Commit | Line | Data |
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641c659a MD |
1 | This is a demo application showing how to trace formatted strings into |
2 | LTTng-UST. | |
3 | ||
4 | The simplest command to trace the demo program are: | |
5 | ||
6 | lttng create | |
7 | lttng enable-event -u "lttng_ust_tracef:event" | |
8 | lttng start | |
9 | ./demo-tracef | |
10 | lttng stop | |
11 | lttng view | |
12 | lttng destroy | |
13 | ||
14 | The resulting lttng view output should look like this: | |
15 | ||
16 | [07:32:02.021045683] (+?.?????????) thinkos lttng_ust:tracef: { cpu_id = 2 }, { _msg_length = 46, msg = "This is a "mystring test" formatted 0 event 42" } | |
17 | [07:32:02.021062328] (+0.000016645) thinkos lttng_ust:tracef: { cpu_id = 2 }, { _msg_length = 46, msg = "This is a "mystring test" formatted 1 event 42" } | |
18 | [07:32:02.021066300] (+0.000003972) thinkos lttng_ust:tracef: { cpu_id = 2 }, { _msg_length = 46, msg = "This is a "mystring test" formatted 2 event 42" } | |
19 | [07:32:02.021069507] (+0.000003207) thinkos lttng_ust:tracef: { cpu_id = 2 }, { _msg_length = 46, msg = "This is a "mystring test" formatted 3 event 42" } | |
20 | [07:32:02.021072541] (+0.000003034) thinkos lttng_ust:tracef: { cpu_id = 2 }, { _msg_length = 46, msg = "This is a "mystring test" formatted 4 event 42" } |