linux/Documentation/netlink
Jakub Kicinski d49010adae net: page_pool: expose page pool stats via netlink
Dump the stats into netlink. More clever approaches
like dumping the stats per-CPU for each CPU individually
to see where the packets get consumed can be implemented
in the future.

A trimmed example from a real (but recently booted system):

$ ./cli.py --no-schema --spec netlink/specs/netdev.yaml \
           --dump page-pool-stats-get
[{'info': {'id': 19, 'ifindex': 2},
  'alloc-empty': 48,
  'alloc-fast': 3024,
  'alloc-refill': 0,
  'alloc-slow': 48,
  'alloc-slow-high-order': 0,
  'alloc-waive': 0,
  'recycle-cache-full': 0,
  'recycle-cached': 0,
  'recycle-released-refcnt': 0,
  'recycle-ring': 0,
  'recycle-ring-full': 0},
 {'info': {'id': 18, 'ifindex': 2},
  'alloc-empty': 66,
  'alloc-fast': 11811,
  'alloc-refill': 35,
  'alloc-slow': 66,
  'alloc-slow-high-order': 0,
  'alloc-waive': 0,
  'recycle-cache-full': 1145,
  'recycle-cached': 6541,
  'recycle-released-refcnt': 0,
  'recycle-ring': 1275,
  'recycle-ring-full': 0},
 {'info': {'id': 17, 'ifindex': 2},
  'alloc-empty': 73,
  'alloc-fast': 62099,
  'alloc-refill': 413,
...

Acked-by: Jesper Dangaard Brouer <hawk@kernel.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2023-11-28 15:48:39 +01:00
..
specs net: page_pool: expose page pool stats via netlink 2023-11-28 15:48:39 +01:00
genetlink-c.yaml doc/netlink: Update schema to support cmd-cnt-name and cmd-max-name 2023-10-27 14:56:04 -07:00
genetlink-legacy.yaml doc/netlink: Update schema to support cmd-cnt-name and cmd-max-name 2023-10-27 14:56:04 -07:00
genetlink.yaml netlink: specs: support conditional operations 2023-10-26 19:42:15 -07:00
netlink-raw.yaml doc/netlink: Update schema to support cmd-cnt-name and cmd-max-name 2023-10-27 14:56:04 -07:00