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Article #6965

How to avoid calling time(2)

#6965
From: Bernard Fouche
Date: Wed, 27 Jan 1993 19:53
29 lines
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 !
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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