Re: [PATCH] fs: add fincore(2) (mincore(2) for file descriptors)

From: Steve VanDeBogart
Date: Thu Jan 28 2010 - 03:32:41 EST

On Thu, 28 Jan 2010, Andrew Morton wrote:

On Wed, 27 Jan 2010 23:42:35 -0800 (PST) Steve VanDeBogart <vandebo-lkml@xxxxxxxxxxx> wrote:

Is it likely that these changes to SQLite and Gimp would be merged into
the upstream applications?

Changes to the GIMP fit nicely into the code structure, so it's feasible
to push this kind of optimization upstream. The changes in SQLite are
a bit more focused on the benchmark, but a more general approach is not
conceptually difficult. SQLite may not want the added complexity, but
other database may be interested in the performance improvement.

Of course, these kernel changes are needed before any application can
optimize its IO as we did with libprefetch.

That didn't really answer my question.

If there's someone signed up and motivated to do the hard work of
getting these changes integrated into the upstream applications then
that makes us more interested. If, however it was some weekend
proof-of-concept hack which shortly dies an instadeath then... meh,
not so much.

Sorry I misunderstood. The maintainer of GraphicsMagick has already
contacted us about making changes similar to our GIMP changes. So yes,
there is interest in really using these changes.

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