On 12/19/2017 2:02 PM, Peter Zijlstra wrote:
On Mon, Dec 18, 2017 at 03:34:51AM -0800, kan.li...@linux.intel.com wrote:
--- a/arch/x86/events/intel/ds.c
+++ b/arch/x86/events/intel/ds.c
@@ -926,6 +926,16 @@ void intel_pmu_pebs_del(struct perf_event *event)
pebs_update_state(needed_cb,
On 12/19/2017 2:02 PM, Peter Zijlstra wrote:
On Mon, Dec 18, 2017 at 03:34:51AM -0800, kan.li...@linux.intel.com wrote:
--- a/arch/x86/events/intel/ds.c
+++ b/arch/x86/events/intel/ds.c
@@ -926,6 +926,16 @@ void intel_pmu_pebs_del(struct perf_event *event)
pebs_update_state(needed_cb,
On Mon, Dec 18, 2017 at 03:34:51AM -0800, kan.li...@linux.intel.com wrote:
> --- a/arch/x86/events/intel/ds.c
> +++ b/arch/x86/events/intel/ds.c
> @@ -926,6 +926,16 @@ void intel_pmu_pebs_del(struct perf_event *event)
> pebs_update_state(needed_cb, cpuc, event->ctx->pmu);
> }
>
> +void
On Mon, Dec 18, 2017 at 03:34:51AM -0800, kan.li...@linux.intel.com wrote:
> --- a/arch/x86/events/intel/ds.c
> +++ b/arch/x86/events/intel/ds.c
> @@ -926,6 +926,16 @@ void intel_pmu_pebs_del(struct perf_event *event)
> pebs_update_state(needed_cb, cpuc, event->ctx->pmu);
> }
>
> +void
From: Kan Liang
When the PEBS interrupt threshold is larger than one, there is no way to
get exact auto-reload times and value needed for event update unless
flush the PEBS buffer.
Drain the PEBS buffer in event read when large PEBS is enabled.
For the threshold is
From: Kan Liang
When the PEBS interrupt threshold is larger than one, there is no way to
get exact auto-reload times and value needed for event update unless
flush the PEBS buffer.
Drain the PEBS buffer in event read when large PEBS is enabled.
For the threshold is one, even auto-reload is
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