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| author | Stephen Hemminger <shemminger@vyatta.com> | 2009-08-18 17:17:10 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2009-08-19 05:26:53 +0200 |
| commit | 724b694225e711f95e6265afdbc304c9e7eb3721 (patch) | |
| tree | 9fbad7f1126dee297108e943082ae565b7a72bac /drivers/net/qla3xxx.c | |
| parent | sky2: optimize transmit completion (diff) | |
| download | linux-724b694225e711f95e6265afdbc304c9e7eb3721.tar.xz linux-724b694225e711f95e6265afdbc304c9e7eb3721.zip | |
sky2: no recycling
Recycling turns out to be a bad idea! For most use cases, the
packet can not be reused: TCP packets are cloned. Even for the ideal
case of forwarding, it hurts performance because of CPU ping/pong.
On a multi-core system forwarding of 64 byte packets is worse
much worse: recycling = 24% forwarded vs no recycling = 42% forwarded
Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/qla3xxx.c')
0 files changed, 0 insertions, 0 deletions