Subject: kern/31966: scheduler multiprocessor problem
To: None <kern-bug-people@netbsd.org, gnats-admin@netbsd.org,>
From: None <yamt@mwd.biglobe.ne.jp>
List: netbsd-bugs
Date: 11/01/2005 09:28:00
>Number:         31966
>Category:       kern
>Synopsis:       scheduler multiprocessor problem
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Tue Nov 01 09:28:00 +0000 2005
>Originator:     YAMAMOTO Takashi <yamt@mwd.biglobe.ne.jp>
>Release:        NetBSD 3.99.10
>Organization:

>Environment:
	
	
System: NetBSD kaeru 3.99.10 NetBSD 3.99.10 (build.kaeru.xen.nodebug) #21: Tue Nov 1 15:52:04 JST 2005 takashi@kaeru:/home/takashi/work/kernel/build.kaeru.xen.nodebug i386
Architecture: i386
Machine: i386
>Description:
	- decay of p_estcpu is a function of loadavg, which is
	  independent from number of cpus.
	- p_estcpu is increased on each cpus by a constant.
	
	assuming enough number of runnable lwps,
	the above two get more imbalanced if a system has more cpus.
>How-To-Repeat:
>Fix:
	make runqueue and loadavg per-cpu?

>Unformatted: