gantt
    title A Gantt Diagram
    dateFormat x
    axisFormat %Lms
    section 一道程序
    A: 0, 60ms
    B: 70ms
    C: 60ms
    section 多道程序
    A-Compute1: 0, 20ms
    A-I/O: 20, 30ms
    B-Compute1: 20, 30ms
    A-Compute2: 50, 10ms
    B-Compute1: 10ms
    B-I/O: 20ms
    C-Compute1: 70, 10ms
    C-I/O: 30ms
    B-Compute2: 90, 10ms
    C-Compute2: 110, 20ms

gantt
    title 时间关系图
    dateFormat x
    axisFormat %Lms

    B-CPU: bc1, 0, 20ms
    B-DEV1: bd1, after bc1, 50ms

    A-CPU: ac1, after bc1, 25ms
    A-DEV1: ad1, after ac1, 39ms
    
    B-CPU: bc2, after bd1, 20ms
    B-DEV2: bd2, after bc2, 20ms
    A-CPU: ac2, after bc2, 20ms
    
    B-CPU: bc3, after bd2, 10ms
    A-DEV2: ad2, after ac2, 20ms
    B-DEV1: bd11, after bc3, 20ms
    A-CPU: ac3, after ad2, 20ms
    

    A-DEV1: ad3, after ac3, 20ms
    B-CPU: bc4, after ac3, 45ms
    A-CPU: ac4, after bc4, 20ms

gantt
    title 时间关系图
    dateFormat H:mm
    axisFormat %H:%M

    AS1: 8:00, 20m
    # AS1 => 40min

    AS2: 8:20, 5m
    # AS2 => 30min

    AS3: 8:25, 20m

    AS5: 8:45, 5m

    AS6: 8:50, 10m

    AS4: 9:00, 25m

    AS2: 9:25, 30m

    AS1: 9:55, 40m

gantt
    title 时间关系图
    dateFormat x
    axisFormat %L

    P1: 0, 10ms
    # ==> 8ms

    P2: 10, 25ms
    # ==> 1.5ms

    P4: 35, 100ms
    
    P2: 135, 15ms
    P3: 150, 80ms
    P1: 230, 80ms