**********************************
* netstat -s before the workload *
**********************************
Ip:
433 total packets received
0 forwarded
0 incoming packets discarded
409 incoming packets delivered
239 requests sent out
Icmp:
24 ICMP messages received
0 input ICMP message failed.
ICMP input histogram:
destination unreachable: 24
24 ICMP messages sent
0 ICMP messages failed
ICMP output histogram:
destination unreachable: 24
Tcp:
0 active connections openings
2 passive connection openings
0 failed connection attempts
0 connection resets received
2 connections established
300 segments received
183 segments send out
0 segments retransmited
0 bad segments received.
2 resets sent
Udp:
8 packets received
24 packets to unknown port received.
0 packet receive errors
32 packets sent
TcpExt:
ArpFilter: 0
5 delayed acks sent
4 packets directly queued to recvmsg prequeue.
35 packets header predicted
TCPPureAcks: 5
TCPHPAcks: 160
TCPRenoRecovery: 0
TCPSackRecovery: 0
TCPSACKReneging: 0
TCPFACKReorder: 0
TCPSACKReorder: 0
TCPRenoReorder: 0
TCPTSReorder: 0
TCPFullUndo: 0
TCPPartialUndo: 0
TCPDSACKUndo: 0
TCPLossUndo: 0
TCPLoss: 0
TCPLostRetransmit: 0
TCPRenoFailures: 0
TCPSackFailures: 0
TCPLossFailures: 0
TCPFastRetrans: 0
TCPForwardRetrans: 0
TCPSlowStartRetrans: 0
TCPTimeouts: 0
TCPRenoRecoveryFail: 0
TCPSackRecoveryFail: 0
TCPSchedulerFailed: 0
TCPRcvCollapsed: 0
TCPDSACKOldSent: 0
TCPDSACKOfoSent: 0
TCPDSACKRecv: 0
TCPDSACKOfoRecv: 0
TCPAbortOnSyn: 0
TCPAbortOnData: 0
TCPAbortOnClose: 0
TCPAbortOnMemory: 0
TCPAbortOnTimeout: 0
TCPAbortOnLinger: 0
TCPAbortFailed: 0
TCPMemoryPressures: 0
*********************************
* netstat -s after the workload *
*********************************
Ip:
425317106 total packets received
3648 forwarded
0 incoming packets discarded
425313332 incoming packets delivered
203629600 requests sent out
Icmp:
58 ICMP messages received
12 input ICMP message failed.
ICMP input histogram:
destination unreachable: 58
58 ICMP messages sent
0 ICMP messages failed
ICMP output histogram:
destination unreachable: 58
Tcp:
64 active connections openings
16690445 passive connection openings
56552 failed connection attempts
0 connection resets received
3 connections established
425311551 segments received
203629500 segments send out
4241408 segments retransmited
0 bad segments received.
298883 resets sent
Udp:
8 packets received
34 packets to unknown port received.
0 packet receive errors
42 packets sent
TcpExt:
ArpFilter: 0
8884840 TCP sockets finished time wait in fast timer
12913162 delayed acks sent
17292 delayed acks further delayed because of locked socket
Quick ack mode was activated 102351 times
54977 times the listen queue of a socket overflowed
54977 SYNs to LISTEN sockets ignored
157 packets directly queued to recvmsg prequeue.
51 packets directly received from prequeue
16925947 packets header predicted
51 packets header predicted and directly queued to user
TCPPureAcks: 169071816
TCPHPAcks: 176510836
TCPRenoRecovery: 30090
TCPSackRecovery: 0
TCPSACKReneging: 0
TCPFACKReorder: 0
TCPSACKReorder: 0
TCPRenoReorder: 464
TCPTSReorder: 5
TCPFullUndo: 6
TCPPartialUndo: 29
TCPDSACKUndo: 0
TCPLossUndo: 1
TCPLoss: 0
TCPLostRetransmit: 0
TCPRenoFailures: 218884
TCPSackFailures: 0
TCPLossFailures: 35561
TCPFastRetrans: 145529
TCPForwardRetrans: 0
TCPSlowStartRetrans: 3463096
TCPTimeouts: 373473
TCPRenoRecoveryFail: 1221
TCPSackRecoveryFail: 0
TCPSchedulerFailed: 0
TCPRcvCollapsed: 0
TCPDSACKOldSent: 0
TCPDSACKOfoSent: 0
TCPDSACKRecv: 1
TCPDSACKOfoRecv: 0
TCPAbortOnSyn: 0
TCPAbortOnData: 0
TCPAbortOnClose: 0
TCPAbortOnMemory: 0
TCPAbortOnTimeout: 0
TCPAbortOnLinger: 0
TCPAbortFailed: 0
TCPMemoryPressures: 0
-
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