include:
- vcpu_stat: add remaining kvm exits items to display
- display: modify filter display to support more display fields items
- vcp_stat: add Max Scheduling Delay time items to display
- args: add -p option
- key: add page up/down key response
- vcpu_stat: get vcpu stat list once per display instead of per vcpu
- proc: del /prc/pid/comm read
- display: del screen clear after key response
