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
History
File Mode Size
reed_solomon
zlib_deflate
zlib_inflate
.gitignore -rw-r--r-- 51 bytes
Kconfig -rw-r--r-- 1.9 KB
Kconfig.debug -rw-r--r-- 12.7 KB
Makefile -rw-r--r-- 1.8 KB
bitmap.c -rw-r--r-- 23.1 KB
bust_spinlocks.c -rw-r--r-- 905 bytes
cmdline.c -rw-r--r-- 2.7 KB
cpumask.c -rw-r--r-- 972 bytes
crc-ccitt.c -rw-r--r-- 3.0 KB
crc16.c -rw-r--r-- 2.8 KB
crc32.c -rw-r--r-- 15.5 KB
crc32defs.h -rw-r--r-- 1.0 KB
ctype.c -rw-r--r-- 1.3 KB
debug_locks.c -rw-r--r-- 1.1 KB
dec_and_lock.c -rw-r--r-- 806 bytes
div64.c -rw-r--r-- 1.3 KB
dump_stack.c -rw-r--r-- 290 bytes
errno.c -rw-r--r-- 89 bytes
extable.c -rw-r--r-- 1.9 KB
find_next_bit.c -rw-r--r-- 4.3 KB
gen_crc32table.c -rw-r--r-- 1.8 KB
genalloc.c -rw-r--r-- 4.2 KB
halfmd4.c -rw-r--r-- 2.0 KB
hweight.c -rw-r--r-- 1.4 KB
idr.c -rw-r--r-- 10.9 KB
inflate.c -rw-r--r-- 37.0 KB
int_sqrt.c -rw-r--r-- 533 bytes
iomap.c -rw-r--r-- 6.2 KB
iomap_copy.c -rw-r--r-- 2.1 KB
kernel_lock.c -rw-r--r-- 4.6 KB
klist.c -rw-r--r-- 6.8 KB
kobject.c -rw-r--r-- 12.1 KB
kobject_uevent.c -rw-r--r-- 6.9 KB
kref.c -rw-r--r-- 1.8 KB
libcrc32c.c -rw-r--r-- 6.5 KB
locking-selftest-hardirq.h -rw-r--r-- 207 bytes
locking-selftest-mutex.h -rw-r--r-- 120 bytes
locking-selftest-rlock-hardirq.h -rw-r--r-- 74 bytes
locking-selftest-rlock-softirq.h -rw-r--r-- 74 bytes
locking-selftest-rlock.h -rw-r--r-- 158 bytes
locking-selftest-rsem.h -rw-r--r-- 163 bytes
locking-selftest-softirq.h -rw-r--r-- 207 bytes
locking-selftest-spin-hardirq.h -rw-r--r-- 73 bytes
locking-selftest-spin-softirq.h -rw-r--r-- 73 bytes
locking-selftest-spin.h -rw-r--r-- 118 bytes
locking-selftest-wlock-hardirq.h -rw-r--r-- 74 bytes
locking-selftest-wlock-softirq.h -rw-r--r-- 74 bytes
locking-selftest-wlock.h -rw-r--r-- 158 bytes
locking-selftest-wsem.h -rw-r--r-- 163 bytes
locking-selftest.c -rw-r--r-- 28.6 KB
parser.c -rw-r--r-- 5.8 KB
percpu_counter.c -rw-r--r-- 964 bytes
plist.c -rw-r--r-- 2.8 KB
prio_tree.c -rw-r--r-- 12.2 KB
radix-tree.c -rw-r--r-- 21.5 KB
rbtree.c -rw-r--r-- 8.5 KB
rwsem-spinlock.c -rw-r--r-- 6.9 KB
rwsem.c -rw-r--r-- 6.4 KB
semaphore-sleepers.c -rw-r--r-- 4.7 KB
sha1.c -rw-r--r-- 2.4 KB
smp_processor_id.c -rw-r--r-- 1.1 KB
sort.c -rw-r--r-- 2.4 KB
spinlock_debug.c -rw-r--r-- 6.6 KB
string.c -rw-r--r-- 12.4 KB
swiotlb.c -rw-r--r-- 22.7 KB
textsearch.c -rw-r--r-- 9.2 KB
ts_bm.c -rw-r--r-- 4.9 KB
ts_fsm.c -rw-r--r-- 10.5 KB
ts_kmp.c -rw-r--r-- 3.8 KB
vsprintf.c -rw-r--r-- 18.8 KB

back to top