tracepoint.c:639) liblttng_ust_tracepoint[11263/11263]: registered tracepoint: lttng_ust:metadata (in tracepoint_register_lib() at tracepoint.c:644) libust[11263/11263]: just registered probe lttng_ust containing 1 events (in ltt_probe_register() at ltt-probes.c:109) libust[11263/11263]: Registered event probe "lttng_ust:metadata" with signature "const char *, str" (in ltt_probe_register() at ltt-probes.c:118) libust[11263/11263]: LTT : ltt ring buffer client init (in ltt_ring_buffer_metadata_client_init() at ltt-ring-buffer-metadata-client.h:334) libust[11263/11263]: LTT : ltt ring buffer client init (in ltt_ring_buffer_client_overwrite_init() at ltt-ring-buffer-client.h:584) libust[11263/11263]: LTT : ltt ring buffer client init (in ltt_ring_buffer_client_discard_init() at ltt-ring-buffer-client.h:584) libust[11263/11265]: Info: sessiond not accepting connections to local apps socket (in ust_listener_thread() at lttng-ust-comm.c:716) libust[11263/11265]: Waiting for local apps sessiond (in wait_for_sessiond() at lttng-ust-comm.c:638) libust[11263/11264]: message received (in ust_listener_thread() at lttng-ust-comm.c:783) libust[11263/11264]: message successfully sent (in send_reply() at lttng-ust-comm.c:217) libust[11263/11264]: message received (in ust_listener_thread() at lttng-ust-comm.c:783) libust[11263/11264]: message successfully sent (in send_reply() at lttng-ust-comm.c:217) libust[11263/11264]: message received (in ust_listener_thread() at lttng-ust-comm.c:783) libust[11263/11264]: message successfully sent (in send_reply() at lttng-ust-comm.c:217) libust[11263/11264]: message received (in ust_listener_thread() at lttng-ust-comm.c:783) libust[11263/11264]: message successfully sent (in send_reply() at lttng-ust-comm.c:217) libust[11263/11264]: message received (in ust_listener_thread() at lttng-ust-comm.c:783) libust[11263/11264]: message successfully sent (in send_reply() at lttng-ust-comm.c:217) libust[11263/11263]: just registered probe ust_tests_demo3 containing 1 events (in ltt_probe_register() at ltt-probes.c:109) libust[11263/11263]: Registered event probe "ust_tests_demo3:done" with signature "int, value" (in ltt_probe_register() at ltt-probes.c:118) liblttng_ust_tracepoint[11263/11263]: Registering probe to tracepoint ust_tests_demo3:done (in __tracepoint_probe_register() at tracepoint.c:427) libust[11263/11263]: just registered probe ust_tests_demo2 containing 1 events (in ltt_probe_register() at ltt-probes.c:109) libust[11263/11263]: Registered event probe "ust_tests_demo2:loop" with signature "int, anint, int, netint, long *, values, char *, text, size_t, textlen, double, doublearg, float, floatarg" (in ltt_probe_register() at ltt-probes.c:118) liblttng_ust_tracepoint[11263/11263]: Registering probe to tracepoint ust_tests_demo2:loop (in __tracepoint_probe_register() at tracepoint.c:427) libust[11263/11263]: just registered probe ust_tests_demo containing 2 events (in ltt_probe_register() at ltt-probes.c:109) libust[11263/11263]: Registered event probe "ust_tests_demo:starting" with signature "int, value" (in ltt_probe_register() at ltt-probes.c:118) liblttng_ust_tracepoint[11263/11263]: Registering probe to tracepoint ust_tests_demo:starting (in __tracepoint_probe_register() at tracepoint.c:427) libust[11263/11263]: Registered event probe "ust_tests_demo:done" with signature "int, value" (in ltt_probe_register() at ltt-probes.c:118) liblttng_ust_tracepoint[11263/11263]: Registering probe to tracepoint ust_tests_demo:done (in __tracepoint_probe_register() at tracepoint.c:427) liblttng_ust_tracepoint[11263/11263]: just registered a tracepoints section from 0x602158 and having 4 tracepoints (in tracepoint_register_lib() at tracepoint.c:639) liblttng_ust_tracepoint[11263/11263]: registered tracepoint: ust_tests_demo3:done (in tracepoint_register_lib() at tracepoint.c:644) liblttng_ust_tracepoint[11263/11263]: registered tracepoint: ust_tests_demo2:loop (in tracepoint_register_lib() at tracepoint.c:644) liblttng_ust_tracepoint[11263/11263]: registered tracepoint: ust_tests_demo:done (in tracepoint_register_lib() at tracepoint.c:644) liblttng_ust_tracepoint[11263/11263]: registered tracepoint: ust_tests_demo:starting (in tracepoint_register_lib() at tracepoint.c:644) Demo program starting. PL-4:/cluster/temp/tdlt/lttng_demo_bin # PL-4:/cluster/temp/tdlt/lttng_demo_bin # PL-4:/cluster/temp/tdlt/lttng_demo_bin # lttng list -u libust[11263/11264]: message received (in ust_listener_thread() at lttng-ust-comm.c:783) libust[11263/11264]: message successfully sent (in send_reply() at lttng-ust-comm.c:217) libust[11263/11264]: message received (in ust_listener_thread() at lttng-ust-comm.c:783) libust[11263/11264]: message successfully sent (in send_reply() at lttng-ust-comm.c:217) libust[11263/11264]: message received (in ust_listener_thread() at lttng-ust-comm.c:783) libust[11263/11264]: message successfully sent (in send_reply() at lttng-ust-comm.c:217) libust[11263/11264]: message received (in ust_listener_thread() at lttng-ust-comm.c:783) libust[11263/11264]: message successfully sent (in send_reply() at lttng-ust-comm.c:217) libust[11263/11264]: message received (in ust_listener_thread() at lttng-ust-comm.c:783) libust[11263/11264]: message successfully sent (in send_reply() at lttng-ust-comm.c:217) libust[11263/11264]: message received (in ust_listener_thread() at lttng-ust-comm.c:783) libust[11263/11264]: message successfully sent (in send_reply() at lttng-ust-comm.c:217) UST events: ------------- PID: 11263 - Name: ./demo ust_tests_demo2:loop (loglevel: TRACE_WARNING (4)) (type: tracepoint) ust_tests_demo:done (loglevel: TRACE_CRIT (2)) (type: tracepoint) ust_tests_demo:starting (loglevel: TRACE_CRIT (2)) (type: tracepoint) ust_tests_demo3:done (loglevel: TRACE_WARNING (4)) (type: tracepoint) PL-4:/cluster/temp/tdlt/lttng_demo_bin # PL-4:/cluster/temp/tdlt/lttng_demo_bin # PL-4:/cluster/temp/tdlt/lttng_demo_bin # lttng start libust[11263/11264]: message received (in ust_listener_thread() at lttng-ust-comm.c:783) liblttng_ust_tracepoint[11263/11264]: Registering probe to tracepoint lttng_ust:metadata (in __tracepoint_probe_register() at tracepoint.c:427) libust[11263/11264]: message successfully sent (in send_reply() at lttng-ust-comm.c:217) libust[11263/11264]: message received (in ust_listener_thread() at lttng-ust-comm.c:783) libust[11263/11264]: message successfully sent (in send_reply() at lttng-ust-comm.c:217) libust[11263/11264]: message received (in ust_listener_thread() at lttng-ust-comm.c:783) libust[11263/11264]: message successfully sent (in send_reply() at lttng-ust-comm.c:217) libust[11263/11264]: message received (in ust_listener_thread() at lttng-ust-comm.c:783) libust[11263/11264]: message successfully sent (in send_reply() at lttng-ust-comm.c:217) libust[11263/11264]: message received (in ust_listener_thread() at lttng-ust-comm.c:783) libust[11263/11264]: message successfully sent (in send_reply() at lttng-ust-comm.c:217) libust[11263/11264]: message received (in ust_listener_thread() at lttng-ust-comm.c:783) libust[11263/11264]: message successfully sent (in send_reply() at lttng-ust-comm.c:217) libust[11263/11264]: message received (in ust_listener_thread() at lttng-ust-comm.c:783) libust[11263/11264]: message successfully sent (in send_reply() at lttng-ust-comm.c:217) libust[11263/11264]: message received (in ust_listener_thread() at lttng-ust-comm.c:783) libust[11263/11264]: message successfully sent (in send_reply() at lttng-ust-comm.c:217) libust[11263/11264]: message received (in ust_listener_thread() at lttng-ust-comm.c:783) libust[11263/11264]: message successfully sent (in send_reply() at lttng-ust-comm.c:217) libust[11263/11264]: message received (in ust_listener_thread() at lttng-ust-comm.c:783) libust[11263/11264]: message successfully sent (in send_reply() at lttng-ust-comm.c:217) libust[11263/11264]: message received (in ust_listener_thread() at lttng-ust-comm.c:783) libust[11263/11264]: message successfully sent (in send_reply() at lttng-ust-comm.c:217) libust[11263/11264]: message received (in ust_listener_thread() at lttng-ust-comm.c:783) libust[11263/11264]: message successfully sent (in send_reply() at lttng-ust-comm.c:217) libust[11263/11264]: message received (in ust_listener_thread() at lttng-ust-comm.c:783) libust[11263/11264]: message successfully sent (in send_reply() at lttng-ust-comm.c:217) libust[11263/11264]: message received (in ust_listener_thread() at lttng-ust-comm.c:783) libust[11263/11264]: message successfully sent (in send_reply() at lttng-ust-comm.c:217) libust[11263/11264]: message received (in ust_listener_thread() at lttng-ust-comm.c:783) libust[11263/11264]: message successfully sent (in send_reply() at lttng-ust-comm.c:217) libust[11263/11264]: message received (in ust_listener_thread() at lttng-ust-comm.c:783) libust[11263/11264]: message successfully sent (in send_reply() at lttng-ust-comm.c:217) libust[11263/11264]: message received (in ust_listener_thread() at lttng-ust-comm.c:783) libust[11263/11264]: message successfully sent (in send_reply() at lttng-ust-comm.c:217) libust[11263/11264]: message received (in ust_listener_thread() at lttng-ust-comm.c:783) libust[11263/11264]: message successfully sent (in send_reply() at lttng-ust-comm.c:217) libust[11263/11264]: message received (in ust_listener_thread() at lttng-ust-comm.c:783) libust[11263/11264]: message successfully sent (in send_reply() at lttng-ust-comm.c:217) Tracing started for session ses1 PL-4:/cluster/temp/tdlt/lttng_demo_bin # PL-4:/cluster/temp/tdlt/lttng_demo_bin # PL-4:/cluster/temp/tdlt/lttng_demo_bin # lttng list Available tracing sessions: 1) ses1 (/root/lttng-traces/ses1-20120815-121256) [active] Use lttng list for more details PL-4:/cluster/temp/tdlt/lttng_demo_bin # PL-4:/cluster/temp/tdlt/lttng_demo_bin # PL-4:/cluster/temp/tdlt/lttng_demo_bin # lttng list -u libust[11263/11264]: message received (in ust_listener_thread() at lttng-ust-comm.c:783) libust[11263/11264]: message successfully sent (in send_reply() at lttng-ust-comm.c:217) libust[11263/11264]: message received (in ust_listener_thread() at lttng-ust-comm.c:783) libust[11263/11264]: message successfully sent (in send_reply() at lttng-ust-comm.c:217) libust[11263/11264]: message received (in ust_listener_thread() at lttng-ust-comm.c:783) libust[11263/11264]: message successfully sent (in send_reply() at lttng-ust-comm.c:217) libust[11263/11264]: message received (in ust_listener_thread() at lttng-ust-comm.c:783) libust[11263/11264]: message successfully sent (in send_reply() at lttng-ust-comm.c:217) libust[11263/11264]: message received (in ust_listener_thread() at lttng-ust-comm.c:783) libust[11263/11264]: message successfully sent (in send_reply() at lttng-ust-comm.c:217) libust[11263/11264]: message received (in ust_listener_thread() at lttng-ust-comm.c:783) libust[11263/11264]: message successfully sent (in send_reply() at lttng-ust-comm.c:217) UST events: ------------- PID: 11263 - Name: ./demo ust_tests_demo2:loop (loglevel: TRACE_WARNING (4)) (type: tracepoint) ust_tests_demo:done (loglevel: TRACE_CRIT (2)) (type: tracepoint) ust_tests_demo:starting (loglevel: TRACE_CRIT (2)) (type: tracepoint) ust_tests_demo3:done (loglevel: TRACE_WARNING (4)) (type: tracepoint) PL-4:/cluster/temp/tdlt/lttng_demo_bin # PL-4:/cluster/temp/tdlt/lttng_demo_bin # PL-4:/cluster/temp/tdlt/lttng_demo_bin # ps -eaf | egrep "trace|lttng|demo" root 5628 1 0 10:50 ? 00:00:00 lttng-sessiond -d root 5715 1 0 10:50 ? 00:00:00 /opt/trace_ea/bin/TraceEa root 5725 1 0 10:50 ? 00:00:00 /opt/trace/sbin/trace_p root 5789 5715 0 10:50 ? 00:00:00 /opt/trace_ea/bin/TraceEa root 6785 5628 0 11:02 ? 00:00:00 lttng-consumerd --quiet -u --consumerd-cmd-sock /var/run/lttng/ustconsumerd64/command --consumerd-err-sock /var/run/lttng/ustconsumerd64/error root 11262 7858 0 12:14 pts/0 00:00:00 /bin/sh ./demo-trace 80 root 11263 11262 0 12:14 pts/0 00:00:00 ./demo 80 root 11321 7858 0 12:15 pts/0 00:00:00 egrep trace|lttng|demo PL-4:/cluster/temp/tdlt/lttng_demo_bin # PL-4:/cluster/temp/tdlt/lttng_demo_bin # PL-4:/cluster/temp/tdlt/lttng_demo_bin # Tracing... done. liblttng_ust_tracepoint[11263/11263]: just unregistered a tracepoints section from 0x602158 (in tracepoint_unregister_lib() at tracepoint.c:679) libust[11263/11263]: just unregistered probe ust_tests_demo (in ltt_probe_unregister() at ltt-probes.c:131) libust[11263/11263]: just unregistered probe ust_tests_demo2 (in ltt_probe_unregister() at ltt-probes.c:131) libust[11263/11263]: just unregistered probe ust_tests_demo3 (in ltt_probe_unregister() at ltt-probes.c:131) liblttng_ust_tracepoint[11263/11263]: Un-registering probe from tracepoint lttng_ust:metadata (in __tracepoint_probe_unregister() at tracepoint.c:470) liblttng_ust_tracepoint[11263/11263]: Un-registering probe from tracepoint ust_tests_demo:done (in __tracepoint_probe_unregister() at tracepoint.c:470) liblttng_ust_tracepoint[11263/11263]: Un-registering probe from tracepoint ust_tests_demo:starting (in __tracepoint_probe_unregister() at tracepoint.c:470) liblttng_ust_tracepoint[11263/11263]: Un-registering probe from tracepoint ust_tests_demo2:loop (in __tracepoint_probe_unregister() at tracepoint.c:470) liblttng_ust_tracepoint[11263/11263]: Un-registering probe from tracepoint ust_tests_demo3:done (in __tracepoint_probe_unregister() at tracepoint.c:470) libust[11263/11263]: LTT : ltt ring buffer client exit (in ltt_ring_buffer_client_discard_exit() at ltt-ring-buffer-client.h:590) libust[11263/11263]: LTT : ltt ring buffer client exit (in ltt_ring_buffer_client_overwrite_exit() at ltt-ring-buffer-client.h:590) libust[11263/11263]: LTT : ltt ring buffer client exit (in ltt_ring_buffer_metadata_client_exit() at ltt-ring-buffer-metadata-client.h:340) libust[11263/11263]: just unregistered probe lttng_ust (in ltt_probe_unregister() at ltt-probes.c:131) liblttng_ust_tracepoint[11263/11263]: just unregistered a tracepoints section from 0x7f74158a4bf8 (in tracepoint_unregister_lib() at tracepoint.c:679) [1]+ Done LTTNG_UST_DEBUG=1 ./demo-trace 80 PL-4:/cluster/temp/tdlt/lttng_demo_bin # ps -eaf | egrep "trace|lttng|demo" root 5628 1 0 10:50 ? 00:00:00 lttng-sessiond -d root 5715 1 0 10:50 ? 00:00:00 /opt/trace_ea/bin/TraceEa root 5725 1 0 10:50 ? 00:00:00 /opt/trace/sbin/trace_p root 5789 5715 0 10:50 ? 00:00:00 /opt/trace_ea/bin/TraceEa root 6785 5628 0 11:02 ? 00:00:00 lttng-consumerd --quiet -u --consumerd-cmd-sock /var/run/lttng/ustconsumerd64/command --consumerd-err-sock /var/run/lttng/ustconsumerd64/error root 11376 7858 0 12:16 pts/0 00:00:00 egrep trace|lttng|demo PL-4:/cluster/temp/tdlt/lttng_demo_bin # PL-4:/cluster/temp/tdlt/lttng_demo_bin # PL-4:/cluster/temp/tdlt/lttng_demo_bin # lttng stop Tracing stopped for session ses1 PL-4:/cluster/temp/tdlt/lttng_demo_bin # PL-4:/cluster/temp/tdlt/lttng_demo_bin # PL-4:/cluster/temp/tdlt/lttng_demo_bin # lttng list Available tracing sessions: 1) ses1 (/root/lttng-traces/ses1-20120815-121256) [inactive] Use lttng list for more details PL-4:/cluster/temp/tdlt/lttng_demo_bin # PL-4:/cluster/temp/tdlt/lttng_demo_bin # PL-4:/cluster/temp/tdlt/lttng_demo_bin # cd /root/lttng-traces/ PL-4:~/lttng-traces # ll total 0 drwxrwx--- 3 root root 60 Aug 15 11:10 mysession-20120815-110912 drwxrwx--- 3 root root 60 Aug 15 12:13 ses1-20120815-121256 PL-4:~/lttng-traces # PL-4:~/lttng-traces # PL-4:~/lttng-traces # ll ses1-20120815-121256/ust/ total 0 drwxrwx--- 2 root root 40 Aug 15 12:15 demo-11263-20120815-121452 PL-4:~/lttng-traces # ll ses1-20120815-121256/ust/demo-11263-20120815-121452/ total 0 PL-4:~/lttng-traces # PL-4:~/lttng-traces # PL-4:~/lttng-traces # lttng -h LTTng Trace Control 2.0.4 - Annedd'ale usage: lttng [OPTIONS] Options: -h, --help Show this help --list-options Simple listing of lttng options --list-commands Simple listing of lttng commands -v, --verbose Increase verbosity -q, --quiet Quiet mode -g, --group NAME Unix tracing group name. (default: tracing) -n, --no-sessiond Don't spawn a session daemon --sessiond-path PATH Session daemon full path Commands: add-context Add context to event and/or channel calibrate Quantify LTTng overhead create Create tracing session destroy Tear down tracing session enable-channel Enable tracing channel enable-event Enable tracing event disable-channel Disable tracing channel disable-event Disable tracing event list List possible tracing options set-session Set current session name start Start tracing stop Stop tracing version Show version information view Start trace viewer Each command also has its own -h, --help option. Please see the lttng(1) man page for full documentation. See http://lttng.org for updates, bug reports and news. PL-4:~/lttng-traces # PL-4:~/lttng-traces # PL-4:~/lttng-traces #