Messages in this thread | | | Date | Wed, 7 Nov 2012 13:30:16 +0200 | Subject | Re: [RFC v3 0/3] vmpressure_fd: Linux VM pressure notifications | From | Pekka Enberg <> |
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Hi Anton,
On Wed, Nov 7, 2012 at 12:53 PM, Anton Vorontsov <anton.vorontsov@linaro.org> wrote: > This is the third RFC. As suggested by Minchan Kim, the API is much > simplified now (comparing to vmevent_fd): > > - As well as Minchan, KOSAKI Motohiro didn't like the timers, so the > timers are gone now; > - Pekka Enberg didn't like the complex attributes matching code, and > so it is no longer there; > - Nobody liked the raw vmstat attributes, and so they were eliminated > too.
I love the API and implementation simplifications but I hate the new ABI. It's a specialized, single-purpose syscall and bunch of procfs tunables and I don't see how it's 'extensible' to anything but VM
If people object to vmevent_fd() system call, we should consider using something more generic like perf_event_open() instead of inventing our own special purpose ABI.
Pekka
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