Re: [PATCH] Add accumulated call counter for memory allocation profiling

[Kent Overstreet]

On Sun, Jun 30, 2024 at 12:33:14PM GMT, Suren Baghdasaryan wrote:
> On Mon, Jun 17, 2024 at 8:33 AM David Wang <00107082@xxxxxxx> wrote:
> >
> > Accumulated call counter can be used to evaluate rate
> > of memory allocation via delta(counters)/delta(time).
> > This metrics can help analysis performance behaviours,
> > e.g. tuning cache size, etc.
> 
> Sorry for the delay, David.
> IIUC with this counter you can identify the number of allocations ever
> made from a specific code location. Could you please clarify the usage
> a bit more? Is the goal to see which locations are the most active and
> the rate at which allocations are made there? How will that
> information be used?
> I'm a bit cautious here because each counter will take more space and
> use some additional cpu cycles.
> Thanks,
> Suren.

Maybe behind another kconfig option?