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David S. Miller 314324121f [TCP]: Fix stretch ACK performance killer when doing ucopy. 
When we are doing ucopy, we try to defer the ACK generation to
cleanup_rbuf().  This works most of the time very well, but if the
ucopy prequeue is large, this ACKing behavior kills performance.

With TSO, it is possible to fill the prequeue so large that by the
time the ACK is sent and gets back to the sender, most of the window
has emptied of data and performance suffers significantly.

This behavior does help in some cases, so we should think about
re-enabling this trick in the future, using some kind of limit in
order to avoid the bug case.

Signed-off-by: David S. Miller <davem@davemloft.net>
 		2005-05-23 12:03:06 -07:00
..
ipvs [IP_VS]: Remove extra __ip_vs_conn_put() for incoming ICMP. 2005-05-19 12:29:59 -07:00
netfilter [NETFILTER]: Do not be clever about SKB ownership in ip_ct_gather_frags(). 2005-05-19 12:36:33 -07:00
Kconfig Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
Makefile Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
af_inet.c [PATCH] update Ross Biro bouncing email address 2005-05-05 16:36:49 -07:00
ah4.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
arp.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
datagram.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
devinet.c [PATCH] update Ross Biro bouncing email address 2005-05-05 16:36:49 -07:00
esp4.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
fib_frontend.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
fib_hash.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
fib_lookup.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
fib_rules.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
fib_semantics.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
icmp.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
igmp.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
inetpeer.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
ip_forward.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
ip_fragment.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
ip_gre.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
ip_input.c [PATCH] update Ross Biro bouncing email address 2005-05-05 16:36:49 -07:00
ip_options.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
ip_output.c [IPV4/IPV6] Ensure all frag_list members have NULL sk 2005-05-18 22:52:33 -07:00
ip_sockglue.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
ipcomp.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
ipconfig.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
ipip.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
ipmr.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
multipath.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
multipath_drr.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
multipath_random.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
multipath_rr.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
multipath_wrandom.c [IPV4]: multipath_wrandom.c GPF fixes 2005-05-05 14:30:15 -07:00
proc.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
protocol.c [PATCH] update Ross Biro bouncing email address 2005-05-05 16:36:49 -07:00
raw.c [PATCH] update Ross Biro bouncing email address 2005-05-05 16:36:49 -07:00
route.c [PATCH] update Ross Biro bouncing email address 2005-05-05 16:36:49 -07:00
syncookies.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
sysctl_net_ipv4.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
tcp.c [PATCH] update Ross Biro bouncing email address 2005-05-05 16:36:49 -07:00
tcp_diag.c [NETLINK]: Synchronous message processing. 2005-05-03 14:55:09 -07:00
tcp_input.c [TCP]: Fix stretch ACK performance killer when doing ucopy. 2005-05-23 12:03:06 -07:00
tcp_ipv4.c [TCP]: Optimize check in port-allocation code. 2005-05-03 14:36:08 -07:00
tcp_minisocks.c [PATCH] update Ross Biro bouncing email address 2005-05-05 16:36:49 -07:00
tcp_output.c [PATCH] update Ross Biro bouncing email address 2005-05-05 16:36:49 -07:00
tcp_timer.c [PATCH] update Ross Biro bouncing email address 2005-05-05 16:36:49 -07:00
udp.c [PATCH] update Ross Biro bouncing email address 2005-05-05 16:36:49 -07:00
utils.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
xfrm4_input.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
xfrm4_output.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
xfrm4_policy.c [IPSEC]: Store idev entries 2005-05-03 16:27:10 -07:00
xfrm4_state.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
xfrm4_tunnel.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00