[rfc] Jaunty experience and SSDs...

Daniel J Blueman daniel.blueman at gmail.com
Fri Jan 23 00:04:33 UTC 2009

In order to maximise user experience thus performance, we need to
ensure the disk partitions created on SSDs/USB flash drives/RAID
arrays are 4KB (perhaps up to 128KB) aligned. There are considerable
benefits with the flash/RAID controller opening half as many
pages/stripes on small reads. This pays better with slower SSDs in eg

Patches have entered the upstream kernel to detect when drives are
solid-state [1], though the dust hasn't settled on the interface.

How acceptable would getting the userspace partitioner changes into
Jaunty if proven to be stable and robust?

--- [1]

Daniel J Blueman

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