kern/37743: if_wm.c 1.150 performance regression

[yamt%mwd.biglobe.ne.jp@localhost]

>Number:         37743
>Category:       kern
>Synopsis:       if_wm.c 1.150 performance regression
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Fri Jan 11 02:55:00 +0000 2008
>Originator:     YAMAMOTO Takashi <yamt%mwd.biglobe.ne.jp@localhost>
>Release:        NetBSD 4.99.49
>Organization:
        
>Environment:
System: NetBSD 4.99.49
Architecture: i386
Machine: i386
>Description:
        see the following, results of sysbench --test=oltp --db-driver=mysql.
        the server is using the wm driver of each versions.
        ftp://ftp.netbsd.org/pub/NetBSD/misc/yamt/5/wm.mysql.jpg
>How-To-Repeat:
        
>Fix: