Date: Thu, 24 Feb 2005 14:07:07 -0600 From: Dan Nelson <dnelson@allantgroup.com> To: "O. Hartmann" <ohartman@mail.uni-mainz.de> Cc: freebsd-questions@freebsd.org Subject: Re: Setting MAXDSIZ, MAXSSIZ, DFLDSIZ via kernel OIDs? Message-ID: <20050224200705.GA2480@dan.emsphone.com> In-Reply-To: <421E2D6C.20203@mail.uni-mainz.de> References: <421E2D6C.20203@mail.uni-mainz.de>
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In the last episode (Feb 24), O. Hartmann said:
> Due to runtime problems of several F77 code based scientific software
> I increased possible data segment size and stack by the shown values.
>
> options MAXDSIZ=(2048UL*1024*1024)
> options MAXSSIZ=(1024UL*1024*1024)
> options DFLDSIZ=(1024UL*1024*1024)
>
> These changes implies building a new kernel and I would like to know
> how I can set these parameters via kern.l OIDs (in
> loader.conf.local).
I'm sure it's documented somewhere but I find it easier to grep for the
word TUNABLE in the kernel source :) Found these in subr_param.c:
TUNABLE_QUAD_FETCH("kern.maxdsiz", &maxdsiz);
TUNABLE_QUAD_FETCH("kern.dfldsiz", &dfldsiz);
TUNABLE_QUAD_FETCH("kern.maxssiz", &maxssiz);
--
Dan Nelson
dnelson@allantgroup.com
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