Re: [Xen-devel] [RFC][PATCH] Hypervisor profiling using GCOV

[Tej <bewith.tej@xxxxxxxxx>]

On Wed, Feb 18, 2009 at 1:36 PM, Keir Fraser <keir.fraser@xxxxxxxxxxxxx> wrote:
> On 18/02/2009 04:03, "Tej" <bewith.tej@xxxxxxxxx> wrote:
>
>> hey keir
>>
>> i need some input from you, regarding this tool.. It is worth
>> investigating further in hypervisor profiling.
>> or anything like this tool need a better design/coding/new features
>> anything of this sort.
>
> Does it get us significantly more than the existing xentrace and xenoprofile
> tools? Especially the latter, which already does program-counter tracing and
> generation of stats from that, via the oprofile tool.

thanks for our feedback
i agree xenoprofile is advanced proffiling tool in xen since ages, but
GCOV could be useful tool to naive tester/programmer on XEN who really
don't understand xenoprofile stats....

e.g If i start with any hypervisor subsystem (scheduler), i will run
xm test suite for scheduler and see  what all code is getting affected
over a  period of time and proceed with it...

>
> George Dunlap does most of our profiling internally. You might ask him what
> he thinks compared with these existing supported tools.

George, Do you have any comments on this

>
>  -- Keir
>
>
>

thanks
-tej

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