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| author | David S. Miller <davem@sunset.davemloft.net> | 2006-11-10 04:58:25 +0100 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2006-12-03 06:21:52 +0100 |
| commit | 931731123a103cfb3f70ac4b7abfc71d94ba1f03 (patch) | |
| tree | 0af6636fde05f74a8aa5421bfe9828e2a209170d /fs/aio.c | |
| parent | [NET] ip-sysctl.txt: Alphabetize. (diff) | |
| download | linux-931731123a103cfb3f70ac4b7abfc71d94ba1f03.tar.xz linux-931731123a103cfb3f70ac4b7abfc71d94ba1f03.zip | |
[TCP]: Don't set SKB owner in tcp_transmit_skb().
The data itself is already charged to the SKB, doing
the skb_set_owner_w() just generates a lot of noise and
extra atomics we don't really need.
Lmbench improvements on lat_tcp are minimal:
before:
TCP latency using localhost: 23.2701 microseconds
TCP latency using localhost: 23.1994 microseconds
TCP latency using localhost: 23.2257 microseconds
after:
TCP latency using localhost: 22.8380 microseconds
TCP latency using localhost: 22.9465 microseconds
TCP latency using localhost: 22.8462 microseconds
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'fs/aio.c')
0 files changed, 0 insertions, 0 deletions