Re: [PATCH spice-common] Integrate recorder library

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> On 27 Nov 2018, at 15:38, Christophe Fergeau <cfergeau@xxxxxxxxxx> wrote:
> 
> On Thu, Nov 22, 2018 at 05:58:01AM -0500, Frediano Ziglio wrote:
>>> 
>>> Hey,
>>> 
>>> On Mon, Nov 19, 2018 at 08:46:04PM +0000, Frediano Ziglio wrote:
>>>> From: Christophe de Dinechin <dinechin@xxxxxxxxxx>
>>>> 
>>>> Allow to use recorder library. See https://github.com/c3d/recorder for
>>>> details.
>>>> The main usage will be to collect statistics while the programs will run.
>>>> By default the recorder will be disabled at compile time.
>>>> Both autoconf and Meson are supported.
>>>> Autoconf requires the addition of SPICE_CHECK_RECORDER call in
>>>> configure.ac.
>>>> Meson requires to add recorder option.
>>> 
>>> Just by reading that log, I wonder why this is different than what was
>>> discussed on the list 18 months ago? For example
>>> https://lists.freedesktop.org/archives/spice-devel/2017-June/037952.html
>>> 
>> 
>> Writing an updated commit message.
>> 
>> One of the reason to discard different solutions (SystemTap, LTTng) was portability.
>> We support Linux and Windows mainly. GLib structured was not also ported to Windows.
>> 
>> Although I think some proper simple printf-style and classic filtering (grep)
>> would be enough I think most of people preferred to have some ready tools
>> to collect and display.
> 
> Ok, so in short, portability (availability on Windows and Linux) and
> display tools were 2 important requirements.
> 
>> 
>>> I would add a few followup patches adding a few statistics as an example
>>> of how it would be used, this would probably help with the discussion.
>>> 
>> 
>> Well, the current include is not wrapping much so the online documentation
>> at https://github.com/c3d/recorder still apply.
> 
> I'm not really asking how to use it, but it's very odd to have a patch
> adding a new dep without seeing any accompanying patches which need that
> dependency.

You may want to look there: https://github.com/c3d/spice/tree/smart-streaming.
I’m surprised you are not aware of this proposal.


Thanks
Christophe

> 
> Christophe
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