On Fri, 29 May 2009 13:34:57 +0200, Dan Naumov dan.nau...@gmail.com
wrote:
Now that I have evaluated the numbers and my needs a bit, I am really
confused about what appropriate course of action for me would be.
1) Use ZFS without GELI and hope that zfs-crypto get implemented in
Solaris and
I am pretty sure that adding more disks wouldn't solve anything in
this case, only either using a faster CPU or a faster crypto system.
When you are capable of 70 MB/s reads on a single unecrypted disk, but
only 24 MB/s reads off the same disk while encrypted, your disk speed
isn't the problem.
-
On Fri, 29.05.2009 at 12:47:38 +0200, Morgan Wesström wrote:
You can benchmark the encryption subsytem only, like this:
# kldload geom_zero
# geli onetime -s 4096 -l 256 gzero
# sysctl kern.geom.zero.clear=0
# dd if=/dev/gzero.eli of=/dev/null bs=1M count=512
512+0 records in
512+0
Hi Morgan,
thanks for the nice benchmarking trick. I tried this on two ~7.2
systems:
CPU: Intel Pentium III (996.77-MHz 686-class CPU)
- 14.3MB/s
CPU: Intel(R) Pentium(R) 4 CPU 2.80GHz (2793.01-MHz 686-class CPU)
- 47.5MB/s
Reading a big file from the pool of this P4 results in
On Fri, 29.05.2009 at 11:19:44 +0300, Dan Naumov wrote:
Also, free free to criticize my planned filesystem layout for the
first disk of this system, the idea behind /mnt/sysbackup is to take a
snapshot of the FreeBSD installation and it's settings before doing
potentially hazardous things like
Hi
Since you are suggesting 2 x 8GB USB for a root partition, what is
your experience with read/write speed and lifetime expectation of
modern USB sticks under FreeBSD and why 2 of them, GEOM mirror?
- Dan Naumov
Hi Dan,
everybody has different needs, but what exactly are you doing with
Ulrich Spörlein wrote:
2GB CF card + CF to ATA adapter (today, I would use 2x8GB USB sticks,
CF2ATA adapters suck, but then again, which Mobo has internal USB ports?)
Many has internal USB header.
http://www.logicsupply.com/products/afap_082usb
___
On Sun, May 31, 2009 at 9:05 AM, Ulrich Spörlein u...@spoerlein.net wrote:
everybody has different needs, but what exactly are you doing with 128GB
of / ? What I did is the following:
2GB CF card + CF to ATA adapter (today, I would use 2x8GB USB sticks,
CF2ATA adapters suck, but then again,
On Sun, 31.05.2009 at 19:28:51 +0300, Dan Naumov wrote:
Hi
Since you are suggesting 2 x 8GB USB for a root partition, what is
your experience with read/write speed and lifetime expectation of
modern USB sticks under FreeBSD and why 2 of them, GEOM mirror?
Well, my current setup is using an
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
are the performance implications of doing this? The reason I am asking
is that I am in the process of building a small home NAS/webserver,
starting with a single
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
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
Dan Naumov 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
are the performance implications of doing this? The reason I am asking
is that I am in the process of building a small home NAS/webserver,
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
Not at all - but, now you have got me curious, I just went to
a completely different system
Thank you for your numbers, now I know what to expect when I get my
new machine, since our system specs look identical.
So basically on this system:
unencrypted ZFS read: ~70 MB/s per disk
128bit Blowfish GELI/ZFS write: 35 MB/s per disk
128bit Blowfish GELI/ZFS read: 24 MB/s per disk
I am
Dan Naumov wrote:
Thank you for your numbers, now I know what to expect when I get my
new machine, since our system specs look identical.
So basically on this system:
unencrypted ZFS read: ~70 MB/s per disk
128bit Blowfish GELI/ZFS write: 35 MB/s per disk
128bit Blowfish GELI/ZFS
Now that I have evaluated the numbers and my needs a bit, I am really
confused about what appropriate course of action for me would be.
1) Use ZFS without GELI and hope that zfs-crypto get implemented in
Solaris and ported to FreeBSD soon and that when it does, it won't
come with such a dramatic
On Fri, May 29, 2009 at 12:47:38PM +0200, Morgan Wesstr?m wrote:
You can benchmark the encryption subsytem only, like this:
# kldload geom_zero
# geli onetime -s 4096 -l 256 gzero
# sysctl kern.geom.zero.clear=0
# dd if=/dev/gzero.eli of=/dev/null bs=1M count=512
I don't mean to take this
Emil Mikulic wrote:
On Fri, May 29, 2009 at 12:47:38PM +0200, Morgan Wesstr?m wrote:
You can benchmark the encryption subsytem only, like this:
# kldload geom_zero
# geli onetime -s 4096 -l 256 gzero
# sysctl kern.geom.zero.clear=0
# dd if=/dev/gzero.eli of=/dev/null bs=1M count=512
I
On Fri, May 29, 2009 at 2:49 PM, Ivan Voras ivo...@freebsd.org wrote:
Hi,
What is the meaning of counts? Number of calls made or time?
The former.
___
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http://lists.freebsd.org/mailman/listinfo/freebsd-stable
On Fri, May 29, 2009 at 01:49:54PM +0200, Ivan Voras wrote:
Emil Mikulic wrote:
[...]
kernel`SHA256_Transform 1178 6.3%
kernel`rijndaelEncrypt 5574 29.7%
kernel`acpi_cpu_c1 8383
Pardon my ignorance, but what do these numbers mean and what
information is deductible from them?
- Dan Naumov
I don't mean to take this off-topic wrt -stable but just
for fun, I built a -current kernel with dtrace and did:
geli onetime gzero
./hotkernel
dd
Quoting Dan Naumov dan.nau...@gmail.com:
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
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