svn commit: r230266 - in stable/9/sys: amd64/amd64 i386/i386
slw at zxy.spb.ru
Thu Mar 1 12:37:03 UTC 2012
On Tue, Jan 17, 2012 at 01:52:05PM +0000, Gavin Atkinson wrote:
> Author: gavin
> Date: Tue Jan 17 13:52:04 2012
> New Revision: 230266
> URL: http://svn.freebsd.org/changeset/base/230266
> Merge r229085 from head:
> Default to not performing the early-boot memory tests when we detect we
> are booting inside a VM. There are three reasons to disable this:
> o It causes the VM host to believe that all the tested pages or RAM are
> in use. This in turn may force the host to page out pages of RAM
> belonging to other VMs, or otherwise cause problems with fair resource
> sharing on the VM cluster.
> o It adds significant time to the boot process (around 1 second/Gig in
> o It is unnecessary - the host should have already verified that the
> memory is functional etc.
> Note that this simply changes the default when in a VM - it can still be
> overridden using the hw.memtest.tests tunable.
> Early MFC requested by: bz
How about similar behaviour for /boot/loader?
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