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On Tue, May 19, 2015 at 11:00 AM, Peter Humphrey <peter@××××××××××××.uk> wrote: |
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> On Tuesday 19 May 2015 10:53:26 Rich Freeman wrote: |
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>> On Tue, May 19, 2015 at 10:44 AM, Peter Humphrey <peter@××××××××××××.uk> |
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> wrote: |
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>> > Incidentally, what's the received wisdom on frequency of file-system |
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>> > trimming on SSDs these days? I've seen values quoted between twice a day |
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>> > and once a week. And how does trimming affect btrfs? |
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>> |
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>> I've been trimming mine daily, and I've yet to be able to distinguish |
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>> it from a no-op. As far as I can tell fstrim -v always outputs 0 |
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>> bytes trimmed. |
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> |
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> Ah, well that's quite different from my Atom box with its 64GB SSD; before I |
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> remove the -v a few weeks ago it was reporting many megabytes trimmed most |
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> times it ran. That's on ext4 and running Gentoo with http-replicator service. |
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> |
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So, I was inspired to look into this yet again. Looks like it is the |
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subject of this: |
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https://www.mail-archive.com/linux-btrfs@×××××××××××.org/msg40618.html |
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|
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It doesn't look like this is in 3.18 yet. So, I'm basically running |
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without trimming. |
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|
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-- |
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Rich |
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