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Feature #334

closed

Display configured filter

Added by Bernd Hufmann about 12 years ago. Updated over 8 years ago.

Status:
Resolved
Priority:
Low
Assignee:
-
Target version:
LTTng - 2.8
Start date:
09/13/2012
Due date:
% Done:

0%

Estimated time:

Description

LTTng Tools 2.1.0 offers the ability to configure filter when enabling events. It currently displays only that a filter is configured for command "lttng list <session>". It would be beneficial also to display the actual filter expression in the command output instead of displaying only [with filter].

Related issues 1 (0 open — 1 closed)

Related to LTTng-tools - Feature #630: 'lttng list session_name' should list the filters attached to the eventsResolved09/11/2013

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 #1

Updated by David Goulet about 12 years ago

  • Status changed from New to Confirmed
  • Target version set to 2.2

Since we are in RC mode right now for 2.1.x, I am tagging this feature request for 2.2.

Thanks

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 #2

Updated by David Goulet over 11 years ago

  • Target version deleted (2.2)
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 #3

Updated by Christian Babeux over 10 years ago

  • Assignee set to David Goulet
  • Target version set to 2.5
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 #4

Updated by David Goulet over 10 years ago

  • Assignee deleted (David Goulet)
  • Priority changed from Normal to Low
  • Target version changed from 2.5 to 2.6

I'm moving this feature for 2.6 unfortunately.

We are quite close to the rc1 of 2.5 and I feel uncomfortable adding this right now since it requires a lot of code and adding stuff to the public ABI/API. I usually prefer changes on the API done way before so people can play with it and we can make adjustment instead of rushing it.

I've started a branch containing some code for the feature but it's not working at all for now.

https://github.com/dgoulet/lttng-tools-dev/tree/bug334

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 #5

Updated by Jonathan Rajotte over 10 years ago

Just let me know when this is slowly getting to work. I'll match the MI as soon as possible. Don't hesitate to open a bug and assign it to.

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 #6

Updated by Jérémie Galarneau about 9 years ago

  • Target version changed from 2.6 to 2.8
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 #7

Updated by Jonathan Rajotte Julien over 8 years ago

  • Status changed from Confirmed to Resolved

Starting from 2.8 the filter expression is available on the command line and the mi.

E.g

Buffer type: per UID

Channels:
-------------
- channel0: [enabled]

    Attributes:
      overwrite mode: 0
      subbufers size: 131072
      number of subbufers: 4
      switch timer interval: 0
      read timer interval: 0
      trace file count: 0
      trace file size (bytes): 0
      discarded events: 0
      lost packets: 0
      output: mmap()

    Events:
      * (type: tracepoint) [enabled] [filter: 'test']


<events>
  <event>
    <name>*</name>
    <type>TRACEPOINT</type>
    <enabled>true</enabled>
    <filter_expression>test</filter_expression>
    <exclusions/>
  </event>
</events>

Cheers
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