Hi Anton,

On Wed, Nov 7, 2012 at 12:53 PM, Anton Vorontsov
[off-list ref] 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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