Date: Tue, 26 Jun 2012 10:25:40 -0500 From: Mark Felder <feld@feld.me> To: freebsd-fs@freebsd.org Subject: Re: [PATCH] Simple ARC stats in top Message-ID: <op.wgins2ez34t2sn@tech304> In-Reply-To: <4FE9CC00.9090501@FreeBSD.org> References: <201206251443.41768.jhb@freebsd.org> <op.wgik62ia34t2sn@tech304> <4FE9CC00.9090501@FreeBSD.org>
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On Tue, 26 Jun 2012 09:49:36 -0500, Andriy Gapon <avg@freebsd.org> wrote: > > Please also reproduce the zfs-stats lines preceding the quoted output. zfs2# zfs-stats -A =2D----------------------------------------------------------------------= - ZFS Subsystem Report Tue Jun 26 10:24:40 2012 =2D----------------------------------------------------------------------= - ARC Summary: (HEALTHY) Memory Throttle Count: 0 ARC Misc: Deleted: 87.09m Recycle Misses: 50.58m Mutex Misses: 299.09k Evict Skips: 5.28m ARC Size: 941.88% 5.89 GiB Target Size: (Adaptive) 100.00% 640.00 MiB Min Size (Hard Limit): 12.50% 80.00 MiB Max Size (High Water): 8:1 640.00 MiB ARC Size Breakdown: Recently Used Cache Size: 0.66% 40.00 MiB Frequently Used Cache Size: 99.34% 5.85 GiB ARC Hash Breakdown: Elements Max: 29.25m Elements Current: 100.00% 29.25m Collisions: 89.81m Chain Max: 131 Chains: 524.29k =2D----------------------------------------------------------------------= - > Additionally, please run this script =20 > http://people.freebsd.org/~avg/arc-sizes.sh > zfs2# sh arc-sizes.sh ARC top-level breakdown: size: 6319074560 hdr_size: 10166488 data_size: 1513472 other_size: 245576 ARC size vs hdr_size + data_size + other_size: 6319074560 vs 11925536 ARC Data breakdown: mfu_size: 212992 mru_size: 1251328 anon_size: 49152 Data size vs mfu_size + mru_size + anon_size: 1513472 vs 1513472 mfu breakdown: data_lsize: 0 metadata_lsize: 0 other (overhead? ghost entries?): 212992 mru breakdown: data_lsize: 0 metadata_lsize: 49152 other (overhead? ghost entries?): 1202176 anon breakdown: data_lsize: 0 metadata_lsize: 0 other (overhead? ghost entries?): 49152
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