Date: Wed, 11 May 2005 11:26:24 +0000 (UTC) From: Gleb Smirnoff <glebius@FreeBSD.org> To: src-committers@FreeBSD.org, cvs-src@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/sys/netgraph/netflow netflow.c netflow.h ng_netflow.c ng_netflow.h Message-ID: <200505111126.j4BBQOdL062708@repoman.freebsd.org>
next in thread | raw e-mail | index | archive | help
glebius 2005-05-11 11:26:24 UTC
FreeBSD src repository
Modified files:
sys/netgraph/netflow netflow.c netflow.h ng_netflow.c
ng_netflow.h
Log:
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.
Revision Changes Path
1.13 +293 -269 src/sys/netgraph/netflow/netflow.c
1.3 +5 -0 src/sys/netgraph/netflow/netflow.h
1.9 +10 -3 src/sys/netgraph/netflow/ng_netflow.c
1.6 +32 -30 src/sys/netgraph/netflow/ng_netflow.h
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?200505111126.j4BBQOdL062708>