Re: [Patch 6/7] Swapin page fault delays

Arjan van de Ven
2006-02-27T08:30:34Z

On Mon, 2006-02-27 at 03:22 -0500, Shailabh Nagar wrote:
> delayacct-swapin.patch
>
> Record time spent by a task waiting for its pages to be swapped in.
> This statistic can help in adjusting the rss limits of
> tasks (process), especially relative to each other, when the system is
> under memory pressure.

ok this poses a question: how do you deal with nested timings? Say an
O_SYC write which internally causes a pagefault?
delayacct_timestamp_start() at minimum has to get event-type specific,
or even implement a stack of some sorts.