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Old 12-01-2008, 04:59 PM
Jeff Moyer
 
Default RFC: Changing default filesystem parameters for power management reasons

Matthew Garrett <mjg@redhat.com> writes:

> On Fri, Nov 28, 2008 at 12:33:53PM +0000, David Woodhouse wrote:
>> On Thu, 2008-11-27 at 16:44 +0000, Matthew Garrett wrote:
>> > It would be nice to have the kernel export disk access via a socket or
>> > something rather than the currently available debug option, which is to
>> > dump to dmesg which then triggers log writes which triggers more
>> > messages and fail occurs.
>>
>> Does blktrace trigger log writes?
>
> I was thinking of the vm_dump interface - I'd never noticed blktrace,
> which looks pretty much ideal. Now we just need a user-friendly
> front-end.

Define user-friendly. There is blkparse, which will format things for
you.

Cheers,
Jeff

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