On Thu, May 02, 2019 at 01:50:22PM +0300, Alexander Shishkin wrote:
> The output setting is per-CPU, so all PEBS events must be either writing
> to PT or to the DS area, so in order to not mess up the event scheduling,
> we fall back to the latter in case both types of events are scheduled in.
>
On Thu, May 02, 2019 at 01:50:22PM +0300, Alexander Shishkin wrote:
> The output setting is per-CPU, so all PEBS events must be either writing
> to PT or to the DS area, so in order to not mess up the event scheduling,
> we fall back to the latter in case both types of events are scheduled in.
On Thu, May 02, 2019 at 01:50:22PM +0300, Alexander Shishkin wrote:
> If PEBS declares ability to output its data to Intel PT stream, use the
> aux_source attribute bit to enable PEBS data output to PT. This requires
> a PT event to be present and scheduled in the same context. Unlike the
> DS
If PEBS declares ability to output its data to Intel PT stream, use the
aux_source attribute bit to enable PEBS data output to PT. This requires
a PT event to be present and scheduled in the same context. Unlike the
DS area, the kernel does not extract PEBS records from the PT stream to
generate
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