Am Freitag, 20. Juli 2012 schrieb Shavi N:
On Fri, Jul 20, 2012 at 12:19 AM, Martin Steigerwald
mar...@lichtvoll.de wrote:
Am Donnerstag, 19. Juli 2012 schrieb Shavi N:
Hi,
Hi Shavi,
Thanks.
This is the output:
btrfs:
$ dd if=/dev/zero of=/mnt/shared/misc/temp_file
Martin,
I agree with you 100% that dd does not measure proper performance (and
that /dev/zero is not a very good test).
Hence I'm asking.. I know that I get fast copy/write speeds on the
btrfs volume from real life situations, but NOT with samba.
So, is there something I can do to test why samba
Am Freitag, 20. Juli 2012 schrieb Remco Hosman:
11 really fast 15000rpm FC / SAS disks could possibly do 936 MB/s.
But regular 7200rpm SATA disks depending to the on disk location
might be as slow as 40-50 MB/s – just try fio disk-zone-profile on
one if you do not believe this – and then
Hi!
Am Donnerstag, 19. Juli 2012 schrieb Bernhard Redl:
On 07/19/2012 03:42 AM, Shavi N wrote:
Hi,
I have btrfs volume, shared via samba. I have a directory of
documents that I want to backup on my server. win7 reports a
maximum of ~3.10MB/s transfer transferring the same directory on
Hi,
Thanks.
This is the output:
btrfs:
$ dd if=/dev/zero of=/mnt/shared/misc/temp_file bs=1M count=1400
1400+0 records in
1400+0 records out
1468006400 bytes (1.5 GB) copied, 1.56841 s, 936 MB/s
ext4:
$ dd if=/dev/zero of=/mnt/500/VirutalBox_VMs/thor/thor-data/temp_file
bs=1M count=1400
1400+0
On Thu, Jul 19, 2012 at 7:39 PM, Shavi N shav...@gmail.com wrote:
So btrfs gives a massive difference locally, but that still doesn't
explain the slow transfer speeds.
Is there a way to test this?
I'd try with real data, not /dev/zero. e.g:
dd_rescue -b 1M -m 1.4G /dev/sda testfile.img
... or
Am Donnerstag, 19. Juli 2012 schrieb Shavi N:
Hi,
Hi Shavi,
Thanks.
This is the output:
btrfs:
$ dd if=/dev/zero of=/mnt/shared/misc/temp_file bs=1M count=1400
1400+0 records in
1400+0 records out
1468006400 bytes (1.5 GB) copied, 1.56841 s, 936 MB/s
ext4:
$ dd if=/dev/zero
Hi,
Yes I read and understood your email. my btrfs volume consists of 11
HDD's. I was very surprised with that result myself...
On Fri, Jul 20, 2012 at 12:19 AM, Martin Steigerwald
mar...@lichtvoll.de wrote:
Am Donnerstag, 19. Juli 2012 schrieb Shavi N:
Hi,
Hi Shavi,
Thanks.
This is the
Hi,
I have btrfs volume, shared via samba.
I have a directory of documents that I want to backup on my server.
win7 reports a maximum of ~3.10MB/s transfer
transferring the same directory on a ext4 samba share I get 25MB/s +
Any ideas?
Is it like that because of how btrfs works and is setup?
Did you try creating an huge file directly on your linux host
with
dd if=/dev/zero of=/mnt/YOURPATH/file bs=1M count=1400
dd will report the speed afterwards.
You can also try copying the documents from ext4 to a ramfs and then
copy them from the ramfs to btrfs.
On 07/19/2012 03:42 AM, Shavi N
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