https://github.com/torvalds/linux
Revision 4b79f0af48d529a360d3529def01835dc5d45fe1 authored by Ian McDonald on 24 July 2006, 06:33:28 UTC, committed by David S. Miller on 24 July 2006, 19:44:21 UTC
When using the default sequence window size (100) I got the following in my logs: Jun 22 14:24:09 localhost kernel: [ 1492.114775] DCCP: Step 6 failed for DATA packet, (LSWL(6279674225) <= P.seqno(6279674749) <= S.SWH(6279674324)) and (P.ackno doesn't exist or LAWL(18798206530) <= P.ackno(1125899906842620) <= S.AWH(18798206548), sending SYNC... Jun 22 14:24:09 localhost kernel: [ 1492.115147] DCCP: Step 6 failed for DATA packet, (LSWL(6279674225) <= P.seqno(6279674750) <= S.SWH(6279674324)) and (P.ackno doesn't exist or LAWL(18798206530) <= P.ackno(1125899906842620) <= S.AWH(18798206549), sending SYNC... I went to alter the default sysctl and it didn't take for new sockets. Below patch fixes this. I think the default is too low but it is what the DCCP spec specifies. As a side effect of this my rx speed using iperf goes from about 2.8 Mbits/sec to 3.5. This is still far too slow but it is a step in the right direction. Compile tested only for IPv6 but not particularly complex change. Signed off by: Ian McDonald <ian.mcdonald@jandi.co.nz> Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com> Signed-off-by: David S. Miller <davem@davemloft.net>
1 parent 8fdf679
Tip revision: 4b79f0af48d529a360d3529def01835dc5d45fe1 authored by Ian McDonald on 24 July 2006, 06:33:28 UTC
[DCCP]: Fix default sequence window size
[DCCP]: Fix default sequence window size
Tip revision: 4b79f0a
File | Mode | Size |
---|---|---|
802 | ||
8021q | ||
appletalk | ||
atm | ||
ax25 | ||
bluetooth | ||
bridge | ||
core | ||
dccp | ||
decnet | ||
econet | ||
ethernet | ||
ieee80211 | ||
ipv4 | ||
ipv6 | ||
ipx | ||
irda | ||
key | ||
lapb | ||
llc | ||
netfilter | ||
netlink | ||
netrom | ||
packet | ||
rose | ||
rxrpc | ||
sched | ||
sctp | ||
sunrpc | ||
tipc | ||
unix | ||
wanrouter | ||
x25 | ||
xfrm | ||
Kconfig | -rw-r--r-- | 8.8 KB |
Makefile | -rw-r--r-- | 1.4 KB |
TUNABLE | -rw-r--r-- | 2.2 KB |
compat.c | -rw-r--r-- | 18.5 KB |
nonet.c | -rw-r--r-- | 528 bytes |
socket.c | -rw-r--r-- | 51.3 KB |
sysctl_net.c | -rw-r--r-- | 947 bytes |
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