ticks             140 kernel/defs.h  extern uint     ticks;
ticks              75 kernel/sysproc.c   ticks0 = ticks;
ticks              76 kernel/sysproc.c   while(ticks - ticks0 < n){
ticks              81 kernel/sysproc.c     sleep(&ticks, &tickslock);
ticks             104 kernel/sysproc.c   xticks = ticks;
ticks              10 kernel/trap.c  uint ticks;
ticks             169 kernel/trap.c      ticks++;
ticks             170 kernel/trap.c      wakeup(&ticks);