ian reinhart geiser on Mon, 18 Feb 2002 13:40:11 +0100


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[PLUG] NFS udp vs tcp transfers


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Greetings
	I am trying to tune NFS for my build cluster here and have some questions 
with some of the options.  I have been wondering what is the difference 
between using udp and tcp for nfs connection reliability and speed.  I am 
assuming tcp is more reliable but udp is faster.  

For me reliability is more important but I will take all of the speed I can 
get.

My last question is about rsize and wsize, I read somewhere that if you change 
it to 8k chunks you get better performance, is there an opimal value for 
this?  Are larger chunks better for a high latency network, such as wireless?  
Are smaller chunks better for 10bT networks?   Has anyone ever looked into 
this?

Thanks
	-ian reinhart geiser

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