Date: Tue, 8 Oct 2013 00:12:01 +0300 From: Vitalij Satanivskij <satan@ukr.net> To: Vitalij Satanivskij <satan@ukr.net> Cc: freebsd-current@freebsd.org Subject: Re: ZFS L2ARC - incorrect size and abnormal system load on r255173 Message-ID: <20131007211201.GA89306@hell.ukr.net> In-Reply-To: <20131007185032.GA82932@hell.ukr.net> References: <1381166916.122992963.5h9ygiri@frv45.ukr.net> <1381170764.32684.31088349.343931EE@webmail.messagingengine.com> <20131007185032.GA82932@hell.ukr.net>
next in thread | previous in thread | raw e-mail | index | archive | help
One more question - we have two counter - kstat.zfs.misc.arcstats.l2_size: 1256609410560 kstat.zfs.misc.arcstats.l2_asize: 1149007667712 can anybody explain how to understand them i.e. l2_asize - real used space on l2arc an l2_size - uncompressed size, or maybe something else ? Vitalij Satanivskij wrote: VS> VS> Data on pool have compressratio around 1.4 VS> VS> On diferent servers with same data type and load L2 ARC Size: (Adaptive) can be diferent VS> VS> for example 1.04 TiB vs 1.45 TiB VS> VS> But it's all have same porblem - grow in time. VS> VS> VS> More stange for us - VS> VS> ARC: 80G Total, 4412M MFU, 5040M MRU, 76M Anon, 78G Header, 2195M Other VS> VS> 78G header size and ubnormal - VS> VS> kstat.zfs.misc.arcstats.l2_cksum_bad: 210920592 VS> kstat.zfs.misc.arcstats.l2_io_error: 7362414 VS> VS> sysctl's growing avery second. VS> VS> All part's of server (as hardware part's) in in normal state. VS> VS> After reboot no problem's for some period untile cache size grow to some limit. VS> VS> VS> VS> Mark Felder wrote: VS> MF> On Mon, Oct 7, 2013, at 13:09, Dmitriy Makarov wrote: VS> MF> > VS> MF> > How can L2 ARC Size: (Adaptive) be 1.44 TiB (up) with total physical size VS> MF> > of L2ARC devices 490GB? VS> MF> > VS> MF> VS> MF> http://svnweb.freebsd.org/base?view=revision&revision=251478 VS> MF> VS> MF> L2ARC compression perhaps? VS> MF> _______________________________________________ VS> MF> freebsd-current@freebsd.org mailing list VS> MF> http://lists.freebsd.org/mailman/listinfo/freebsd-current VS> MF> To unsubscribe, send any mail to "freebsd-current-unsubscribe@freebsd.org" VS> _______________________________________________ VS> freebsd-current@freebsd.org mailing list VS> http://lists.freebsd.org/mailman/listinfo/freebsd-current VS> To unsubscribe, send any mail to "freebsd-current-unsubscribe@freebsd.org"
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20131007211201.GA89306>