Tracing and Profiling: Difference between revisions
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This page contains basic information and simple examples to help you get started with each of the tracing and profiling tools available in Yocto. There is no overall structure - each tool is simply listed in alphabetical order. If you'd like to see more involved real-world use cases that | This page contains basic information and simple examples to help you get started with each of the tracing and profiling tools available in Yocto. There is no overall structure - each tool is simply listed in alphabetical order. If you'd like to see more involved real-world use cases that show how you might use these tools in concert, see [[Tracing and Profiling End-to-End Examples]]. | ||
Revision as of 22:49, 10 January 2011
Tracing and Profiling in Yocto
Yocto bundles a large number of tracing and profiling tools; many of them are available however only in 'sdk' images. So, in order to be able to access all of the tools described here, please first build and boot an 'sdk' image e.g.
$ bitbake poky-image-sdk-live
This page contains basic information and simple examples to help you get started with each of the tracing and profiling tools available in Yocto. There is no overall structure - each tool is simply listed in alphabetical order. If you'd like to see more involved real-world use cases that show how you might use these tools in concert, see Tracing and Profiling End-to-End Examples.
blktrace
blktrace is a tool for tracing and reporting low-level disk I/O. blktrace provides the tracing half of the equation; its output can be piped into the blkparse program, which renders the data in a human-readable form and does some basic analysis:
$ blktrace /dev/sda | blkparse -
systemtap
SystemTap is a system-wide script-based tracing and profiling tool.
