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Re: A KernelShark plugin for Xen traces analysis ​



On Wed, 2021-04-14 at 19:11 +0100, Andrew Cooper wrote:
> On 14/04/2021 18:31, Dario Faggioli wrote:
> > > A couple of questions.  Which Xen libraries do you currently use
> > > map
> > > the
> > > frames?
> > > 
> > Err... If I understood the question none, as the plugin loads and
> > parses a file, as it is produced by `xentrace`. :-)
> > 
> > But maybe I didn't understand the question?
> 
> Ah no - that answer's my question.  I'd blindly assumed that the
> plugin
> was talking directly to Xen to obtain the tracebuffer.
> 
Right. No, KernelShark, for Linux, "just" reads trace-data file
produced by trace-cmd. So we adopted the same model and made it "just"
read a trace-data file, in our case produced by xentrace.

Regards
-- 
Dario Faggioli, Ph.D
http://about.me/dario.faggioli
Virtualization Software Engineer
SUSE Labs, SUSE https://www.suse.com/
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