Re: Btrfs/SSD

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On 5/14/17, Tomasz Kusmierz <tom.kusmierz@xxxxxxxxx> wrote:
> In terms of over provisioning of SSD it’s a give and take relationship … on
> good drive there is enough over provisioning to allow a normal operation on
> systems without TRIM … now if you would use a 1TB drive daily without TRIM
> and have only 30GB stored on it you will have fantastic performance but if
> you will want to store 500GB at roughly 200GB you will hit a brick wall and
> you writes will slow dow to megabytes / s … this is symptom of drive running
> out of over provisioning space …

What exactly happens on a non-trimmed drive?
Does it begin to forge certain erase-blocks? If so
which are those? What happens when you never
trim and continue dumping data on it?
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