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authorUlrich Drepper <drepper@redhat.com>2001-02-11 19:15:00 +0000
committerUlrich Drepper <drepper@redhat.com>2001-02-11 19:15:00 +0000
commite4cf522929cc33ea951756509b0e4f166f0da59a (patch)
treee072b02cf33d98bde5e8e82a9ddfa4316b299020 /manual/resource.texi
parent5b8d5ae180f8e9d899a28c96bae77f1e8ef29cf8 (diff)
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Update.
	* sysdeps/generic/getsysstat.c: Change return value of get_phys_pages
	and get_avphys_page to long int.
	* sysdeps/unix/sysv/linux/getsysstat.c: Likewise.
	* include/sys/sysinfo.h: Likewise.
	* sysdeps/generic/sys/sysinfo.h: Likewise.
	* sysdeps/unix/sysv/linux/sys/sysinfo.h: Likewise.
Diffstat (limited to 'manual/resource.texi')
-rw-r--r--manual/resource.texi19
1 files changed, 19 insertions, 0 deletions
diff --git a/manual/resource.texi b/manual/resource.texi
index 48e0ac0b72..9fc8b6494b 100644
--- a/manual/resource.texi
+++ b/manual/resource.texi
@@ -1401,3 +1401,22 @@ processors and so the call
 @noindent
 returns the number of processors which are currently inline (i.e.,
 available).
+
+@cindex load average
+Before starting more threads it should be checked whether the processors
+are not already overused.  Unix systems calculate something called the
+@dfn{load average}.  This is a number indicating how many processes were
+running.  This number is average over different periods of times
+(normally 1, 5, and 15 minutes).
+
+@comment stdlib.h
+@comment BSD
+@deftypefun int getloadavg (double @var{loadavg}[], int @var{nelem})
+This function gets the 1, 5 and 15 minute load averages of the
+system. The values are placed in @var{loadavg}.  @code{getloadavg} will
+place at most @var{nelem} elements into the array but never more than
+three elements.  The return value is the number of elements written to
+@var{loadavg}, or -1 on error.
+
+This function is declared in @file{stdlib.h}.
+@end deftypefun