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NOTICE: This version of the NSF Unidata web site (archive.unidata.ucar.edu) is no longer being updated.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 - more explicitly: ps aux | grep ^ldmAssuming for a moment that you are running decoders or triggers from the pqact exe . . . your issue probably isn't ldm itself (rpc.ldmd, pqact, etc.) but rather some decoder or piped application. Just guessing.
Also, if you do a "free" just to make sure all your physical memory is registered by the OS.
Stonie On 10/24/2010 11:19 PM, Steve Emmerson wrote:
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 -JeffOn 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/_______________________________________________ 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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