Documentation/userspace-api/perf_ring_buffer.rst

26     3.1  The relationship between AUX and regular ring buffers
592 AUX ring buffer and the regular ring buffer, then the second part will
593 examine how the AUX ring buffer co-works with the regular ring buffer,
597 3.1 The relationship between AUX and regular ring buffers
600 Generally, the AUX ring buffer is an auxiliary for the regular ring
601 buffer.  The regular ring buffer is primarily used to store the event
608 regular profile samples that write to the regular ring buffer cause an
610 using interrupts would be overwhelming for the regular ring buffer
614 The AUX ring buffer reuses the same algorithm with the regular ring
619 During the initialisation phase, besides the mmap()-ed regular ring
625 regular ring buffer.
634 into the regular ring buffer while the CoreSight's AUX trace data is
637 As a result, we can see the regular ring buffer and the AUX ring buffer
638 are allocated in pairs.  The perf in default mode allocates the regular
643 regular ring buffer and one AUX ring buffer for the whole session.  For
723 regular ring buffer, ``perf_aux_output_begin()`` and ``perf_aux_output_end()``
728 Similar to the regular ring buffer, the AUX ring buffer needs to apply
738 - It fills an event ``PERF_RECORD_AUX`` into the regular ring buffer, this
786   regular ring buffer;