system slowdown - vnode related

[David Schultz]

On Mon, Jun 09, 2003, Masachika ISHIZUKA wrote:
>   Hi, David-san.
>   I have still vnodes problem in 4.8-stable with /sys/kern/vfs_subr.c
> 1.249.2.30.
> 
>   310.locate of weekly cron make slow down or panic.  Values of sysctl
> are shown as follows when they reached slow down.
> 
> (1) #1 machine (Celeron 466 with 256 mega byte rams)
> 
>   % sysctl kern.maxvnodes
>   kern.maxvnodes: 17979
>   % sysctl vm.zone | grep VNODE
>   VNODE:           192,        0,  18004,    122,    18004

This looks pretty normal to me for a quiescent system.  Ordinarily
I would actually suggest raising maxvnodes if you have lots of
little files.  Does the number of vnodes shoot up when 310.locate
runs?  Did you get a backtrace from the panics?  Perhaps the VM
page cache is still interfering...