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
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
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
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
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, >sibling_list, group_entry)
> perf_event_read(sibling)
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
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(sibling)
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
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
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_txn.
Define a new PERF_PMU_TXN_READ interface to read a group of counters
at once. Note that we use this interface with all PMUs.
PMUs that implement this interface use the ->read() operation to _queue_
the counters to be read and use ->commit_txn() to actually read all the
queued counters at once.
Define a new PERF_PMU_TXN_READ interface to read a group of counters
at once. Note that we use this interface with all PMUs.
PMUs that implement this interface use the -read() operation to _queue_
the counters to be read and use -commit_txn() to actually read all the
queued counters at once.
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