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| author | Stephen Hemminger <shemminger@vyatta.com> | 2009-08-18 15:17:10 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2009-08-18 20:26:53 -0700 |
| commit | 724b694225e711f95e6265afdbc304c9e7eb3721 (patch) | |
| tree | 9fbad7f1126dee297108e943082ae565b7a72bac /drivers/net/sky2.h | |
| parent | 6b84dacadbdc3dab6a5b313d20d5a93b0d998641 (diff) | |
| download | linux-3.10-724b694225e711f95e6265afdbc304c9e7eb3721.tar.gz linux-3.10-724b694225e711f95e6265afdbc304c9e7eb3721.tar.bz2 linux-3.10-724b694225e711f95e6265afdbc304c9e7eb3721.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/sky2.h')
| -rw-r--r-- | drivers/net/sky2.h | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/drivers/net/sky2.h b/drivers/net/sky2.h index 9d07a466aec..73c95471246 100644 --- a/drivers/net/sky2.h +++ b/drivers/net/sky2.h @@ -2032,7 +2032,6 @@ struct sky2_port { u16 rx_pending; u16 rx_data_size; u16 rx_nfrags; - struct sk_buff_head rx_recycle; #ifdef SKY2_VLAN_TAG_USED u16 rx_tag; |