Re: [PATCH 2/2] tracing: Resize tgid_map to PID_MAX_LIMIT, not PID_MAX_DEFAULT

From: Steven Rostedt
Date: Wed Jun 30 2021 - 19:11:50 EST


On Wed, 30 Jun 2021 18:34:11 -0400
Joel Fernandes <joelaf@xxxxxxxxxx> wrote:

> > Anyway, I'll wait to hear what Joel says on this. If he thinks this is
> > worth 16M of memory when enabled, I may take it.
>
> I am not a huge fan of the 16M, in Android we enable this feature on
> all devices. Low end Android devices traced in the field are sometimes
> 1 GB and the added memory pressure may be unwelcome. Very least, maybe
> make it optional only for folks who increase pid_max?

Yeah, can we just set it to the size of pid_max, at whatever it is set
to?

-- Steve