John Andersen wrote:

On Sunday 25 March 2007, jan kalcic wrote:

...

Hi People,

when I copy any file on a nfs directory it slows down and suddenly stall after about 300 MB.

/etc/fstab looks like:

host:/data /data nfs noauto,user,soft,rsize=8192,wsize=8192 0 0

/etc/exports:

/data/ *(rw,root_squash)

I tried also with the async option but nothing improved.

Regards, Jan

How much memory do you have in the source machine? This sounds like you are filling the buffer and then stalling because the network can not actually copy that fast.

I would check using something like gkrellm which gives you a graphic representation of how much bandwidth is really being used. Check on both source and target if possible.

Im suspecting a network problem.

In source machine there's 1GB RAM and 4GB on the target. I have the same problem both on wireless and ethernet network but on this last one the copy seems to proceed more smoothly and when it stall it then restart to copy till the end. What is gkrellm? I can't find it on my system. Here's the vmstat's output. At the second line the copy is stalled. 4 seconds after it restarts and finish. jkalcic@venus:~> vmstat 1 procs -----------memory---------- ---swap-- -----io---- -system-- ----cpu---- r b swpd free buff cache si so bi bo in cs us sy id wa 1 0 0 21292 2088 787468 0 0 239 36 533 2688 13 3 80 4 0 0 0 22036 2088 787472 0 0 0 0 9390 3512 0 34 66 0 0 0 0 23028 2088 787472 0 0 0 0 9254 3493 0 40 60 0 0 0 0 24904 2088 787472 0 0 0 0 9548 3502 0 37 63 0 10 0 0 26020 2088 787472 0 0 0 0 9572 3398 0 34 66 0 1 2 0 13796 2100 801032 0 0 9108 24 1881 1370 2 10 10 78 0 1 0 14840 2088 799640 0 0 12812 0 396 811 0 8 0 92 0 1 0 13936 2088 800444 0 0 13836 0 399 905 3 7 0 90 0 1 0 14892 2100 799024 0 0 11788 12 392 927 3 7 0 90 Jan -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org