CPU load

From: Saurabh Bhatt (saurabhbhatt_at_fastmail.fm)
Date: 11/04/03

  • Next message: Eric de Redelijkheid: "Re: CPU load" 
    Date: 4 Nov 2003 02:14:09 -0800

    System - COMPAQ tru64 (ES45) with 4 CPUs
    Objective - To calculate the CPU utilisation of each CPU separately.

    Current Progress Level
    ======================
    Using the table() system call with TBL_SYSINFO flag, I get certain
    value for CPU utilisation (after some calculation with usr/nice/idle
    etc). I assume that this is the net CPU utilization for all 4 CPUs.

    I also tried table() function with TBL_PROCESSOR_INFO flag, but it
    returns me a value greater than 100 for "load_avg" (in struct
    tbl_processor).

    Is my above assumption for net CPU utilisation correct?
    Please help me find out a system call for calculating utilisation of
    each individual CPU on my machine.

    Please do not respond with user commands such as iostat/sar/aux etc.
    because due to a system limitation we cannot execute these commands
    from C code using "system" or "popen".

  • Next message: Eric de Redelijkheid: "Re: CPU load"

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