Re: [Qemu-devel] [PATCH v2 3/3] trace: enable all events by default

[Blue Swirl]

On Wed, Nov 10, 2010 at 7:57 PM, Lluís <address@hidden> wrote:
> Blue Swirl writes:
>
>> On Wed, Nov 10, 2010 at 5:59 PM, Lluís <address@hidden> wrote:
>>> So, my patch is just a matter of having all events available _only_ when
>>> you use a backend other than "nop".
>
>> Then the default for simpletrace (and dtrace?) should also be disabled
>> initial state. If you have 1000 tracepoints automatically enabled at
>> start (with simpletrace, not nop), disabling all of them if you are
>> only interested in a few of them is difficult.
>
> That's how it is. The patch sets always ".state=0" in "simple", and
> "dtrace" just does not do anything unless you plug something into the
> probe (similarly with "ust").

Oh, I missed .state=0 part, it was also not mentioned in the
description. Then these changes should be OK.