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On Wed, 26 May 1999, Unidata Support wrote: > > ------- Forwarded Message > > >To: Unidata Support <address@hidden> > >From: Mark Tucker <address@hidden> > >Subject: Linux LDM > >Organization: . > >Keywords: 199905261945.NAA13673 > > > Hi, I'm planning on upgrading our ldm and decoders shortly. I noticed > that there is no ldm.tar.Z linked from the ldm setup web > pages. I ftp'd in and found that the only ldm binary for Linux was > > /pub/binary/linux_2.2-i686/ldm-5.0.8.tar.Z > > Is this binary specifically for Linux kernel 2.2? Hiya, Yep it is. If it is is there a > compiled ldm for those of us still using the 2.0 series of kernels? No, I don't have a platform to compile the 2.0 series The Linux release was just created last month and UPC already moved to 2.2 But there is a Linux source release at: /home/ftp/pub/ldm5/linux.tar.Z I didn't want to make a linux binary because of the many different Linux configuration. If you build the source then the configurations are likely to be correct. > What is the difference between 2.0-i686 and 2.0-i586? We're running our > ldm on a PII-400. For the LDM, it doesn't matter. I believe the i-686 and i586 directories were made for other packages. ie udunits > > > Also, I noticed an e-mail while searching the support archives from David > Wojtowicz about some of the memory/caching problems he has found under > linux (Subject: Re: 19990520: Linux LDM memory problem). I just thought > I'd confirm some of the issues he mentioned and point out some of the > things I have observed related to this. > We run with a queue of about 400MB for our ldm for quite a while. > Stopping the ldm definitely takes some time and disk writing for > everything to exit completely. This generally takes several minutes for > every thing to settle down. Running "ldmadmin restart" has never > worked correctly as far as I can remember because of this (at least, that > has been my assumption). > Because Cirrus has ample memory (512 MB) there is enough room for the > file cache and buffer to co-exist with the other processes. I think this > is the main reason that we have not seen some of the delays in working > interactively on the ldm server that he cites. > I agree with your diagnosis, maybe the Linux folks will fix this problem. Solaris x86 has the memory management correct so I know it can be done. Robb... > Mark Tucker > Information Technology > Lyndon State College > address@hidden > > > > ------- End of Forwarded Message > =============================================================================== Robb Kambic Unidata Program Center Software Engineer III Univ. Corp for Atmospheric Research address@hidden WWW: http://www.unidata.ucar.edu/ ===============================================================================