Date: Wed, 23 Apr 2008 14:14:02 +0400 From: pluknet <pluknet@gmail.com> To: "Luigi Rizzo" <rizzo@iet.unipi.it> Cc: current@freebsd.org Subject: Re: reading kernel tunables from userland ? Message-ID: <a31046fc0804230314y473a6423g242e637286794449@mail.gmail.com> In-Reply-To: <20080423100759.GA37110@onelab2.iet.unipi.it> References: <20080423100759.GA37110@onelab2.iet.unipi.it>
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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 ?
wbr,
pluknet
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