diff options
| author | christos <christos@NetBSD.org> | 2014-02-01 22:42:45 +0000 |
|---|---|---|
| committer | christos <christos@NetBSD.org> | 2014-02-01 22:42:45 +0000 |
| commit | ab9ca703e90d5a09082eac263a5bad16ae92deae (patch) | |
| tree | 7189e441a6734283aff020e01c57f79cc4ca4a27 /lib | |
| parent | b93a3b964fbe3932af477586d53760928eaf3719 (diff) | |
mention how HZ affects us
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/libc/sys/nanosleep.2 | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/lib/libc/sys/nanosleep.2 b/lib/libc/sys/nanosleep.2 index f25eaf4d3c2..d7bcdb44287 100644 --- a/lib/libc/sys/nanosleep.2 +++ b/lib/libc/sys/nanosleep.2 @@ -1,4 +1,4 @@ -.\" $NetBSD: nanosleep.2,v 1.14 2013/12/25 00:58:50 dholland Exp $ +.\" $NetBSD: nanosleep.2,v 1.15 2014/02/01 22:42:45 christos Exp $ .\" .\" Copyright (c) 1986, 1991, 1993 .\" The Regents of the University of California. All rights reserved. @@ -29,7 +29,7 @@ .\" .\" @(#)sleep.3 8.1 (Berkeley) 6/4/93 .\" -.Dd October 1, 2012 +.Dd February 1, 2014 .Dt NANOSLEEP 2 .Os .Sh NAME @@ -163,3 +163,15 @@ The .Fn clock_nanosleep function conforms to .St -p1003.1j-2000 . +.Sh BUGS +The +.Nx +kernel is not tickless, so the maximum sleep resolution is determined +by the value of +.Dv HZ +which is by default +.Dv 100 +in most architectures. +This means that a request to sleep for less than +.Dv 10ms +(1 / HZ seconds), is rounded up to that. |
