Reading RELENG_6 kernel tunables?

Dev Tugnait dev at unixdaemon.org
Sun Nov 13 04:49:34 GMT 2005


Check /boot/defaults/loader.conf

#kern.maxssiz=""		# Set the max stack size
#kern.maxswzone=""		# Set the max swmeta KVA storage

under NOTES it shows you how to add it in the kernel just place your
settings in tunables instead hope that helps

On Sat, 2005-11-12 at 22:25 -0600, David Kelly wrote:
> On Nov 11, 2005, at 9:15 PM, Dev Tugnait wrote:
> 
> > sysctl -a; man sysctl
> >
> > On Fri, 2005-11-11 at 18:38 -0600, David Kelly wrote:
> >> /usr/src/sys/conf/NOTES says:
> >>
> >> # 2.  In /boot/loader.conf, set the tunables kern.maxswzone,
> >> #     kern.maxbcache, kern.maxtsiz, kern.dfldsiz, kern.maxdsiz,
> >> #     kern.dflssiz, kern.maxssiz and kern.sgrowsiz.
> >>
> >> Is loader.conf in some sort of different world than sysctl(8)?  
> >> Shouldn't
> >> I be able to at least view the current settings using sysctl? I
> >> understand these are things which may have to be set in stone  
> >> before the
> >> kernel starts running proper. Just want to see the current value.
> >>
> >> # sysctl kern.maxssiz
> >> sysctl: unknown oid 'kern.maxssiz'
> >>
> >> Show how can a view the current setting and confirm my messing with
> >> loader.conf took hold?
> 
> Been there. Done that. Read sysctl(8) before posting the first time.
> 
> # sysctl -a | grep kern.maxssiz
> #
> 
> No output. Did *you* try your suggestion before posting?
> 
> sysctl(8) says:
> 
>       -a      List all the currently available non-opaque values.   
> This option
>               is ignored if one or more variable names are specified  
> on the
>               command line.
> ...
>       -o      Show opaque variables (which are normally suppressed).   
> The for-
>               mat and length are printed, as well as a hex dump of  
> the first
>               sixteen bytes of the value.
> 
> -a didn't do the job, and neither did -o, so I asked here.
> 
> --
> David Kelly N4HHE, dkelly at HiWAAY.net
> ========================================================================
> Whom computers would destroy, they must first drive mad.
> 
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