Richard Elling <richard.ell...@gmail.com> wrote:

> I think a picture is emerging that if you have enough RAM, the
> ARC is working very well. Which means that the ARC management
> is suspect.
>
> I propose the hypothesis that ARC misses are not prefetched.  The
> first time through, prefetching works.  For the second pass, ARC
> misses are not prefetched, so sequential reads go slower. 

You may be right as it may be that the cache is not filled by new important
data because there is already 100% of unimportant data inside.....


Jörg

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