This adds three new api's to set/clear the napi busy poll timeout and to set
the napi prefer busy poll setting. The three new functions are called:
- io_uring_napi_register_busy_poll_timeout,
- io_uring_napi_unregister_busy_poll_timeout,
- io_uring_register_napi_prefer_busy_poll.
The patch series also contains the documentation for the three new functions
and two example 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.
Changes:
- V3:
- Updated liburing.map file
- Moved example programs from the test directory to the example directory.
The two example programs don't fit well in the test category and need to
be run from separate hosts.
- Added the io_uring_register_napi_prefer_busy_poll API.
- Added the call to io_uring_register_napi_prefer_busy_poll to the example
programs
- Updated the documentation
- V2:
- Updated the liburing.map file for the two new functions.
(added a 2.4 section)
- Added a description of the new feature to the changelog file
- Fixed the indentation of the longopts structure
- Used defined exit constants
- Fixed encodeUserData to support 32 bit builds
Signed-off-by: Stefan Roesch <shr@xxxxxxxxxxxx>
Stefan Roesch (4):
liburing: add api to set napi busy poll settings
liburing: add documentation for new napi busy polling
liburing: add test programs for napi busy poll
liburing: update changelog with new feature
.gitignore | 2 +
CHANGELOG | 3 +
examples/Makefile | 2 +
examples/napi-busy-poll-client.c | 432 ++++++++++++++++++
examples/napi-busy-poll-server.c | 380 +++++++++++++++
...io_uring_register_napi_busy_poll_timeout.3 | 35 ++
man/io_uring_register_napi_prefer_busy_poll.3 | 35 ++
..._uring_unregister_napi_busy_poll_timeout.3 | 26 ++
src/include/liburing.h | 6 +
src/include/liburing/io_uring.h | 4 +
src/liburing.map | 7 +
src/register.c | 23 +
12 files changed, 955 insertions(+)
create mode 100644 examples/napi-busy-poll-client.c
create mode 100644 examples/napi-busy-poll-server.c
create mode 100644 man/io_uring_register_napi_busy_poll_timeout.3
create mode 100644 man/io_uring_register_napi_prefer_busy_poll.3
create mode 100644 man/io_uring_unregister_napi_busy_poll_timeout.3
base-commit: 8fc22e3b3348c0a6384ec926e0b19b6707622e58
--
2.30.2
