nfs-server twice as fast written to as read from

[Eric Anderson]

Claus Guttesen wrote:

>Hi.
>
>Is testing a nfs-server with current as of July 9'th.
>While copying to and from the server to two different
>hosts, I noticed that copying _to_ the server was
>twice as fast as copying _from_ the server. This was
>regardless of which host I tested from.
>
>Is using tcp, r/w-size 65536 on client, server:
>
>net.inet.tcp.sendspace: 65536
>net.inet.tcp.recvspace: 65536
>
>All hosts are on 100 Mbit/s.
>
>It takes 5 min. 30 sec. copying 3 GB to, 11 min. 43
>sec. from the nfs-server. Is there a penalty reading
>from the server in relation to nfs?
>  
>
It would be interesting to see how you were copying the data, and where 
it was coming from when writing, and going to when reading..

Eric

-- 
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Eric Anderson     Sr. Systems Administrator    Centaur Technology
Talk sense to a fool and he calls you foolish.
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