Re: [PATCH V1 01/13] selftests/resctrl: Fix feature detection

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Hi Sai,

On 3/9/2020 3:51 PM, Prakhya, Sai Praneeth wrote:
>> -----Original Message-----
>> From: Reinette Chatre <reinette.chatre@xxxxxxxxx>
>> Sent: Monday, March 9, 2020 3:34 PM
> 
> [SNIP]
> 
>>> That's a good point and makes sense to me. I think we could fix it in
>>> two ways 1. grep for strings in dmesg but that will still leave
>>> ambiguity in deciding b/w mbm and cqm because kernel prints "resctrl: L3
>> monitoring detected" for both the features 2. Check in "info" directory
>>> 	a. For cat_l3, we could search for info/L3
>>> 	b. For mba, we could search for info/MB
>>> 	c. For cqm and mbm, we could search for specified string in
>>> info/L3_MON/mon_features
>>>
>>> I think option 2 might be better because it can handle all cases, please let me
>> know what you think.
>>
>> I agree. For the reasons you mention and also that (1) may not be possible if the
>> loglevel prevents those lines from being printed.
> 
> Makes sense. I will work on the fix.

One more note about this ... from what I can tell the test for a feature
currently fails if the platform does not support the feature. Would it
be possible to just skip the test in this case instead?

Reinette




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