LTTng

http://lttng.org

• The successor of the Linux Trace Toolkit (LTT)

• Toolkit allowing to collect and analyze tracing information from the kernel, based on kernel markers and kernel tracepoints.

• So far, based on kernel patches, but doing its best to use in-tree solutions, and to be merged in the future.

• Very precise timestamps, very little overhead.

• Useful documentation on http://lttng.org/?q=node/2#manuals