F20 System Wide Change: SSD cache

[Peter Robinson]

On Mon, Jul 15, 2013 at 5:21 PM, Martin Langhoff
<martin.langhoff at gmail.com> wrote:
> On Mon, Jul 15, 2013 at 10:55 AM, Peter Robinson <pbrobinson at gmail.com> wrote:
>> On Mon, Jul 15, 2013 at 3:42 PM, Martin Langhoff
>> <martin.langhoff at gmail.com> wrote:
>>> On Mon, Jul 15, 2013 at 7:47 AM, Mihamina Rakotomandimby
>>> <mihamina at rktmb.org> wrote:
>>>> One thing I would recommend would be to correctly detect SSD:
>>>> ATM, I installed my Fedora over an SSD and it did not ajust the mount
>>>> settings nor suggest an appropriate setting for the SSD.
>>>> If we can at least detect SSD and suggest (just suggest) a setting it would
>>>> be great.
>>>
>>> you can set IO scheduler to noop for disks that are reported as not
>>> "rotational".
>>>
>>> Example udev script at
>>> https://github.com/satya164/fedorautils/blob/master/plugins/disk_io_scheduler.misc.sh
>>>
>>> It might be a good idea to add this initscripts.
>>
>> A tuned profile I believe is the recommended spot for this sort of
>> thing these days.
>
> Would you run tuned on a server?


Yes, it sets and deals with a lot more than just schedulers.

[1] https://docs.fedoraproject.org/en-US/Fedora/15/html-single/Power_Management_Guide/index.html#Tuned