Author: Danniel Corbit
Date: 00:04:14 09/01/98
Go up one level in this thread
1. First create a tiny file and save it. 2. Import as large a file as you like. 3. If you want to import wall, you can do it, but you should have 1GB ram if you want it to be fast. I have found that it takes about 1.2 times the size of the raw PGN file to hold the CDB database CDB is incredibly memory hungry. Peter Klausler caches the whole thing at once in memory. Fast, but expensive. I would not try to import a file larger than 3/4 the size of your physical ram. You can import larger, but it is not much use. I have a similar config (128 meg ram and 500 meg swap) and importing a 150 meg PGN file takes about 15 hrs. I would not dream of importing rock or wall with it. What is _very_ useful is to take a large file like rock and split it into ECO openings. Import each of these, and they will fit. You can do all kinds of interesting experimentation with these. I do wish that he would map views of subsets of the file instead of the whole thing, but that would have a performance cost for those that fit 100% without such windowing.
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