Re: [Xen-users] Viewing xentrace output in kernel trace context

[Dario Faggioli <dario.faggioli@xxxxxxxxxx>]

On gio, 2013-11-21 at 18:55 -0800, Ian Webster wrote:
> Hi all,
> 
Hi,

> I'm doing some profiling of my hypervisor as it executes a workload.
>  I noticed periods of high latency and I want to figure out what's
> going on.
> 
If I can ask, where exactly (well, as exactly as you can tell :-P) and
what is it that you are trying to accomplish? I mean, for what kin of
workload or usecase you have too high latencies?
> 
> I'm running xentrace and a kernel trace as well with trace-cmd
> (ftrace).  I'd like to correlate the results.  For example,
> kernelshark is a great way to visualize kernel traces and I want to
> see what the kernel and hypervisor are both doing.  It would be
> helpful to see the xen trace events in there as well.  Is there an
> easy way to accomplish this?
> 
Not that I know of, but that would make be really cool (and it would
make a really cool GSoC or equivalent project)!

I'll add it to our list of open item / TODO list, let's see if anyone,
at some point, would be interested in picking it up.

Regards.
Dario

-- 
<<This happens because I choose it to happen!>> (Raistlin Majere)
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Dario Faggioli, Ph.D, http://about.me/dario.faggioli
Senior Software Engineer, Citrix Systems R&D Ltd., Cambridge (UK)

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