Date: Wed, 30 Jan 2013 18:34:41 +0200 From: Nikolay Denev <ndenev@gmail.com> To: Kevin Day <toasty@dragondata.com> Cc: FreeBSD Filesystems <freebsd-fs@freebsd.org> Subject: Re: Improving ZFS performance for large directories Message-ID: <23E6691A-F30C-4731-9F78-FD8ADDDA09AE@gmail.com> In-Reply-To: <47975CEB-EA50-4F6C-8C47-6F32312F34C4@dragondata.com> References: <19DB8F4A-6788-44F6-9A2C-E01DEA01BED9@dragondata.com> <5267B97C-ED47-4AAB-8415-12D6987E9371@gmail.com> <47975CEB-EA50-4F6C-8C47-6F32312F34C4@dragondata.com>
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On Jan 30, 2013, at 5:19 PM, Kevin Day <toasty@dragondata.com> wrote: >=20 > On Jan 30, 2013, at 4:36 AM, Nikolay Denev <ndenev@gmail.com> wrote: >>=20 >>=20 >> What are your : vfs.zfs.arc_meta_limit and vfs.zfs.arc_meta_used = sysctls? >> Maybe increasing the limit can help? >=20 >=20 > vfs.zfs.arc_meta_limit: 8199079936 > vfs.zfs.arc_meta_used: 13965744408 >=20 > Full output of zfs-stats: [=85snipped=85] Looks like you can try to increase arc_meta_limit to be let's say : half = of arc_max. (16398159872 in your case).
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