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September 27-30, 2021
Seattle, Washington, USA + Virtual
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Monday, September 27 • 4:50pm - 5:40pm
(IN-PERSON) What's New in KernelShark Two? - Steven Rostedt, VMware Inc

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KernelShark was created as the GUI front end to trace-cmd, which is a command line front end to the tracing infrastructure of the Linux kernel. But much has changed since its creation back in 2009. Yordan Karadzhov has taken over development and rewrote most of it to release KernelShark 1.0, that was mostly a better version with the same feature set as the original version. But it was still limited in its functionality. That's when Yordan changed the API to allow the GUI to be more flexible, and allow plugins to extend it beyond those limitations. With KernelShark 2.0, plugins can now show trace interactions between host and guests. Graphs may be added above the plots to show where the biggest latency lies between events. With the new customizations, KernelShark is looking to be a must have asset to any kernel development. This talk will review what KernelShark has always done, but then demonstrate the features of the new plugins that are only available in version 2. No need to be a kernel developer to enjoy this talk, it will stay at a very high level, but still be useful for the more experience developers.

Speakers
avatar for Steven Rostedt

Steven Rostedt

Open Source Engineer, VMware Inc
Steven Rostedt currently works for VMware in their Open Source Technology Center. He's the maintainer of the stable releases for the Real Time patch (PREEMPT_RT). He is also one of the original developers for the Real Time patch. Steven is the main developer and maintainer for ftrace... Read More →



Monday September 27, 2021 4:50pm - 5:40pm PDT
Elwha A
  Linux Systems, Tracing