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

[Christophe de Dinechin]

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)