Re: udev rule to set readahead on Ceph RBD's

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> -----Original Message-----
> From: Ilya Dryomov [mailto:idryomov@xxxxxxxxx]
> Sent: 22 August 2016 15:16
> To: Nick Fisk <nick@xxxxxxxxxx>
> Cc: ceph-users <ceph-users@xxxxxxxxxxxxxx>
> Subject: Re:  udev rule to set readahead on Ceph RBD's
> 
> On Mon, Aug 22, 2016 at 3:17 PM, Nick Fisk <nick@xxxxxxxxxx> wrote:
> > Hope it's useful to someone
> >
> > https://gist.github.com/fiskn/6c135ab218d35e8b53ec0148fca47bf6
> 
> Make sure your kernel is 4.4 or later - there was a 2M readahead limit imposed by the memory management subsystem until 4.4.

Yep, I think it was you that helped me get that fixed back in the 3.19 period.

> 
> Thanks,
> 
>                 Ilya

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