Date: Wed, 23 Apr 2008 13:50:06 +0200 From: Luigi Rizzo <rizzo@iet.unipi.it> To: pluknet <pluknet@gmail.com> Cc: current@freebsd.org Subject: Re: reading kernel tunables from userland ? Message-ID: <20080423115006.GA37818@onelab2.iet.unipi.it> In-Reply-To: <a31046fc0804230314y473a6423g242e637286794449@mail.gmail.com> References: <20080423100759.GA37110@onelab2.iet.unipi.it> <a31046fc0804230314y473a6423g242e637286794449@mail.gmail.com>
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On Wed, Apr 23, 2008 at 02:14:02PM +0400, pluknet wrote:
> Hello,
>
> 2008/4/23 Luigi Rizzo <rizzo@iet.unipi.it>:
> > sorry for the possibly naive question, but is there
> > a way other than sysctl to read the value of kernel 'tunable'
> > variables ?
> >
> > E.g. in if_nfe.c i see
> >
> > TUNABLE_INT("hw.nfe.msi_disable", &msi_disable);
> > TUNABLE_INT("hw.nfe.msix_disable", &msix_disable);
> > TUNABLE_INT("hw.nfe.jumbo_disable", &jumbo_disable);
> >
> > but sysctl is reporting none of them.
> >
> > I seem to remember that there was a separate command to access
> > kernel tunables,
> > but cannot remember which one, and neither 'man -k tunable'
> > nor a google search return any useful answer...
>
> Perhaps are you about kenv ?
yes, thanks...
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