[lttng-dev] enable-channel switch timer not getting updated

Anand Neeli anand.neeli at gmail.com
Fri Jan 23 05:16:31 EST 2015


Hi All,
I'm using 2.4.1 version.
and i dont see switch timer being updated in output of "lttng list
<session>"
i'm using default subbuf-size and default sub-buf count.

output :

$ # lttng list mys4
Tracing session mys4: [active]
    Trace path: net4://127.0.0.1:5342/ [data: 5343]

=== Domain: UST global ===
Buffer type: per PID
Channels:
-------------
- myc4: [enabled]

    Attributes:
      overwrite mode: 0
      subbufers size: 4096
      number of subbufers: 4
*      switch timer interval: 0   <<<<<<<< doesnt show switch-timer*
      read timer interval: 0
      output: mmap()

    Events:
      * (type: tracepoint) [enabled] [has exclusions]


i used following commands to create session

lttng  --no-sessiond create mys4 --live 200000 -U net://localhost

lttng enable-channel myc4 --userspace --buffers-pid -s mys4
--tracefile-size 8388608 --tracefile-count 8 *--switch-timer 1000*

lttng enable-event --channel myc4 --userspace --all --exclude 'ust_libc:*'
-s mys4

lttng start mys4


Please let me know if i missed anything.

Thanks,

Anand Neeli
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