Virginia, > So LDM is mapping of LDM Q file to Memory ? Yup. Later version memory-map the product-queue better than earlier versions. > I'm unclear how an LDM upgrade would work around the mmap restrictions on > 32 bit system. > But are you saying we could try LDM upgrade to 6..9.8 or later that would > allow us to work around any restrictions in mapping? Later versions of the LDM allow you to obtain as large a product-queue as is possible on the system in question. The actual limit depends on the "programming environments" that are available. Some 32-bit systems nevertheless support large files (files larger than 4 GB). > We could add more memory over 4GB -- but then I am told we are facing > system limit on recognition of the new Memory that would mean a kernal > patch. > > We are building 64 bit replacements but right now we just want to reduce > latency on these old systems. Two upstream feeders have 4GB queues and we > think that increasing our queues to match would reduce latency. I don't think a larger queue will reduce latency, which is the difference in time between when a product is created and when it arrives. > Thanks > Virginia Regards, Steve Emmerson Ticket Details =================== Ticket ID: QYR-744357 Department: Support LDM Priority: Normal Status: Closed
NOTE: All email exchanges with Unidata User Support are recorded in the Unidata inquiry tracking system and then made publicly available through the web. If you do not want to have your interactions made available in this way, you must let us know in each email you send to us.