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On Sat, Jun 21, 2014 at 10:27 AM, Peter Humphrey <peter@××××××××××××.uk> wrote: |
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> |
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> I found that fstrim can't work on f2fs file systems. I don't know whether |
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> discard works yet. |
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Fstrim is to be preferred over discard in general. However, I suspect |
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neither is needed for something like f2fs. Being log-based it doesn't |
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really overwrite data in place. I suspect that it waits until an |
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entire region of the disk is unused and then it TRIMs the whole |
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region. |
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However, I haven't actually used it and only know the little I've read |
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about it. That is the principle of a log-based filesystem. |
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I'm running btrfs on my SSD root, which is supposed to be decent for |
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flash, but the SMART attributes of my drive aren't well-documented so |
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I couldn't tell you what the erase count is up to. |
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Rich |
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