Re: [PATCH 0/4] dcache: make Oracle more scalable on large systems

From: Andi Kleen
Date: Fri Feb 22 2013 - 19:13:38 EST

> That seems to me like an application problem - poking at what the
> kernel is doing via diagnostic interfaces so often that it gets in
> the way of the kernel actually doing stuff is not a problem the
> kernel can solve.

I agree with you that the application shouldn't be doing that, but
if there is a cheap way to lower the d_path overhead that is also
attractive. There will be always applications doing broken things.
Any scaling problem less in the kernel is good.

But the real fix in this case is to fix the application.

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