개요

• 솔라나라에 설명된 어플리케이션에 대해 맨 페이지를 찾아 출력한다.
• MAN 페이지에 대한 설명은 윈디하나의 솔라나라: MAN 페이지을 참고하자.
• svcadm(8)을 검색하려면 섹션에서 8 을 선택하고, 맨 페이지 이름에 svcadm을 입력하고 검색을 누른다.

clock(3c)

Standard C Library Functions                                         clock(3C)



NAME
       clock - report CPU time used

SYNOPSIS
       #include <time.h>

       clock_t clock(void);

DESCRIPTION
       The  clock()  function returns the amount of CPU time (in microseconds)
       used since the first call to clock() in the calling process.  The  time
       reported is the sum of the user and system times of the calling process
       and its terminated child  processes  for  which  it  has  executed  the
       wait(3C) function, the pclose(3C) function, or the system(3C) function.

RETURN VALUES
       Dividing  the value returned by clock() by the constant CLOCKS_PER_SEC,
       defined in the <time.h> header, will give the time in seconds.  If  the
       process  time  used  is  not  available or cannot be represented, clock
       returns the value (clock_t) −1.

USAGE
       The value returned by clock() is defined in microseconds  for  compati‐
       bility  with  systems that have CPU clocks with much higher resolution.
       Because of this, the value returned will wrap around after accumulating
       only 2147 seconds of CPU time (about 36 minutes).

ATTRIBUTES
       See attributes(7) for descriptions of the following attributes:


       tab()  box; cw(2.75i) |cw(2.75i) lw(2.75i) |lw(2.75i) ATTRIBUTE TYPEAT‐
       TRIBUTE VALUE _ Interface StabilityCommitted _ MT-LevelMT-Safe _  Stan‐
       dardSee standards(7).


SEE ALSO
       times(2), popen(3C), system(3C), wait(3C), attributes(7), standards(7)



Oracle Solaris 11.4               24 Jul 2002                        clock(3C)