[RFC,v1,0/3] liburing: add api for napi busy poll timeout

Message

Stefan Roesch Nov. 3, 2022, 8:40 p.m. UTC

This adds two new api's to set and clear the napi busy poll timeout. The
two new functions are called:
- io_uring_register_busy_poll_timeout and
- io_uring_unregister_busy_poll_timeout.

The patch series also contains the documentation for the two new functions
and two test programs. The client program is called napi-busy-poll-client
and the server program napi-busy-poll-server. The client measures the
roundtrip times of requests.

There is also a kernel patch "io-uring: support napi busy poll" to enable
this feature on the kernel side.

Signed-off-by: Stefan Roesch <[e-mail]>

Stefan Roesch (3):
  liburing: add api to set napi busy poll timeout
  liburing: add documentation for new napi busy polling
  liburing: add test programs for napi busy poll

 man/io_uring_register_napi.3    |  35 +++
 man/io_uring_unregister_napi.3  |  26 ++
 src/include/liburing.h          |   3 +
 src/include/liburing/io_uring.h |   4 +
 src/register.c                  |  12 +
 test/Makefile                   |   2 +
 test/napi-busy-poll-client.c    | 419 ++++++++++++++++++++++++++++++++
 test/napi-busy-poll-server.c    | 371 ++++++++++++++++++++++++++++
 8 files changed, 872 insertions(+)
 create mode 100644 man/io_uring_register_napi.3
 create mode 100644 man/io_uring_unregister_napi.3
 create mode 100644 test/napi-busy-poll-client.c
 create mode 100644 test/napi-busy-poll-server.c


base-commit: 4915f2af869876d892a1f591ee2c21be21c6fc5c