Elena Korolkova wrote:
> Hi
>
> Slightly dufferent question.
>
> What RFIO buffer size you are using. I tried 128, 512 and 1024 during
> this test abd have impression that 128K (defaul one) works better for us.
I don't think the buffer size makes any difference for file stager as
that's using rfcp, rather than a direct POSIX connection (the buffer
will only be used by an application that opens a connection with the
RFIO_READBUF mode).
In general we now use the default 128kB default with the large files.
Efficiency's a bit poor but bandwidth is at least low and predictable.
John
--
Dr John Bland, Systems Administrator
Room 220, Oliver Lodge
Particle Physics Group, University of Liverpool
Mail: [log in to unmask]
Tel : 0151 794 2911
"I canna change the laws of physics, Captain!"
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