> From: zfs-discuss-boun...@opensolaris.org [mailto:zfs-discuss-
> boun...@opensolaris.org] On Behalf Of Lachlan Mulcahy
> *       Recommendation from Sun (Oracle) to work around a bug:
> *       6958068 - Nehalem deeper C-states cause erratic scheduling
> set idle_cpu_prefer_mwait = 0
> set idle_cpu_no_deep_c = 1
> Was apparently the cause of a similar symptom for them and we are using
> Nehalem.

FWIW, we also disabled the c-states.  It seemed to make an improvement, but
not what I would call a fix for us.

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