freebsd-src/sys/netgraph/netflow
Gleb Smirnoff 494e177ada A new version of NetFlow node.
The most significant changes are:
- Use UMA zone instead of own chunk of memory.
- Lock each hash entry separately.
- Expire items "actively" - interrupt method can expire flows
  from hash slot, when it searches through it.
- Remove global tailqueue. Make callout thread search through
  every hash slot.
- Export datagram is detached from private data and filled. If
  it is incomplete, it is attached back. Another thread will
  continue working with it.

Lesser, but also important speedups:
- Flows in hash slot are stored in tailqueue. Whenever a flow is
  hit, it is moved to the begging, so it can be located quicker.
- When callout thread works with hash slot it bails out if
  slot mutex is contested.
2005-05-11 11:26:24 +00:00
..
netflow.c A new version of NetFlow node. 2005-05-11 11:26:24 +00:00
netflow.h A new version of NetFlow node. 2005-05-11 11:26:24 +00:00
ng_netflow.c A new version of NetFlow node. 2005-05-11 11:26:24 +00:00
ng_netflow.h A new version of NetFlow node. 2005-05-11 11:26:24 +00:00