Messages in this thread | | | Subject | Re: Kernel 2.6.15.1 + NFS is 4 times slower than FTP!? | From | Trond Myklebust <> | Date | Tue, 17 Jan 2006 14:01:42 -0500 |
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On Tue, 2006-01-17 at 13:55 -0500, Justin Piszcz wrote: > Did you get my other e-mail? > > $ cp file /nfs/destination > $ lftp> put file
Yes, but how big a file is this? Is it significantly larger than the amount of cache memory on the server? As I said, if ftp is failing to sync the file to disk, then you may be comparing apples and oranges.
Cheers, Trond
> 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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