1 #define NPROC 64 // maximum number of processes 2 #define PAGE 4096 // granularity of user-space memory allocation 3 #define KSTACKSIZE PAGE // size of per-process kernel stack 4 #define NCPU 8 // maximum number of CPUs 5 #define NOFILE 16 // file descriptors per process 6 #define NFD 100 // file descriptors per system 7 #define NREQUEST 100 // outstanding disk requests 8 #define NBUF 10 // size of disk block cache 9 #define NINODE 100 // maximum number of active i-nodes 10 #define NDEV 10 // maximum major device number 11