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Date: Sun, 9 Sep 2012 21:04:02 +0100
From: Justin Cormack <justin@...cialbusservice.com>
To: musl@...ts.openwall.com
Subject: Re: capset() capget() syscalls

On Sat, Sep 8, 2012 at 11:14 PM, Rich Felker <dalias@...ifal.cx> wrote:
> Is there any legitimate user of this horrible API? Last I checked
> these functions were only useful for block-aligned IO on block devices
> and the impression I got was that they were designed solely for
> Oracle's use. (puke) I suppose they could be useful for FUSE drivers
> too, however. We can add them if they have legitimate software that
> needs them.

It is still the only way to get decent io performance out of an SSD as
far as I can see, being about a factor of 8 faster than anything else
for random reads eg posix aio. Assuming of course our reads are block
aligned.

Justin

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