Re: [PATCH 2/2] block: create ioctl to discard-or-zeroout a range of blocks

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On 3/15/16 3:14 PM, Dave Chinner wrote:
> What we are missing is actual numbers that show that exposing stale
> data is a /significant/ win for these applications that are
> demanding it. And then we need evidence proving that the problem is
> actually systemic and not just a hack around a bad implementation of
> a feature...

Thanks Dave; I totally agree on this point.  We've spent more than enough
time talking about how and if to implement stale data exposure, but nowhere
in this thread has there been any actual performance data indicating why
we should do it at all.

-Eric
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