Date: Thu, 29 Aug 2013 14:35:25 -0400 From: Robert Burmeister <Robert.Burmeister@UToledo.edu> To: <freebsd-fs@freebsd.org> Subject: dirhash default maxmem and reclaimage values Message-ID: <521F946D.9060805@UToledo.edu> References: 20111014135220.GA73637@icarus.home.lan
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Would people with experience tuning dirhash check the list[1] http://freebsd.1045724.n5.nabble.com/Suggest-changing-dirhash-defaults- for-FreeBSD-9-2-td5839351.html and contribute any benchmarks that they have that are more recent than 2008? In question are: should vfs.ufs.dirhash_reclaimage be increased, if so what to? should vfs.ufs.dirhash_maxmem scale with kernel memory rather than RAM? (Autotuning maxmem on low RAM machines makes maxmem too small, and on large RAM machines scavenging 10% of maxmem on vm_lowmem events becomes too aggressive.) References 1. http://freebsd.1045724.n5.nabble.com/Suggest-changing-dirhash-defaults-for-FreeBSD-9-2-td5839351.html
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