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I hate when my disk spins up every 10 seconds just to write 28k and a 4k block (at least that's what dstat tells me).
I use laptop mode tools (http://paste.pocoo.org/show/271842, hard disk settings begin on line 214), and I think I have configured it correctly.
`touch a` makes my hard disk to wake up in ~ 7 seconds.
I want it to wake up after, say, 5 minutes, if the amount of data is, say, < 3mb.
Any tips?
Last edited by dauerbaustelle (2010-10-06 18:10:37)
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Maybe try something with the way the disks are mounted, when / how the data is periodically flushed to disk.
This is risky, as e.g. 3 MB is a lot of data so you can loose all your changes if something hangs.
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assuming that you are not running whatever indexing/crap facilitating daemons: use syscals to fix vm.dirty_writeback_centisecs, dirty_background_ratio
vm.dirty_ratio, vm.vfs_cache_pressure,
you may consider I/O scheduler optimized for your fs,
there are syscals specific for fs
ext3/4 do a lot of stuff by default if not controlled
properly set up should help with desktop interactivity and file transfer
hope this will help
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