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NOTICE: This version of the NSF Unidata web site (archive.unidata.ucar.edu) is no longer being updated.
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Jeff, The drop in memory-usage upon shutting-down the LDM could be because the operating-system no longer has to service the LDM. I suggest that you explicitly determine the memory-usage of the LDM by using the ps(1) utility and adding the the values reported in the SIZE column. I suspect the total will be way less than the amount of memory you have. --Steve On 10/24/2010 04:06 PM, Jeff Lake - Admin wrote: > Steve .. > it sure looks like it .. > if I shut LDM down memory usage will fall off drastically > more then what I the queue set for.. > if Linux is doing that, seems kinda inefficient to me ? > > Gilbert, > what does BillyBob know about a real operating system ;} > > system loads are below or just flirting with 1, only time the loads > bounce over 1 is when scour runs > > > -Jeff > > >> On Sun, 24 Oct 2010, Steve Emmerson wrote: >> >>> Jeff, >>> >>> How do you know the LDM is using the memory? >>> >>> On a Linux system, the operating-system will consume as much memory as >>> it can without interfering with user processes. >> >> For the first few years of running Linux, I had wondered the same thing. >> Look at your load average, for starters. If you're below 1, chances >> are it's all good. 12 GB of RAM is fine, and you'll never use that >> much. Bill Gates told me so! ;-) >> >> I have found that running 1.2 GB queue out of /dev/shm for my LDM, >> even with level 2 data coming in, works fine. It is on my NOAAport >> ingest server, whose load average most of the time is flat out zero. >> It does jump up to about .50 when NOAAPort is closer to it's current >> 10 mb/sec max. >> >> ******************************************************************************* >> >> Gilbert Sebenste >> ******** >> (My opinions only!) >> ****** >> Staff Meteorologist, Northern Illinois University >> **** >> E-mail: >> sebenste@xxxxxxxxxxxxxxxxxxxxx *** >> web: http://weather.admin.niu.edu ** >> ******************************************************************************* >> >> >> _______________________________________________ >> ldm-users mailing list >> ldm-users@xxxxxxxxxxxxxxxx >> For list information or to unsubscribe, visit: >> http://www.unidata.ucar.edu/mailing_lists/ > > _______________________________________________ > ldm-users mailing list > ldm-users@xxxxxxxxxxxxxxxx > For list information or to unsubscribe, visit: > http://www.unidata.ucar.edu/mailing_lists/
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