Date: Fri, 29 May 2009 12:17:26 +0300 From: Dan Naumov <dan.naumov@gmail.com> To: Pete French <petefrench@ticketswitch.com> Cc: freebsd-stable@freebsd.org Subject: Re: ZFS on top of GELI / Intel Atom 330 system Message-ID: <cf9b1ee00905290217m1698a7b6rb2dbc2099c70ac1@mail.gmail.com> In-Reply-To: <E1M9y6o-000PdN-FK@dilbert.ticketswitch.com> References: <cf9b1ee00905290119w5eea0bfmd018d1c1282ac310@mail.gmail.com> <E1M9y6o-000PdN-FK@dilbert.ticketswitch.com>
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Ouch, that does indeed sounds quite slow, especially considering that a dual core Athlon 6400 is pretty fast CPU. Have you done any comparison benchmarks between UFS2 with Softupdates and ZFS on the same system? What are the read/write numbers like? Have you done any investigating regarding possible causes of ZFS working so slow on your system? Just wondering if its an ATA chipset problem, a drive problem, a ZFS problem or what... - Dan Naumov On Fri, May 29, 2009 at 12:10 PM, Pete French <petefrench@ticketswitch.com> wrote: >> Is there anyone here using ZFS on top of a GELI-encrypted provider on >> hardware which could be considered "slow" by today's standards? What > > I run a mirrored zpool on top of a pair of 1TB SATA drives - they are > only 7200 rpm so pretty dog slow as far as I'm concerned. The > CPOU is a dual core Athlon 6400, and I am running amd64. The performance > is not brilliant - about 25 meg/second writing a file, and about > 53 meg/second reading it. > > It's a bit dissapointing really - thats a lot slower that I expected > when I built it, especially the write speed. > > -pete. >
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