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Re: [zfs-discuss] Some performance questions with ZFS/NFS/DNLC at snv_48

Subject: Re: [zfs-discuss] Some performance questions with ZFS/NFS/DNLC at snv_48
From: eric kustarz
Date: Thu, 09 Nov 2006 13:22:55 -0800
Brian Wong wrote:
eric kustarz wrote:


If the ARC detects low memory (via arc_reclaim_needed()), then we call arc_kmem_reap_now() and subsequently dnlc_reduce_cache() - which reduces the # of dnlc entries by 3% (ARC_REDUCE_DNLC_PERCENT).

So yeah, dnlc_nentries would be really interesting to see (especially if its << ncsize).

The version of statit that we're using is still attached to ancient 32-bit counters that /are/ overflowing on our runs. I'm fixing this at the moment and I'll send around a new binary this afternoon.

blw

Me and Spencer just fixed some statit bugs (such as getting it to not core on a thumper)... he has the changes, so i'd sync up with him (i'm not sure if they are they same bugs though).

eric

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