how to tune the system for the heavy traffic?

[liseten1001]

My FreeBSD is 7.3-RELEASE FreeBSD. I found it has slight packetloss.

ping test:

23 packets transmitted, 22 packets received, 4.3% packet loss
round-trip min/avg/max/stddev = 0.073/0.521/1.952/0.521 ms

netstat 1:
there is a lot of input error in netstat 1 result:

% netstat 1
            input        (Total)           output
   packets  errs      bytes    packets  errs      bytes colls
     27839  3336    1807953      31722     0    6226471     0
     29596  2122    1903013      34289     0    6729220     0
     24747  2251    1600582      17843     0    3094079     0
     15358     0    1004995      15942     0    3810051     0
      4743     0     337459      11260     0    2147868     0
      9534     0     629656       3890     0     411055     0
     15024     0    1019820      22629     0    9454034     0
     25099   191    1654160      22364     0    5319211     0
     13175   358     874315      18197     0    6062716     0
     25506  1785    1651455      33867     0   10503736     0
     33319  3029    2137120      31391     0    6423544     0
     29830   597    1915300      33235     0    6198883     0

My question is how to tune the system for the heavy traffic?

 

[SirDice]

First find out where the errors come from. Check the cable, replace it. Check your switch, try a different port. Check the speed/duplex settings, etc.

Once the errors are mostly gone read tuning(7).

 

[liseten1001]

First find out where the errors come from. Check the cable, replace it. Check your switch, try a different port. Check the speed/duplex settings, etc.

Once the errors are mostly gone read tuning(7).

Thank you for your reply.

Does the input error is only caused by physical device (the cable,the switch etc),not the system ?

it seems the input error only occurs when the traffic is very heavy.When the server is not busy everying is ok.

 

[SirDice]

I'm leaning towards the switch or some other upstream device.