Performance problem
Subsystems (2)
OK, thanks for all your response!
I've tried the following:
- Change the NIC (old was rtl8139, new is AMD pcnet32): no changes
- Mount nfs in local: no problem
- Pinging server with 8192 bytes: high packet loss ! (between 30 & 90%)
It's maybe no more an nfs problem but, in my LAN the mtu are @ 1500 on every machine, and there's no router between server and workstations, some tips will be appreciated :-).
--
Nicolas Brainez
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Quoted 1 line · Nicolas Brainez
- Change the NIC (old was rtl8139, new is AMD pcnet32): no changes
The rtl8139 is a terrible NIC. It doesn't seem to work under high load under any OS.
Quoted 1 line
- Pinging server with 8192 bytes: high packet loss ! (between 30 & 90%)
Well, there's your problem. As you could imagine, NFS with 8k packets won't work so well, but you won't notice for telnet.
You have 2 choices to cover up the problem:
1) Use NFS over TCP.
2) Use NFS with UDP and 1k packets.
As for what the underlying problem is, I don't really know. I would follow up by using "netperf" or another TCP-related test to see if the TCP bandwidth is acceptable. If it is, then you can not fix it...
greg
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