Re: [Xen-devel] [PATCH 05/15] xen: make it possible to disable tracing in Kconfig.

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 08.06.17 at 17:16, <george.dunlap@xxxxxxxxxx> wrote:
> On 07/06/17 16:14, Jan Beulich wrote:
>>>>> On 01.06.17 at 19:34, <dario.faggioli@xxxxxxxxxx> wrote:
>>> --- a/xen/Kconfig.debug
>>> +++ b/xen/Kconfig.debug
>>> @@ -98,6 +98,14 @@ config PERF_ARRAYS
>>>     ---help---
>>>       Enables software performance counter array histograms.
>>>  
>>> +config TRACING
>>> +   bool "Tracing"
>>> +   default y
>> 
>> default DEBUG (you don't want to suggest turning it on for a
>> release build)
> 
> In the past I've found it pretty useful to have on in release builds of
> XenServer, to analyze performance problems a customer was having, and
> sometimes to see where the guest was crashing.

Well, that's your choice. I'm only asking to default to off in release
builds, not to prevent enabling it.

Jan


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