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DSP(C6x) usage on DM8148?

Chuan-Hsiu Lee
Intellectual 590 points

Hi,

I want to reduce power consumption on our platform, but I don't know below information.

1. How to get the DSP (C6x) usage when AAC encoder is running?

2. How to disable SGX and HDMI clock when I load M3 to memory? 

Thanks

  • 0
    TI__Guru 59700 points

     

    1. How to get the DSP (C6x) usage when AAC encoder is running?

      - Vsys_printDetailedStatistics() prints the load of all cores including C6x on the console. There is no API to programmatically get the processor load though.

    For second question it may help if you make a separate post.

  • 0 in reply to Badri Narayanan
    Intellectual 590 points

    Hi, 

    I modify  MultiCh_prfLoadPrint as below:

    Int32 MultiCh_prfLoadPrint(Bool printTskLoad,Bool resetTskLoad)
    {
    UInt32 numProcs, procId;

    numProcs = sizeof(gMultiCh_enabledProcs)/sizeof(gMultiCh_enabledProcs[0]);

    for(procId=0; procId<numProcs; procId++)
    {
    SystemCommon_PrintStatus printStatus;
    OSA_printf("display cpu usage(%d)\n",gMultiCh_enabledProcs[procId]);
    memset(&printStatus, 0, sizeof(printStatus));

    printStatus.printCpuLoad = TRUE;
    printStatus.printTskLoad = printTskLoad;
    System_linkControl(
    gMultiCh_enabledProcs[procId],
    SYSTEM_COMMON_CMD_PRINT_STATUS,
    &printStatus,
    sizeof(printStatus),
    TRUE);
    if (resetTskLoad)
    {
    System_linkControl(
    gMultiCh_enabledProcs[procId],
    SYSTEM_COMMON_CMD_CPU_LOAD_CALC_RESET,
    NULL,
    0,
    TRUE);
    }
    OSA_waitMsecs(500); // allow for print to complete
    }
    return 0;
    }

    Then I call Vsys_printDetailedStatistics to display cpu usage. but it cannot print DSP usage. 

    [host] display cpu usage(536870975)
    [m3vpss ]
    [m3vpss ] 13117317: LOAD: CPU: 9.9% HWI: 1.5%, SWI:1.6%
    [m3vpss ]
    [m3vpss ] 13117318: LOAD: TSK: IPC_OUT_M30 : 0.8%
    [m3vpss ] 13117318: LOAD: TSK: IPC_FRAMES_OUT1 : 0.5%
    [m3vpss ] 13117318: LOAD: TSK: CAPTURE : 0.5%
    [m3vpss ] 13117318: LOAD: TSK: NSF0 : 0.5%
    [m3vpss ] 13117319: LOAD: TSK: DEI3 : 1.0%
    [m3vpss ] 13117320: LOAD: TSK: DUP0 : 0.1%
    [m3vpss ] 13117320: LOAD: TSK: Scalar0 : 0.7%
    [m3vpss ] 13117320: LOAD: TSK: Scalar1 : 0.6%
    [m3vpss ] 13117321: LOAD: TSK: MERGE0 : 0.2%
    [m3vpss ] 13117321: LOAD: TSK: MISC : 1.9%
    [m3vpss ]

    [host] display cpu usage(268435519)
    [m3video]
    [m3video] 13117822: LOAD: CPU: 5.8% HWI: 0.6%, SWI:0.8%
    [m3video]
    [m3video] 13117822: LOAD: TSK: IPC_IN_M30 : 0.2%
    [m3video] 13117823: LOAD: TSK: IPC_BITS_OUT0 : 0.6%
    [m3video] 13117823: LOAD: TSK: ENC0 : 1.3%
    [m3video] 13117823: LOAD: TSK: ENC_PROCESS_TSK_0 : 2.0%
    [m3video] 13117823: LOAD: TSK: MISC : 0.3%
    [m3video]

    [host] display cpu usage(63)

     *** Encode Bitstream Received Statistics ***

  • 0 in reply to Chuan-Hsiu Lee
    Intellectual 590 points

    Hi, 

    When I rebuild all module, it can display DSP usage.

    Thanks