Hello folks
A few weeks ago, there was a discussion started by me regarding
abysmal read/write performance using ZFS mirror on 8.0-RELEASE. I was
using an Atom 330 system with 2GB ram and it was pointed out to me
that my problem was most likely having both disks attached to a PCI
SIL3124
Dan Naumov wrote:
[j...@atombsd ~]$ dd if=/dev/zero of=/home/jago/test2 bs=1M count=4096
4096+0 records in
4096+0 records out
4294967296 bytes transferred in 143.878615 secs (29851325 bytes/sec)
This works out to 1GB in 36,2 seconds / 28,2mb/s in the first test and
4GB in 143.8 seconds /
On Mon, 25 Jan 2010, Dan Naumov wrote:
I've checked with the manufacturer and it seems that the Sil3124 in
this NAS is indeed a PCI card. More info on the card in question is
available at http://green-pcs.co.uk/2009/01/28/tranquil-bbs2-those-pci-cards/
I have the card described later on the
On Mon, Jan 25, 2010 at 7:33 AM, Bob Friesenhahn
bfrie...@simple.dallas.tx.us wrote:
On Mon, 25 Jan 2010, Dan Naumov wrote:
I've checked with the manufacturer and it seems that the Sil3124 in
this NAS is indeed a PCI card. More info on the card in question is
available at
On Mon, Jan 25, 2010 at 9:34 AM, Dan Naumov dan.nau...@gmail.com wrote:
On Mon, Jan 25, 2010 at 7:33 AM, Bob Friesenhahn
bfrie...@simple.dallas.tx.us wrote:
On Mon, 25 Jan 2010, Dan Naumov wrote:
I've checked with the manufacturer and it seems that the Sil3124 in
this NAS is indeed a PCI
It depends on the bandwidth of the bus that it is on and the controller
itself.
I like to use pci-x with aoc-sat2-mv8 cards or pci-e cardsthat way you
get a lot more bandwidth..
On Mon, Jan 25, 2010 at 3:32 AM, Dan Naumov dan.nau...@gmail.com wrote:
On Mon, Jan 25, 2010 at 9:34 AM, Dan
I like to use pci-x with aoc-sat2-mv8 cards or pci-e cardsthat way you
get a lot more bandwidth..
I would goalong with that - I have precisely the same controller, with
a pair of eSATA drives, running ZFS mirrored. But I get a nice 100
meg/second out of them if I try. My controller is,
aoc-sat2-mv8 was somewhat slower compared to ICH9 or LSI1068
controllers when I tried it with 6 and 8 disks.
I think the problem is that MV8 only does 32K per transfer and that
does seem to matter when you have 8 drives hooked up to it. I don't
have hard numbers, but peak throughput of MV8 with
Artem Belevich wrote:
aoc-sat2-mv8 was somewhat slower compared to ICH9 or LSI1068
controllers when I tried it with 6 and 8 disks.
I think the problem is that MV8 only does 32K per transfer and that
does seem to matter when you have 8 drives hooked up to it. I don't
have hard numbers, but
On Mon, Jan 25, 2010 at 7:40 PM, Alexander Motin m...@freebsd.org wrote:
Artem Belevich wrote:
aoc-sat2-mv8 was somewhat slower compared to ICH9 or LSI1068
controllers when I tried it with 6 and 8 disks.
I think the problem is that MV8 only does 32K per transfer and that
does seem to matter
Dan Naumov wrote:
Alexander, since you seem to be experienced in the area, what do you
think of these 2 for use in a FreeBSD8 ZFS NAS:
http://www.supermicro.com/products/motherboard/ATOM/ICH9/X7SPA.cfm?typ=H
http://www.supermicro.com/products/motherboard/ATOM/ICH9/X7SPA.cfm?typ=HIPMI=Y
On Mon, Jan 25, 2010 at 8:32 PM, Alexander Motin m...@freebsd.org wrote:
Dan Naumov wrote:
Alexander, since you seem to be experienced in the area, what do you
think of these 2 for use in a FreeBSD8 ZFS NAS:
http://www.supermicro.com/products/motherboard/ATOM/ICH9/X7SPA.cfm?typ=H
Dan Naumov wrote:
CPU-performance-wise, I am not really worried. The current system is
an Atom 330 and even that is a bit overkill for what I do with it and
from what I am seeing, the new Atom D510 used on those boards is a
tiny bit faster. What I want and care about for this system are
Chris Whitehouse wrote:
Dan Naumov wrote:
CPU-performance-wise, I am not really worried. The current system is
an Atom 330 and even that is a bit overkill for what I do with it and
from what I am seeing, the new Atom D510 used on those boards is a
tiny bit faster. What I want and care about
Alexander Motin wrote:
Chris Whitehouse wrote:
Dan Naumov wrote:
CPU-performance-wise, I am not really worried. The current system is
an Atom 330 and even that is a bit overkill for what I do with it and
from what I am seeing, the new Atom D510 used on those boards is a
tiny bit faster. What I
On Tue, 26 Jan 2010, Dan Naumov wrote:
CPU-performance-wise, I am not really worried. The current system is
an Atom 330 and even that is a bit overkill for what I do with it and
from what I am seeing, the new Atom D510 used on those boards is a
tiny bit faster. What I want and care about for
Note: Since my issue is slow performance right off the bat and not
performance degradation over time, I decided to start a separate
discussion. After installing a fresh pure ZFS 8.0 system and building
all my ports, I decided to do some benchmarking. At this point, about
a dozen of ports has been
On Sun, Jan 24, 2010 at 7:05 PM, Jason Edwards sub.m...@gmail.com wrote:
Hi Dan,
I read on FreeBSD mailinglist you had some performance issues with ZFS.
Perhaps i can help you with that.
You seem to be running a single mirror, which means you won't have any speed
benefit regarding writes,
On Sun, Jan 24, 2010 at 7:42 PM, Dan Naumov dan.nau...@gmail.com wrote:
On Sun, Jan 24, 2010 at 7:05 PM, Jason Edwards sub.m...@gmail.com wrote:
Hi Dan,
I read on FreeBSD mailinglist you had some performance issues with ZFS.
Perhaps i can help you with that.
You seem to be running a single
On Sun, Jan 24, 2010 at 8:12 PM, Bob Friesenhahn
bfrie...@simple.dallas.tx.us wrote:
On Sun, 24 Jan 2010, Dan Naumov wrote:
This works out to 1GB in 36,2 seconds / 28,2mb/s in the first test and
4GB in 143.8 seconds / 28,4mb/s and somewhat consistent with the
bonnie results. It also sadly
On Sun, Jan 24, 2010 at 8:34 PM, Jason Edwards sub.m...@gmail.com wrote:
ZFS writes to a mirror pair
requires two independent writes. If these writes go down independent I/O
paths, then there is hardly any overhead from the 2nd write. If the
writes
go through a bandwidth-limited shared path
Dan Naumov wrote:
This works out to 1GB in 36,2 seconds / 28,2mb/s in the first test and
4GB in 143.8 seconds / 28,4mb/s and somewhat consistent with the
bonnie results. It also sadly seems to confirm the very slow speed :(
The disks are attached to a 4-port Sil3124 controller and again, my
On Sun, Jan 24, 2010 at 11:53 PM, Alexander Motin m...@freebsd.org wrote:
Dan Naumov wrote:
This works out to 1GB in 36,2 seconds / 28,2mb/s in the first test and
4GB in 143.8 seconds / 28,4mb/s and somewhat consistent with the
bonnie results. It also sadly seems to confirm the very slow speed
On Mon, Jan 25, 2010 at 2:14 AM, Dan Naumov dan.nau...@gmail.com wrote:
On Sun, Jan 24, 2010 at 11:53 PM, Alexander Motin m...@freebsd.org wrote:
Dan Naumov wrote:
This works out to 1GB in 36,2 seconds / 28,2mb/s in the first test and
4GB in 143.8 seconds / 28,4mb/s and somewhat consistent
Dan Naumov wrote:
On Mon, Jan 25, 2010 at 2:14 AM, Dan Naumov dan.nau...@gmail.com wrote:
On Sun, Jan 24, 2010 at 11:53 PM, Alexander Motin m...@freebsd.org wrote:
Dan Naumov wrote:
This works out to 1GB in 36,2 seconds / 28,2mb/s in the first test and
4GB in 143.8 seconds / 28,4mb/s and
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