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| author | Eric Dumazet <dada1@cosmosbay.com> | 2008-06-18 04:04:56 (GMT) |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2008-06-18 04:04:56 (GMT) |
| commit | cb61cb9b8b5ef6c2697d84e5015e314626eb2fba (patch) | |
| tree | 430dd8d5b56d0a9911750ffcbd97563ce68d1b27 /lib/kref.c | |
| parent | fe2c802ab62aa63d276deafa905875f3455f2621 (diff) | |
| download | linux-cb61cb9b8b5ef6c2697d84e5015e314626eb2fba.tar.xz | |
udp: sk_drops handling
In commits 33c732c36169d7022ad7d6eb474b0c9be43a2dc1 ([IPV4]: Add raw
drops counter) and a92aa318b4b369091fd80433c80e62838db8bc1c ([IPV6]:
Add raw drops counter), Wang Chen added raw drops counter for
/proc/net/raw & /proc/net/raw6
This patch adds this capability to UDP sockets too (/proc/net/udp &
/proc/net/udp6).
This means that 'RcvbufErrors' errors found in /proc/net/snmp can be also
be examined for each udp socket.
# grep Udp: /proc/net/snmp
Udp: InDatagrams NoPorts InErrors OutDatagrams RcvbufErrors SndbufErrors
Udp: 23971006 75 899420 16390693 146348 0
# cat /proc/net/udp
sl local_address rem_address st tx_queue rx_queue tr tm->when retrnsmt ---
uid timeout inode ref pointer drops
75: 00000000:02CB 00000000:0000 07 00000000:00000000 00:00000000 00000000 ---
0 0 2358 2 ffff81082a538c80 0
111: 00000000:006F 00000000:0000 07 00000000:00000000 00:00000000 00000000 ---
0 0 2286 2 ffff81042dd35c80 146348
In this example, only port 111 (0x006F) was flooded by messages that
user program could not read fast enough. 146348 messages were lost.
Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'lib/kref.c')
0 files changed, 0 insertions, 0 deletions