From Fedora Project Wiki
No edit summary
 
(10 intermediate revisions by 2 users not shown)
Line 13: Line 13:
== Current status ==
== Current status ==
* Targeted release: Fedora 19
* Targeted release: Fedora 19
* Last updated: 2013-01-28
* Last updated: 2013-05-14
* Percentage of completion: 25.31459%
* Percentage of completion: 100%
* systemtap version 2.1 is due early February, aiming 2.2 soon thereafter for F19
* systemtap version 2.1 was released mid-February, available in rawhide & older fedoras
 
* systemtap version 2.2 released May 14
<!-- CHANGE THE "FedoraVersion" TEMPLATES ABOVE TO PLAIN NUMBERS WHEN YOU COMPLETE YOUR PAGE. -->


== Detailed Description ==
== Detailed Description ==
Systemtap 2.2 will introduce several new features:
Systemtap 2.2 will introduce some new features:


* Native Java per-method probing capabilities (using byteman)
* Native Java per-method probing capabilities (using byteman)


Plus new features coming from the impending systemtap 2.1:
Plus new features arrived in systemtap 2.1:


* A suite of error-explanation man pages.
* A suite of error-explanation man pages.
Line 78: Line 77:


[http://sourceware.org/systemtap/langref/ Systemtap Language Reference]
[http://sourceware.org/systemtap/langref/ Systemtap Language Reference]
[http://lukasberk.wordpress.com/2013/06/20/probing-java-methods-with-systemtap/ Probing Java Methods With Systemtap]
<!-- Is there upstream documentation on this feature, or notes you have written yourself?  Link to that material here so other interested developers can get involved. -->
<!-- Is there upstream documentation on this feature, or notes you have written yourself?  Link to that material here so other interested developers can get involved. -->


== Release Notes ==
== Release Notes ==
Systemtap routinely provides detailed release notes with each release, this trend is expected to continue and Fedora can use upstream's release notes in place.
Systemtap routinely provides detailed release notes with each release, this trend is expected to continue and Fedora can use upstream's release notes in place.
<!-- The Fedora Release Notes inform end-users about what is new in the release.  Examples of past release notes are here: http://docs.fedoraproject.org/release-notes/ -->
[http://sourceware.org/ml/systemtap/2013-q1/msg00130.html systemtap '''2.1''' release notes]
<!-- The release notes also help users know how to deal with platform changes such as ABIs/APIs, configuration or data file formats, or upgrade concerns. If there are any such changes involved in this feature, indicate them here. You can also link to upstream documentation if it satisfies this need.  This information forms the basis of the release notes edited by the documentation team and shipped with the release. -->


== Comments and Discussion ==
== Comments and Discussion ==
* See [[Talk:Features/Systemtap22]]  <!-- This adds a link to the "discussion" tab associated with your page.  This provides the ability to have ongoing comments or conversation without bogging down the main feature page -->
* See [[Talk:Features/Systemtap22]]  <!-- This adds a link to the "discussion" tab associated with your page.  This provides the ability to have ongoing comments or conversation without bogging down the main feature page -->


[[Category:FeatureReadyForWrangler]]
[[Category:FeatureAcceptedF19]]
<!-- When your feature page is completed and ready for review -->
<!-- When your feature page is completed and ready for review -->
<!-- remove Category:FeaturePageIncomplete and change it to Category:FeatureReadyForWrangler -->
<!-- remove Category:FeaturePageIncomplete and change it to Category:FeatureReadyForWrangler -->
<!-- After review, the feature wrangler will move your page to Category:FeatureReadyForFesco... if it still needs more work it will move back to Category:FeaturePageIncomplete-->
<!-- After review, the feature wrangler will move your page to Category:FeatureReadyForFesco... if it still needs more work it will move back to Category:FeaturePageIncomplete-->
<!-- A pretty picture of the page category usage is at: https://fedoraproject.org/wiki/Features/Policy/Process -->
<!-- A pretty picture of the page category usage is at: https://fedoraproject.org/wiki/Features/Policy/Process -->

Latest revision as of 18:14, 20 June 2013

Systemtap 2.2

Summary

A new feature release of Systemtap

Owner

  • Email: lberk@redhat.com fche@redhat.com

Current status

  • Targeted release: Fedora 19
  • Last updated: 2013-05-14
  • Percentage of completion: 100%
  • systemtap version 2.1 was released mid-February, available in rawhide & older fedoras
  • systemtap version 2.2 released May 14

Detailed Description

Systemtap 2.2 will introduce some new features:

  • Native Java per-method probing capabilities (using byteman)

Plus new features arrived in systemtap 2.1:

  • A suite of error-explanation man pages.
  • Perf event probes may now be read on demand
  • Perf event probes may now be bound to a specific task using the process name
  • The dyninst backend's runtime has been improved to allow much more concurrency when probing multi-threaded processes


Benefit to Fedora

This update further expands systemtap's native probing domain and capabilities, allowing for diagnosis and analysis of a greater variety of situations.

Scope

Only the systemtap packages would be modified.

How To Test

Testing will be completed by additional test cases within the systemtap testsuite. These tests are being added as the features are being developed.

User Experience

Users will be able to leverage the new features by specifying the expanded language syntax in their script or specified command line options.

Dependencies

  • Dyninst portions of systemtap rely on the dyninst rpm (maintained by Josh Stone)
  • Native, per-method java probing makes use of the byteman packge (maintained by Marek Goldmann)

Contingency Plan

In the event that not all the proposed features are contributed to upstream systemtap, then the then-latest version of systemtap will be used.

Documentation

Systemtap provides man pages for errors, warnings, build-in functions, probe points, and tapsets. In addition, systemtap packages examples, and helpful scripts, which describe proper coding style and notation.

Online Systemtap Documentation

Systemtap Beginners Guide

Systemtap Language Reference

Probing Java Methods With Systemtap

Release Notes

Systemtap routinely provides detailed release notes with each release, this trend is expected to continue and Fedora can use upstream's release notes in place. systemtap 2.1 release notes

Comments and Discussion