Date: Sat, 30 Jul 2011 16:01:36 -0400 From: John Baldwin <jhb@FreeBSD.org> To: Bjoern A. Zeeb <bz@FreeBSD.org> Cc: svn-src-head@freebsd.org, svn-src-all@freebsd.org, src-committers@freebsd.org Subject: Re: svn commit: r224516 - in head/sys: amd64/amd64 i386/i386 pc98/pc98 Message-ID: <D7B5C4D2-350D-43FA-9E40-DCE166281F7D@FreeBSD.org> In-Reply-To: <201107301333.p6UDX5ca001997@svn.freebsd.org> References: <201107301333.p6UDX5ca001997@svn.freebsd.org>
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On Jul 30, 2011, at 9:33 AM, Bjoern A. Zeeb wrote: > Author: bz > Date: Sat Jul 30 13:33:05 2011 > New Revision: 224516 > URL: http://svn.freebsd.org/changeset/base/224516 >=20 > Log: > Introduce a tunable to disable the time consuming parts of bootup > memtesting, which can easily save seconds to minutes of boot time. > The tunable name is kept general to allow reusing the code in > alternate frameworks. Why the 'tmpul' variable? The TUNABLE_*_FETCH() macros will not modify = the parameter if the environment variable is missing or unparseable. Lots of places = depend on this all over the kernel already, so you can depend on it here. --=20 John Baldwin
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