Dois-je augmenter le paramètre txqueuelen ?

[wondersonic]

bonjour,
Voilà, j'ai un serveur Linux qui subit pas mal de trafique réseau :

Code :

1
2
3
4
5
6
7
8
9
$ ifconfig eth0
eth0      Link encap:Ethernet  HWaddr XX:XX:XX:XX:XX:XX
          inet addr:XXX.XXX.XXX.XXX  Bcast:XXX.XXX.XXX.XXX  Mask:XXX.XXX.XXX.XXX
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:13683955139 errors:0 dropped:0 overruns:0 frame:0
          TX packets:11854750016 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:7600793963483 (6.9 TiB)  TX bytes:6400061348086 (5.8 TiB)
          Interrupt:169 Memory:da000000-da012100

Vu le volume, pensez-vous que je devrais augmenter la valeur de txqueuelen ? Si oui, combien et pourquoi ?

D'autres infos ci-dessous, si vous avez des commentaires :

Code :

1
2
$ uname -a
Linux XXX 2.6.9-67.ELsmp #1 SMP Wed Nov 7 13:56:44 EST 2007 x86_64 x86_64 x86_64 GNU/Linux

Code :

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
$ netstat -s
Ip:
    2498362757 total packets received
    6787262 with invalid addresses
    0 forwarded
    0 incoming packets discarded
    2491464007 incoming packets delivered
    435148847 requests sent out
    15399 outgoing packets dropped
    141509 reassemblies required
    30141 packets reassembled ok
    1168 fragments received ok
Icmp:
    691366 ICMP messages received
    43 input ICMP message failed.
    ICMP input histogram:
        destination unreachable: 9573
        timeout in transit: 175
        echo requests: 566723
        echo replies: 114879
    576799 ICMP messages sent
    0 ICMP messages failed
    ICMP output histogram:
        destination unreachable: 10076
        echo replies: 566723
Tcp:
    6272616 active connections openings
    61223940 passive connection openings
    227 failed connection attempts
    2233492 connection resets received
    451 connections established
    4239525071 segments received
    407305742 segments send out
    2690059 segments retransmited
    4 bad segments received.
    52848599 resets sent
Udp:
    2386824307 packets received
    9779 packets to unknown port received.
    104547 packet receive errors
    24505566 packets sent
TcpExt:
    46786 invalid SYN cookies received
    12783 resets received for embryonic SYN_RECV sockets
    1285 packets pruned from receive queue because of socket buffer overrun
    6 packets pruned from receive queue
    8 ICMP packets dropped because they were out-of-window
    ArpFilter: 0
    1312334 TCP sockets finished time wait in fast timer
    8722 time wait sockets recycled by time stamp
    26 packets rejects in established connections because of timestamp
    97809677 delayed acks sent
    364474 delayed acks further delayed because of locked socket
    Quick ack mode was activated 1445178 times
    8323 times the listen queue of a socket overflowed
    8323 SYNs to LISTEN sockets ignored
    2538129274 packets directly queued to recvmsg prequeue.
    1289347629 packets directly received from backlog
    3441308947 packets directly received from prequeue
    200314262 packets header predicted
    972191526 packets header predicted and directly queued to user
    TCPPureAcks: 305212452
    TCPHPAcks: -107598054
    TCPRenoRecovery: 229108
    TCPSackRecovery: 144658
    TCPSACKReneging: 0
    TCPFACKReorder: 1845
    TCPSACKReorder: 311
    TCPRenoReorder: 13
    TCPTSReorder: 12
    TCPFullUndo: 7
    TCPPartialUndo: 144
    TCPDSACKUndo: 35
    TCPLossUndo: 108799
    TCPLoss: 111159
    TCPLostRetransmit: 29
    TCPRenoFailures: 4292
    TCPSackFailures: 22756
    TCPLossFailures: 736
    TCPFastRetrans: 900177
    TCPForwardRetrans: 33076
    TCPSlowStartRetrans: 244716
    TCPTimeouts: 1393097
    TCPRenoRecoveryFail: 20579
    TCPSackRecoveryFail: 59804
    TCPSchedulerFailed: 12213
    TCPRcvCollapsed: 67871
    TCPDSACKOldSent: 1446949
    TCPDSACKOfoSent: 650
    TCPDSACKRecv: 50805
    TCPDSACKOfoRecv: 89
    TCPAbortOnSyn: 0
    TCPAbortOnData: 4431687
    TCPAbortOnClose: 8062
    TCPAbortOnMemory: 0
    TCPAbortOnTimeout: 218
    TCPAbortOnLinger: 0
    TCPAbortFailed: 0
    TCPMemoryPressures: 0

Merci d'avance
WS

[wondersonic]

Pas de réponse, je vais essayer une autre approche.

Quel est la valeur de ce paramètre sur vos serveurs ? (oui, c'est un sondage).

Merci par avance.

WS