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| author | Eric Dumazet <eric.dumazet@gmail.com> | 2009-10-05 09:11:22 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2009-10-05 09:21:57 +0200 |
| commit | 0bfbedb14a8a96c529341bec88991a92b41fac72 (patch) | |
| tree | d52ccb4758fd58cbf74c7a9001e6885275d3ddc8 /Documentation/keys.txt | |
| parent | ipv4: fib table algorithm performance improvement (diff) | |
| download | linux-0bfbedb14a8a96c529341bec88991a92b41fac72.tar.xz linux-0bfbedb14a8a96c529341bec88991a92b41fac72.zip | |
tunnels: Optimize tx path
We currently dirty a cache line to update tunnel device stats
(tx_packets/tx_bytes). We better use the txq->tx_bytes/tx_packets
counters that already are present in cpu cache, in the cache
line shared with txq->_xmit_lock
This patch extends IPTUNNEL_XMIT() macro to use txq pointer
provided by the caller.
Also &tunnel->dev->stats can be replaced by &dev->stats
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'Documentation/keys.txt')
0 files changed, 0 insertions, 0 deletions