/[webpac]/openisis/current/doc/limits.txt
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Annotation of /openisis/current/doc/limits.txt

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Revision 237 - (hide annotations)
Mon Mar 8 17:43:12 2004 UTC (20 years, 1 month ago) by dpavlin
File MIME type: text/plain
File size: 569 byte(s)
initial import of openisis 0.9.0 vendor drop

1 dpavlin 237 $
2     lengths in bits
3    
4     record length: 15 (32K)
5     mfrl signed short in MST
6     DOS version has 8K
7    
8     mfn: 24 bit (16M)
9     3 byte in IFP
10     mfn long in MST
11    
12     db size(record position): 29 bit (512M)
13     xrmfb/xrmfp 20+9 in XRF
14    
15     IFP occurence: 8 bit
16     IFP word count: 16 bit
17    
18     #fields in FDT: 200
19     #lines in FST: 600
20     #stopwords: 799
21     #characters PFT: 10000
22     #characters PFT result: 64000
23    
24     proposed limits:
25     record length: 24 bits (16M)
26     db size: 40 bit (1T)
27     index size: 32+13 bit (4G*8K blocks = 32T)
28     mfn: 32+8bit (256 databases per 4G records)
29    
30     this needs 64 bit xrf (40pos+24len)
31     and 80 bit ifp
32     $

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