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authorEric Dumazet <eric.dumazet@gmail.com>2011-12-04 07:05:17 +0000
committerDavid S. Miller <davem@davemloft.net>2011-12-04 13:20:40 -0500
commit761965eab38d2cbc59c36e355c59609e3a04705a (patch)
tree53bc45ee752f8d31323962e5af2e0451376c3b35 /drivers/infiniband
parenttcp: take care of misalignments (diff)
downloadlinux-dev-761965eab38d2cbc59c36e355c59609e3a04705a.tar.xz
linux-dev-761965eab38d2cbc59c36e355c59609e3a04705a.zip
tcp: tcp_sendmsg() page recycling
If our TCP_PAGE(sk) is not shared (page_count() == 1), we can set page offset to 0. This permits better filling of the pages on small to medium tcp writes. "tbench 16" results on my dev server (2x4x2 machine) : Before : 3072 MB/s After : 3146 MB/s (2.4 % gain) Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/infiniband')
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