#65: Temporary filesystems should be in RAM
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Reporter: [EMAIL PROTECTED] | Owner: marcelo
Type: enhancement | Status: new
Priority: high | Milestone: BTest-1
Component: kernel | Resolution:
Keywords: |
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Comment (by marcelo):
Using tmpfs for /tmp (and other temporary directories) is not a good idea
given the small amount of RAM available.
To avoid extra writes the system should keep data written to temporary
locations in RAM as long as possible, but as soon as memory pressure is
detected those should be written back to their (NAND flash) backing
storage.
Currently Linux allows setting of a system-wide dirty data expiration
period, at mm/page-writeback.c:
/*
* The longest number of jiffies for which data is allowed to remain dirty
*/
int dirty_expire_interval = 30 * HZ;
Being able to configure such setting per-filesystem would be ideal.
--
Ticket URL: <http://dev.laptop.org/ticket/65#comment:8>
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