Date: Tue, 07 Feb 2012 17:34:50 +0600 From: "Eugene M. Zheganin" <emz@norma.perm.ru> To: freebsd-stable@freebsd.org Subject: Re: zfs arc and amount of wired memory Message-ID: <4F310C5A.6070400@norma.perm.ru> In-Reply-To: <4F310115.3070507@FreeBSD.org> References: <4F30E284.8080905@norma.perm.ru> <4F310115.3070507@FreeBSD.org>
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Hi. On 07.02.2012 16:46, Andriy Gapon wrote: > on 07/02/2012 10:36 Eugene M. Zheganin said the following: >> If I use the script from http://wiki.freebsd.org/ZFSTuningGuide , it says: >> >> ===Cut=== >> ARC Size: 12.50% 363.14 MiB >> Target Size: (Adaptive) 12.50% 363.18 MiB >> Min Size (Hard Limit): 12.50% 363.18 MiB >> Max Size (High Water): 8:1 2.84 GiB >> ===Cut=== >> >> At the same time I have 3500 megs in wired state: >> >> >> Please try sysutils/zfs-stats; zfs-stats -a output should provide a good >> overview of the state and configuration of the system. >> Thanks. But it seems to be the same script. Anyway, it reports the same amount of memory: [emz@taiga:~]# zfs-stats -A ------------------------------------------------------------------------ ZFS Subsystem Report Tue Feb 7 17:32:34 2012 ------------------------------------------------------------------------ ARC Summary: (THROTTLED) Memory Throttle Count: 2.62k ARC Misc: Deleted: 10.17m Recycle Misses: 1.47m Mutex Misses: 7.69k Evict Skips: 7.69k ARC Size: 12.50% 363.24 MiB Target Size: (Adaptive) 12.50% 363.18 MiB Min Size (Hard Limit): 12.50% 363.18 MiB Max Size (High Water): 8:1 2.84 GiB ARC Size Breakdown: Recently Used Cache Size: 57.54% 209.01 MiB Frequently Used Cache Size: 42.46% 154.22 MiB ARC Hash Breakdown: Elements Max: 191.41k Elements Current: 33.76% 64.63k Collisions: 27.09m Chain Max: 17 Chains: 13.56k ------------------------------------------------------------------------ I still don't get why I have 3/5 Gigs in wired state. Thanks. Eugene.
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