[arch-general] What dirs are good to put in a tmpfs?

[Daniel Micay]

On Thu, Jul 25, 2013 at 4:35 AM, Gaetan Bisson <bisson at archlinux.org> wrote:
> [2013-07-24 21:27:11 -0600] Chris Moline:
>> I installed anything-sync-daemon but I have no idea what to sync.
>
> General question: isn't the effect of that software exactly the same
> thing as increasing the vm.dirty_expire_centiseconds kernel parameter?
>
> Except maybe in the case of a given application calling sync() all the
> time, but then it usually has a good reason to do so (such as the
> written data being too important to be in cache during a power cut).
>
> --
> Gaetan

Yeah, it shouldn't increase performance except where it's causing possible data
loss by ignoring `fsync`/`fdatasync`. There's no need to "guess and
benchmark" because the kernel is already managing this for you.