On 2020-06-30 at 14:59 CEST, Stefan Hajnoczi wrote... > On Fri, Jun 26, 2020 at 06:27:03PM +0200, Christophe de Dinechin wrote: >> The recorder library implements low-cost always-on tracing, with three >> usage models: >> >> 1. Flight recorder: Dump information on recent events in case of crash >> 2. Tracing: Individual traces can be enabled using environment variables >> 3. Real-time graphing / control, using the recorder_scope application >> >> This short series introduces a new "recorder" back-end which connects >> to the recorder. Traces using the recorder are intentionally "always on". >> An example is given of how the recorder can also be used separately >> from generated traces. This can be useful if you want to enable >> multiple related traces for a particular topic. >> >> This series requires a small makefile fix submitted earlier, included >> here for convenience. >> >> Christophe de Dinechin (3): >> Makefile: Compute libraries for libqemuutil.a and libvhost-user.a >> trace: Add support for recorder back-end >> trace: Example of "centralized" recorder tracing > > Please add a build to .travis.yml that enables recorder. That way we'll > catch build failures.
There is no recorder package in Xenial. > > Thanks, > Stefan -- Cheers, Christophe de Dinechin (IRC c3d)
