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Article #6965How to avoid calling time(2)
From: Bernard Fouche
Date: Wed, 27 Jan 1993 19:53
Date: Wed, 27 Jan 1993 19:53
29 lines
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1544 bytes
Hi wizards! I run many applications that need to call very often the time(2) system call. I do not see how I could design my programs to do without having to get the result of time(2) very ofen. But I wonder if there is a way (on a 486 running Dell Unix 2.0 at least) to get time information without having to do a system call each time. For instance, does someone know if I can get a pointer toward the value of time that is stored somewhere in the system ? Of course this should work with processes having no suid bit set nor running as root and files like /unix or /dev/kmem must stay to be not readable by anyone :-) Or am I going the wrong way because the time(2) system call is so light that I should try to find other means to reduce the impact of my applications on the system ? Any comment or hint welcome ! Thank you ! -- -------------------------------------------------------------------------- Bernard Fouche VOX : +(33) (1) 48.04.56.30 FAX : (33) (1) 48.04.98.95 Email : bernard@cpio1.fr.mugnet.org Postal Mail : CPIO S.A., 13-15 Rue de la Verrerie, 75004 Paris, France
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arc1-ca.pugleaf.net!sparky!uunet!charon.amdahl.com!amdahl!rtech!pacbell.com!ames!haven.umd.edu!mimsy!nmrdc1!frmug!cpio1!bernardShow Full Headers
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Path: arc1-ca.pugleaf.net!sparky!uunet!charon.amdahl.com!amdahl!rtech!pacbell.com!ames!haven.umd.edu!mimsy!nmrdc1!frmug!cpio1!bernard From: bernard@cpio1.fr.mugnet.org (Bernard Fouche) Newsgroups: comp.unix.wizards Subject: How to avoid calling time(2) Message-ID: <1993Jan27.195309.15120@cpio1.fr.mugnet.org> Date: 27 Jan 93 19:53:09 GMT Sender: bernard@cpio1.fr.mugnet.org (Bernard Fouche) Organization: CPIO S.A. Lines: 29