root/kernel/param.h

INCLUDED FROM

   1 #define NPROC        64  // maximum number of processes
   2 #define NCPU          8  // maximum number of CPUs
   3 #define NOFILE       16  // open files per process
   4 #define NFILE       100  // open files per system
   5 #define NINODE       50  // maximum number of active i-nodes
   6 #define NDEV         10  // maximum major device number
   7 #define ROOTDEV       1  // device number of file system root disk
   8 #define MAXARG       32  // max exec arguments
   9 #define MAXOPBLOCKS  10  // max # of blocks any FS op writes
  10 #define LOGSIZE      (MAXOPBLOCKS*3)  // max data blocks in on-disk log
  11 #define NBUF         (MAXOPBLOCKS*3)  // size of disk block cache
  12 #define FSSIZE       2000  // size of file system in blocks
  13 #define MAXPATH      128   // maximum file path name
  14 #define USERSTACK    1     // user stack pages
  15