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Re: CONDUIT latencies--My two cents
- Subject: Re: CONDUIT latencies--My two cents
- Date: Fri, 16 Jul 1999 10:05:58 -0600 (MDT)
Robert,
Thanks for recommending Sun Solaris 7 x86, I have telling users that there
is memory problem with mmap on Linux. The only solution I have for the
Linux users is to add at least 750 megabytes RAM for the Linux systems.
Robb...
On Fri, 16 Jul 1999, Robert R. Mullenax wrote:
>
> We had a similar problem with the NMC2 feed when we tried it
> this spring. We were feeding from U. of Arizona and even though
> the connection to them was not great it was acceptable. It turns
> out that by the time the data filtered to them it was getting
> old and the last leg to us sent it over the 3600 sec mark.
> My feeling is that if you were really far from the main feed
> like we were there is no way to receive all of the data
> especially the large sets like the AVN/MRF NMC2 feed.
>
> On another note..just my two cents. I would highly recommend
> considering Sun Solaris 7 x86 for those having problems with Linux. It is
> free except for shipping for education/non-commercial use.
> We have been running the full NOAAPORT feed with all the GEMPAK
> and McIDAS decoders (except NIDS and NLDN) for over a year plus
> serves as the McIDAS and GEMPAK workstation.
> It also serves as a web server and generates images(CGI scrips) for
> our use from remote sites. The speed at which it generates
> the charts is great. I have never had any trouble with,
> and this is with IDE drives(400Mhz PII, 256 MB RAM). I have no doubt that
> in terms of raw performance Linux is faster, but I have had no complaints
> at all. Never a crash, or anything strange going on with the
> LDM(except things I caused, of course).
>
> Robert Mullenax
>
>
>
>
===============================================================================
Robb Kambic Unidata Program Center
Software Engineer III Univ. Corp for Atmospheric Research
address@hidden WWW: http://www.unidata.ucar.edu/
===============================================================================