Ticket #940 (closed task: wontfix)
The tmp-on-tmpfs feature should be disabled by default
|Reported by:||rjones||Owned by:|
|Cc:||gholms, jstanley, jdulaney, fche, mattdm||Blocked By:|
The tmp-on-tmpfs feature (https://fedoraproject.org/wiki/Features/tmp-on-tmpfs) was approved for Fedora 18. However it is problematic and should not be enabled by default for the reasons outlined below.
- There are no performance benefits since even if backed by a disk, the kernel will cache /tmp in memory as required. The originator of the feature did no testing to demonstrate any performance benefits. Benefits are claimed for SSDs, power etc but there are no facts to back this up.
- On small memory systems (ie. VMs) the default is half of available memory which can be too small for ordinary workloads.