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d843634a95
linux/io_uring
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Olivier Langlois d843634a95 io_uring: add napi busy settings to the fdinfo output 
This info may be useful when attempting to debug a problem involving a
ring using the NAPI feature.

Here is an example of the output:
ip-172-31-39-89 /proc/772/fdinfo # cat 14
pos:	0
flags:	02000002
mnt_id:	16
ino:	10243
SqMask:	0xff
SqHead:	633
SqTail:	633
CachedSqHead:	633
CqMask:	0x3fff
CqHead:	430250
CqTail:	430250
CachedCqTail:	430250
SQEs:	0
CQEs:	0
SqThread:	885
SqThreadCpu:	0
SqTotalTime:	52793826
SqWorkTime:	3590465
UserFiles:	0
UserBufs:	0
PollList:
  op=10, task_works=0
  op=10, task_works=0
  op=10, task_works=0
  op=10, task_works=0
  op=6, task_works=0
  op=10, task_works=0
  op=10, task_works=0
  op=10, task_works=0
  op=10, task_works=0
  op=10, task_works=0
  op=6, task_works=0
  op=10, task_works=0
  op=10, task_works=0
  op=10, task_works=0
  op=10, task_works=0
  op=10, task_works=0
  op=10, task_works=0
  op=10, task_works=0
  op=10, task_works=0
  op=10, task_works=0
  op=10, task_works=0
  op=10, task_works=0
  op=10, task_works=0
  op=10, task_works=0
  op=10, task_works=0
  op=10, task_works=0
  op=10, task_works=0
  op=10, task_works=0
  op=10, task_works=0
  op=10, task_works=0
  op=10, task_works=0
  op=10, task_works=0
  op=10, task_works=0
  op=10, task_works=0
  op=10, task_works=0
CqOverflowList:
NAPI:	enabled
napi_busy_poll_to:	1
napi_prefer_busy_poll:	true

Signed-off-by: Olivier Langlois <olivier@trillion01.com>
Reviewed-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/bb184f8b62703ddd3e6e19eae7ab6c67b97e1e10.1722293317.git.olivier@trillion01.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2024-08-25 08:27:00 -06:00
..
advise.c io_uring/advise: support 64-bit lengths 2024-06-16 14:54:55 -06:00
advise.h
alloc_cache.h io_uring/alloc_cache: switch to array based caching 2024-04-15 08:10:25 -06:00
cancel.c io_uring: fix warnings on shadow variables 2024-04-15 08:10:26 -06:00
cancel.h io_uring: fix cancellation overwriting req->flags 2024-06-13 19:25:28 -06:00
epoll.c io_uring: undeprecate epoll_ctl support 2023-05-26 20:22:41 -06:00
epoll.h
eventfd.c io_uring/eventfd: move eventfd handling to separate file 2024-06-16 14:54:55 -06:00
eventfd.h io_uring/eventfd: move eventfd handling to separate file 2024-06-16 14:54:55 -06:00
fdinfo.c io_uring: add napi busy settings to the fdinfo output 2024-08-25 08:27:00 -06:00
fdinfo.h
filetable.c io_uring/filetable: don't unnecessarily clear/reset bitmap 2024-05-08 08:27:45 -06:00
filetable.h io_uring: expand main struct io_kiocb flags to 64-bits 2024-02-08 13:27:03 -07:00
fs.c io_uring/fs: consider link->flags when getting path for LINKAT 2023-11-20 09:01:42 -07:00
fs.h
futex.c io_uring/alloc_cache: switch to array based caching 2024-04-15 08:10:25 -06:00
futex.h io_uring/alloc_cache: switch to array based caching 2024-04-15 08:10:25 -06:00
io_uring.c io_uring/napi: pass ktime to io_napi_adjust_timeout 2024-07-26 08:31:59 -06:00
io_uring.h io_uring/napi: use ktime in busy polling 2024-07-26 08:31:59 -06:00
io-wq.c io_uring/io-wq: limit retrying worker initialisation 2024-07-11 01:51:44 -06:00
io-wq.h io_uring/io-wq: make io_wq_work flags atomic 2024-06-16 14:54:55 -06:00
kbuf.c io_uring/kbuf: sanitize peek buffer setup 2024-08-21 07:16:38 -06:00
kbuf.h io_uring/kbuf: add helpers for getting/peeking multiple buffers 2024-04-22 11:26:01 -06:00
Makefile io_uring/eventfd: move eventfd handling to separate file 2024-06-16 14:54:55 -06:00
memmap.c io_uring: don't attempt to mmap larger than what the user asks for 2024-05-29 09:53:14 -06:00
memmap.h io_uring: move mapping/allocation helpers to a separate file 2024-04-15 08:10:26 -06:00
msg_ring.c io_uring/msg_ring: fix uninitialized use of target_req->flags 2024-07-25 08:41:35 -06:00
msg_ring.h io_uring/msg_ring: add an alloc cache for io_kiocb entries 2024-06-24 08:39:55 -06:00
napi.c io_uring/napi: remove duplicate io_napi_entry timeout assignation 2024-08-12 12:11:42 -06:00
napi.h io_uring/napi: check napi_enabled in io_napi_add() before proceeding 2024-08-12 12:09:03 -06:00
net.c io_uring/net: don't pick multiple buffers for non-bundle send 2024-08-07 15:20:52 -06:00
net.h io_uring: Introduce IORING_OP_LISTEN 2024-06-19 07:57:21 -06:00
nop.c io_uring: support to inject result for NOP 2024-05-10 06:09:45 -06:00
nop.h
notif.c io_uring/notif: disable LAZY_WAKE for linked notifs 2024-04-30 13:06:27 -06:00
notif.h io_uring/notif: implement notification stacking 2024-04-22 19:31:18 -06:00
opdef.c io_uring: Fix probe of disabled operations 2024-06-19 08:58:00 -06:00
opdef.h io_uring: Fix probe of disabled operations 2024-06-19 08:58:00 -06:00
openclose.c io_uring: enable audit and restrict cred override for IORING_OP_FIXED_FD_INSTALL 2024-01-23 15:25:14 -07:00
openclose.h io_uring/openclose: add support for IORING_OP_FIXED_FD_INSTALL 2023-12-12 07:42:57 -07:00
poll.c io_uring: keep multishot request NAPI timeout current 2024-07-30 06:18:58 -06:00
poll.h io_uring/poll: shrink alloc cache size to 32 2024-04-15 08:10:25 -06:00
refs.h io_uring: kill dead code in io_req_complete_post 2024-04-15 08:10:26 -06:00
register.c io_uring: Allocate only necessary memory in io_probe 2024-06-19 08:58:00 -06:00
register.h io_uring/register: move io_uring_register(2) related code to register.c 2023-12-19 08:54:20 -07:00
rsrc.c for-6.11/io_uring-20240714 2024-07-15 13:49:10 -07:00
rsrc.h io_uring: remove io_req_put_rsrc_locked() 2024-04-15 08:10:26 -06:00
rw.c fs: Initial atomic write support 2024-06-20 15:19:17 -06:00
rw.h io_uring/alloc_cache: switch to array based caching 2024-04-15 08:10:25 -06:00
slist.h
splice.c splice: return type ssize_t from all helpers 2023-12-12 16:19:59 +01:00
splice.h
sqpoll.c io_uring/sqpoll: annotate debug task == current with data_race() 2024-08-13 06:10:59 -06:00
sqpoll.h io_uring/sqpoll: statistics of the true utilization of sq threads 2024-03-01 06:28:19 -07:00
statx.c vfs: retire user_path_at_empty and drop empty arg from getname_flags 2024-06-05 17:03:57 +02:00
statx.h
sync.c
sync.h
tctx.c io_uring: Add io_uring_setup flag to pre-register ring fd and never install it 2023-05-16 08:06:00 -06:00
tctx.h
timeout.c io_uring: fix io_match_task must_hold 2024-07-24 08:01:49 -06:00
timeout.h
truncate.c io_uring: add support for ftruncate 2024-02-09 09:04:39 -07:00
truncate.h io_uring: add support for ftruncate 2024-02-09 09:04:39 -07:00
uring_cmd.c io_uring: simplify io_uring_cmd return 2024-07-24 08:01:49 -06:00
uring_cmd.h io_uring/alloc_cache: switch to array based caching 2024-04-15 08:10:25 -06:00
waitid.c io_uring: remove struct io_tw_state::locked 2024-04-15 08:10:24 -06:00
waitid.h io_uring: add IORING_OP_WAITID support 2023-09-21 12:04:45 -06:00
xattr.c vfs: retire user_path_at_empty and drop empty arg from getname_flags 2024-06-05 17:03:57 +02:00
xattr.h