Date: Thu, 24 Jun 2010 22:04:43 +0200 From: Martin Matuska <mm@FreeBSD.org> To: freebsd-current@FreeBSD.org Subject: [CFT] ZFS v16 with stat() speedup Message-ID: <4C23BA5B.2020709@FreeBSD.org>
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As I have imported some more improvements to the ZFS v15 patch that also target speed, I am now calling for testing of v16 with mainly the following important (post-v16) enhancement (and some related bugfixes): OpenSolaris Bug ID: 6775100 stat() performance on files on zfs should be improved This significantly improves stat() performance of ZFS and has a very positive effect on e.g webservers using PHP (I benchmarked a ~20% speed increase of PHP webserving) The patch is available here: http://people.freebsd.org/~mm/patches/zfs/v16/head-v16-extended.patch List of all changes (compared to current head and v15-patch): http://people.freebsd.org/~mm/patches/zfs/v16/head-v16.txt And again some ISOs (patched 8.1rc1) for testing: http://mfsbsd.vx.sk/iso/8.1rc1-zfsv16.iso (without symbols, 98.7MB) http://mfsbsd.vx.sk/iso/8.1rc1-zfsv16-debug.iso (with kernel symbols, 187.6MB) Login/password: root/mfsroot You can test these ISO's in Virtualbox, other emulation software or real-world systems. They contain a full installable distribution, here is a zfsinstall command example on an ad4 disk, with ZFS version 16, 4GB extra swap partition, lzjb compression and fletcher4 checksum: 1. Login as root (root:mfsroot) 2. mount_cd9660 /dev/acd0 /cdrom 3. zfsinstall -V 16 -t /cdrom/8.1-RC1-amd64.tar.xz -s 4G -c -4 -d ad4 When mfsbsd (not the installed system) is booted, there is a python and py-zfs package in /packages. You can copy and install these to your installed system for full pyzfs functionality (zfs userspace, zfs groupspace, zfs allow, zfs unallow). Thanks for testing, mm
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