linux-kernel - Re: tracing lost time in early boot

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Message-ID: <57832.148.87.67.141.1284666548.squirrel@www.xenotime.net>
Date:	Thu, 16 Sep 2010 12:49:08 -0700 (PDT)
From:	"Randy Dunlap" <rdunlap@...otime.net>
To:	"Martin Pirker" <lkml.collector@...il.com>
Cc:	"LKML" <linux-kernel@...r.kernel.org>
Subject: Re: tracing lost time in early boot


On Sun, August 1, 2010 7:28 am, Martin Pirker wrote:
> Hi...
>
>
> My machine "loses" quite some time at boot:
> ...
> [    0.006881] ACPI: Core revision 20100428
> [   45.284319] DMAR: Host address width 36
> ...
>
>
> I digged through Documentation and tried some boot options but so far
> failed, so could someone please point me to the right way to debug where
> exactly the kernel is spending this time during boot?

need more info.

What kind of machine is it?

Please post your kernel .config file and boot options used.

-- 
~Randy

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