Re: Kernel 2.6.15.1 + NFS is 4 times slower than FTP!?

From: Justin Piszcz
Date: Tue Jan 17 2006 - 13:53:52 EST


Did you get my other e-mail?

$ cp file /nfs/destination
$ lftp> put file


On Tue, 17 Jan 2006, Trond Myklebust wrote:

On Tue, 2006-01-17 at 13:38 -0500, Justin Piszcz wrote:
Writing from SRC(A) -> DST(B).
I have not tested reading, but as I recall there were similar speed issues
going the other way too, although I have not tested it recently.

How were you testing it? I'm not sure that ftp will actually sync your
file to disk (whereas that is pretty much mandatory for an NFS server),
so unless you are transferring very large files, you would expect to see
a speed difference due to caching of writes by the server.

Cheers,
Trond

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