Peter Zijlstra [pet...@infradead.org] wrote:
| On Wed, Jul 22, 2015 at 04:19:16PM -0700, Sukadev Bhattiprolu wrote:
| > Peter Zijlstra [pet...@infradead.org] wrote:
| > | I've not woken up yet, and not actually fully read the email, but can
| > | you stuff the entire above chunk inside the IPI?
| >
On Wed, Jul 22, 2015 at 04:19:16PM -0700, Sukadev Bhattiprolu wrote:
> Peter Zijlstra [pet...@infradead.org] wrote:
> | I've not woken up yet, and not actually fully read the email, but can
> | you stuff the entire above chunk inside the IPI?
> |
> | I think you could then actually optimize __perf
Peter Zijlstra [pet...@infradead.org] wrote:
| I've not woken up yet, and not actually fully read the email, but can
| you stuff the entire above chunk inside the IPI?
|
| I think you could then actually optimize __perf_event_read() as well,
| because all these events should be on the same context
On Tue, Jul 21, 2015 at 06:50:45PM -0700, Sukadev Bhattiprolu wrote:
> We are trying to use the following interface:
>
> start_txn(pmu, PERF_PMU_TXN_READ);
>
> perf_event_read(leader);
> list_for_each(sibling, &leader->sibling_list, group_entry)
> perf_event_read(s
Peter Zijlstra [pet...@infradead.org] wrote:
| On Tue, Jul 14, 2015 at 08:01:54PM -0700, Sukadev Bhattiprolu wrote:
| > +/*
| > + * Use the transaction interface to read the group of events in @leader.
| > + * PMUs like the 24x7 counters in Power, can use this to queue the events
| > + * in the ->r
On Tue, Jul 14, 2015 at 08:01:54PM -0700, Sukadev Bhattiprolu wrote:
> +/*
> + * Use the transaction interface to read the group of events in @leader.
> + * PMUs like the 24x7 counters in Power, can use this to queue the events
> + * in the ->read() operation and perform the actual read in ->commit
