Re: [MirageOS-devel] Mirage tracing

[Thomas Gazagnaire <thomas@xxxxxxxxxxxxxx>]

>>>>>>>> ( trace file: http://test.roscidus.com/static/log-x86.sexp )
>>>>>> 
>>>>>> That's pretty cool! That would be even cooler to have a 
>>>>>> HTML/CSS/javascript output on a "debug" port for any unikernel :-)

To continue on this, how do you generate the sexp currently? Is there a way to 
have a continuous profiling trace? Would be very cool to profile running 
unikernels ...

Thomas



>>>>> 
>>>>> It's using cairo for rendering, so producing png or svg output should
>>>>> be easy. My javascript skills aren't up to making it zoom smoothly in
>>>>> a browser though...
>>>> 
>>>> Regarding rendering, Daniel Buenzli's Vz library does have a js_of_ocaml
>>>> backend, so this may be a good place to get started on a browser backend
>>>> without the trouble of learning HTML/CSS:
>>>> 
>>>> http://erratique.ch/software/vg
>>> 
>>> I almost had it working with Vg, but there seemed to be no way to
>>> measure the text, which is needed to place the labels, so I ended up
>>> using HTML canvas directly. As it turned out, that API was a better
>>> fit for me anyway (being more similar to Cairo's API).
>>> 
>>> You can test it here:
>>> 
>>> http://test.roscidus.com/static/html_viewer.html?t_min=8249.530963&t_max=8249.534574
>>> 
>>> Scroll to zoom and drag to scroll as usual. Tested on Linux with
>>> Firefox and Chromium; let me know if it works elsewhere.
>>> 
>>> It doesn't support touch, so won't work on tablets (also, would
>>> probably be very slow).
>>> 
>>>> I'll send an update on Conduit soon, but Dave Scott has added sufficient
>>>> Cohttp support that we could expose a Cohttp/Vchan from a unikernel and
>>>> access it via Linux userspace.  In other words: you can use Chrome or 
>>>> Firefox
>>>> to access the debugging port without going through TCP, which is pretty
>>>> cool :-)
>>> 
>>>> -anil
>>> 
>>> 
>>> 
>>> --
>>> Dr Thomas Leonard        http://0install.net/
>>> GPG: 9242 9807 C985 3C07 44A6  8B9A AE07 8280 59A5 3CC1
>>> GPG: DA98 25AE CAD0 8975 7CDA  BD8E 0713 3F96 CA74 D8BA
>> 
> 
> 
> 
> -- 
> Dr Thomas Leonard        http://0install.net/
> GPG: 9242 9807 C985 3C07 44A6  8B9A AE07 8280 59A5 3CC1
> GPG: DA98 25AE CAD0 8975 7CDA  BD8E 0713 3F96 CA74 D8BA


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