Messages in this thread | | | Date | Sun, 14 Mar 2010 21:00:50 -0700 | From | "H. Peter Anvin" <> | Subject | Re: ATA 4 KiB sector issues. |
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On 03/14/2010 07:26 PM, Denys Vlasenko wrote: >> >> Yes, but it does squat for a flash disk that wants, say, 256K alignment. > > 4K makes sense. 256K not so much. > > 256K alignment is hard to swallow for a lot of reasons anyway. > Unless the filesystem packs small files into blocks a-la reiserfs, > 256K block filesystems will be very inefficient for a typical > storage scenarios. >
Noone has talked about using 256K filesystem blocks. The fact of the matter, though, is that both flash and RAID have much larger alignment requirements than a mere 4K for optimal performance.
You might not like it, but that's the way it is.
-hpa
-- H. Peter Anvin, Intel Open Source Technology Center I work for Intel. I don't speak on their behalf.
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