On 22 October, 2012 - Robert Milkowski sent me these 3,6K bytes:

> Hi,
> If after it decreases in size it stays there it might be similar to:
>       7111576 arc shrinks in the absence of memory pressure
> Also, see document:
>       ZFS ARC can shrink down without memory pressure result in slow
> performance [ID 1404581.1]
> Specifically, check if arc_no_grow is set to 1 after the cache size is
> decreased, and if it stays that way.
> The fix is in one of the SRUs and I think it should be in 11.1
> I don't know if it was fixed in Illumos or even if Illumos was affected by
> this at all.

The code that affects bug 7111576 was introduced between s10 and s11.

Tomas Forsman, st...@acc.umu.se, http://www.acc.umu.se/~stric/
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