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 > > 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. -- John Baldwin
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