On 12/10/14 11:05 AM, Andi Kleen wrote:
On Wed, Dec 10, 2014 at 10:39:53AM -0700, David Ahern wrote:
On 12/10/14 10:32 AM, Andi Kleen wrote:
From what I understood, how would it insert that event into the
perf.data event stream? Only if it necessarily involved a new mmap, via
the kernel, etc.
That's the new interface to be defined.
Just write a perf.data?
Pawel Moll's new ioctl -- assumming it gets committed.
We can't push large volume data -- like line numbers and executable code -
through a ioctl.
If you write a separate perf.data file then it has to be merged with the
file generated by perf which brings in the perf_clock timestamp problem
since timestamps are needed to merge the data sets.
David
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