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Re: disks
- To: Peter Kammel <kammel@npl.uiuc.edu>
- Subject: Re: disks
- From: Frederick Gray <fegray@berkeley.edu>
- Date: Sun, 4 Dec 2005 09:13:43 -0800
- Cc: Brendan Kiburg <kiburg@npl.uiuc.edu>
- In-reply-to: <Pine.LNX.4.21.0512040837330.20934-100000@one.npl.uiuc.edu>
- References: <Pine.LNX.4.21.0512040837330.20934-100000@one.npl.uiuc.edu>
- User-agent: Mutt/1.5.9i
> I completely agree with your elog. We simply cannot afford
> to turn off the online analyzer. For mu+ I would
> turn off the fadc extraction and then one of the
> lazy loggers.
I fully agree that we need the online analyzer as an absolute requirement.
I am interested to know, however, whether turning off the online
analyzer actually did increase the archiving rate. In my model of
the situation, it would not, since it accesses the data without touching
the disk. My impression is that we are limited by disk bandwidth, not
by the processor load. Can you confirm this?
Thanks,
-- Fred
-- Fred Gray / Visiting Postdoctoral Researcher --
-- Department of Physics / University of California, Berkeley --
-- fegray@berkeley.edu / phone 510-642-2438 / fax 510-642-9811 --
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- Re: disks
- From: Brendan Kiburg <kiburg@npl.uiuc.edu>