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SubjectRe: [RFC 0/7] introduce memory hinting API for external process
On Tue 21-05-19 08:25:55, Anshuman Khandual wrote:
> On 05/20/2019 10:29 PM, Tim Murray wrote:
[...]
> > not seem to introduce a noticeable hot start penalty, not does it
> > cause an increase in performance problems later in the app's
> > lifecycle. I've measured with and without process_madvise, and the
> > differences are within our noise bounds. Second, because we're not
>
> That is assuming that post process_madvise() working set for the application is
> always smaller. There is another challenge. The external process should ideally
> have the knowledge of active areas of the working set for an application in
> question for it to invoke process_madvise() correctly to prevent such scenarios.

But that doesn't really seem relevant for the API itself, right? The
higher level logic the monitor's business.
--
Michal Hocko
SUSE Labs

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