Am 05.09.2012 14:55, schrieb Adam Carter: >>> I might also add, I see no speed improvements in putting portages work >>> directory on tmpfs. I have tested this a few times and the difference >>> in compile times is just not there. >> >> Probably because with 16GB everything stays cached anyway. > > Would it still be useful to use tmpfs if you wanted to keep drive > writes down on an SSD? I imagine even tho its cached it would get > written to disk after a timer expires, so while it doesn't affect > performance it does reduce the drive life. >
Yes. For ext{3,4}, this timer is controlled by the "commit=x" mount flag
(default: 5 seconds).
IIRC, app-laptop/laptop-mode-tools sets this to 30 so I guess it is safe
to use large values (besides the obvious risk of loosing data on system
crashes).
Regards,
Florian Philipp
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