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Annotation of researchv8dc/cmd/refer/tick.c, revision 1.1

1.1     ! root        1: /* time programs */
        !             2: # include "stdio.h"
        !             3: # include "sys/types.h"
        !             4: # include "sys/timeb.h"
        !             5: struct tbuffer {
        !             6:        long    proc_user_time;
        !             7:        long    proc_system_time;
        !             8:        long    child_user_time;
        !             9:        long    child_system_time;
        !            10: };
        !            11: static long start, user, system;
        !            12: tick()
        !            13: {
        !            14:        struct tbuffer tx;
        !            15:        struct timeb tp;
        !            16:        times (&tx);
        !            17:        ftime (&tp);
        !            18:        user =  tx.proc_user_time;
        !            19:        system= tx.proc_system_time;
        !            20:        start = tp.time*1000+tp.millitm;
        !            21: }
        !            22: tock()
        !            23: {
        !            24:        struct tbuffer tx;
        !            25:        struct timeb tp;
        !            26:        float lap, use, sys;
        !            27:        if (start==0) return;
        !            28:        times (&tx);
        !            29:        ftime (&tp);
        !            30:        lap = (tp.time*1000+tp.millitm-start)/1000.;
        !            31:        use = (tx.proc_user_time - user)/60.;
        !            32:        sys = (tx.proc_system_time - system)/60.;
        !            33:        printf("Elapsed %.2f CPU %.2f (user %.2f, sys %.2f)\n",
        !            34:                lap, use+sys, use, sys);
        !            35: }

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