在 2021/6/25 上午11:18, Yunsheng Lin 写道:
Currently ptr_ring selftest is embedded within the virtio
selftest, which involves some specific virtio operation,
such as notifying and kicking.
As ptr_ring has been used by various subsystems, it deserves
it's owner's selftest in order to benchmark different usecase
of ptr_ring, such as page pool and pfifo_fast qdisc.
So add a simple application to benchmark ptr_ring performance.
Currently two test mode is supported:
Mode 0: Both enqueuing and dequeuing is done in a single thread,
it is called simple test mode in the test app.
Mode 1: Enqueuing and dequeuing is done in different thread
concurrently, also known as SPSC(single-producer/
single-consumer) test.
The multi-producer/single-consumer test for pfifo_fast case is
not added yet, which can be added if using CAS atomic operation
to enable lockless multi-producer is proved to be better than
using r->producer_lock.
Only supported on x86 and arm64 for now.
Signed-off-by: Yunsheng Lin <linyunsheng@xxxxxxxxxx>
---
MAINTAINERS | 5 +
tools/testing/selftests/ptr_ring/Makefile | 6 +
tools/testing/selftests/ptr_ring/ptr_ring_test.c | 249 +++++++++++++++++++++++
tools/testing/selftests/ptr_ring/ptr_ring_test.h | 150 ++++++++++++++
4 files changed, 410 insertions(+)
Why can't you simply reuse tools/virtio/ringtest?
Thanks
