Re: [PATCH v2 0/3] trace: Add a trace backend for the recorder library

[Daniel P . Berrangé]

On Fri, Jul 03, 2020 at 12:37:02PM +0200, Christophe de Dinechin wrote:
> 
> 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.

Our .gitlab-ci.yml is going to start using the containers built from
tests/docker/dockerfiles. So if you add the package to the dockerfiles
that support it we can get coverage that way. I presume it'll need the
.gitlab-ci.yml modified to add the extra configure arg too.


Regards,
Daniel
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