--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/include/param.h	Sun Jan 06 19:27:03 2019 +0900
@@ -0,0 +1,12 @@
+#define NPROC        64  // maximum number of processes
+#define KSTACKSIZE 4096  // size of per-process kernel stack
+#define NCPU          8  // maximum number of CPUs
+#define NOFILE       16  // open files per process
+#define NFILE       100  // open files per system
+#define NBUF         10  // size of disk block cache
+#define NINODE       50  // maximum number of active i-nodes
+#define NDEV         10  // maximum major device number
+#define ROOTDEV       1  // device number of file system root disk
+#define MAXARG       32  // max exec arguments
+#define LOGSIZE      10  // max data sectors in on-disk log
+