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| author | Eric Dumazet <eric.dumazet@gmail.com> | 2011-12-04 07:05:17 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2011-12-04 13:20:40 -0500 |
| commit | 761965eab38d2cbc59c36e355c59609e3a04705a (patch) | |
| tree | 53bc45ee752f8d31323962e5af2e0451376c3b35 /drivers/s390/net | |
| parent | 117632e64d2a5f464e491fe221d7169a3814a77b (diff) | |
| download | linux-761965eab38d2cbc59c36e355c59609e3a04705a.tar.gz linux-761965eab38d2cbc59c36e355c59609e3a04705a.tar.bz2 linux-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/s390/net')
0 files changed, 0 insertions, 0 deletions