Re: [PATCH 10/11] perf intel-pt: Add support for decoding FUP/TIP only

Andi Kleen
2020-07-09T17:55:09Z

On Thu, Jul 09, 2020 at 08:36:27PM +0300, Adrian Hunter wrote:
> +The q option does not decode TNT packets, and does not walk object code, but
> +gets the ip from FUP and TIP packets. The q option can be used with the b and i
> +options but the period is not used. The q option decodes more quickly, but is
> +useful only if the control flow of interest is represented or indicated by FUP,
> +TIP, TIP.PGE, or TIP.PGD packets. However the q option could be used to find
> +time ranges that could then be decoded fully using the --time option.

Ah ok the documentation is here. Ignore previous suggestion.

Can you describe the effect in a high level without referring to packet names?

The user may not be familar with them.

So two qs will be PSB only decoding I hope?

-Andi