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On Sun, Aug 26, 2012 at 12:22:47AM +0200, Volker Armin Hemmann wrote: |
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> > > The size of an erasable block of SSDs is even larger, usually 512K, it |
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> > > would be best to align to that, too. A partition offset of 512K or 1M |
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> > > would avoid this. |
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> > |
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> > Unless the filesystem knows this and starts bigger files at those 512 k |
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> > boundaries (so really only one erase cycle is needed for files <=512 k), |
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> > isn't this fairly superfluous? |
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> |
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> no, if you misalign, a lot of 4k blocks might span into two erase blocks. |
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> Which is bad. If you align correctly, you will never cross them unnecessary, |
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> sparing your SSD some unnecessary writes and improving overall performance. |
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I don’t quite follow. If you align to 4k, then you are also aligned to 512k, |
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because 512 % 4 = 0. |
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-- |
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Gruß | Greetings | Qapla' |
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Please do not share anything from, with or about me with any Facebook service. |
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The duration of a minute is relative. |
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It depends on the side of the toilet door you are standing on. |
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