Conference hydra::axp-developer

3578.0. "Landmark Systems Corporation" by HYDRA::AXPDEVELOPER (Alpha Developer support) Mon May 05 1997 10:10

    Company Name :  Landmark Systems Corporation
    Contact Name :  Shyam R. Harohalli
    Phone        :  (703) 902 8124
    Fax          :  
    Email        :  [email protected]
    Date/Time in :   5-MAY-1997 09:10:22
    Entered by   :  Mark Schafer
    SPE center   :  MRO

    Category     :  unix
    OS Version   :  
    System H/W   :  


    Brief Description of Problem:
    -----------------------------

From:	SMTP%"[email protected]"  2-MAY-1997 18:34:09.28
To:	[email protected]
CC:	
Subj:	CPU Information.

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Subject: CPU Information.
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In-Reply-To: <[email protected]> from "[email protected]" at Apr 14, 97 02:58:29 pm
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	Hello,
	I am trying to collect certain information regarding the cpu
	utilization.  I used the (getsysinfo(GSI_CPU_INFO, &cpuin_d,...)
	where cpuin_d is a structure of type cpu_info, defined in
	/usr/include/machine/hal_sysinfo.h.

	The structure cpu_info is defined as follows:
struct cpu_info {
        int     current_cpu;
        int     cpus_in_box;
        int     cpu_type;
        int     ncpus;
        ulong_t cpus_present;
        ulong_t cpus_running;
        long    unused[4];      /* future expansion */
};


	I happened to be comparing this cpu structures with other platforms
	- HP-UX, AIX and Solaris.  In all these three, the cpu_info returns
	additional statistics such as CPU-states, context swithces.  Is there
	a method in Digital UNIX, where we can get these statistics per 
	processor.  I have given a sample of cpu-info structure in Solaris
	below.  This info is extracted using kstat interface on Solaris.	

---------
typedef struct cpu_sysinfo {
    ulong   cpu[CPU_STATES]; /* CPU utilization         */
    ulong   wait[W_STATES]; /* CPU wait time breakdown      */
    ulong   bread;      /* physical block reads         */
    ulong   bwrite;     /* physical block writes (sync+async)   */
    ulong   lread;      /* logical block reads          */
    ulong   lwrite;     /* logical block writes         */
    ulong   phread;     /* raw I/O reads            */
    ulong   phwrite;    /* raw I/O writes           */
    ulong   pswitch;    /* context switches         */
    ulong   trap;       /* traps                
.
.
---------
	Thanks,

	Shyam
	

-- 
---------------------------------------------------------
Shyam R. Harohalli
Landmark Systems Corporation
8000 Towers Crescent Drive
Vienna, Virginia 22182-2700
Telephone:	(703) 902 8124 (Work)
		(703) 352 4929 (Home)
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