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Improve write speed 
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Joined: Thu Dec 18, 2014 17:38
Posts: 2
Post Improve write speed
connected my 3tb hdd via esata expresscard on my notebook running lubuntu.

Code:
edy@edy-t43:~$ mount
/dev/sdb2 on /media/PUBLIC_HDD type fuseblk (rw,nosuid,nodev,allow_other,blksize=4096)

edy@edy-t43:~$ dd count=1k bs=1M if=/dev/zero of=/media/PUBLIC_HDD/test.img
1024+0 records in
1024+0 records out
1073741824 bytes (1.1 GB) copied, 42.6892 s, 25.2 MB/s


how can i achieve faster speed?


Thu Dec 18, 2014 17:51
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NTFS-3G Lead Developer

Joined: Tue Sep 04, 2007 17:22
Posts: 1286
Post Re: Improve write speed
Hi,

Quote:
how can i achieve faster speed?

If you mostly need to create big files, it may be useful to increase the buffer size, by mounting with option big_writes.
Code:
dd count=1k bs=1M if=/dev/zero of=/media/PUBLIC_HDD/test.img

Selecting 1M as the buffer size has no effect when the standard fuse write buffer size is 4K. When using big_writes, you can use up to 128K.

Regards

Jean-Pierre


Thu Dec 18, 2014 22:02
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Joined: Thu Dec 18, 2014 17:38
Posts: 2
Post Re: Improve write speed
jpa wrote:
Hi,

Quote:
how can i achieve faster speed?

If you mostly need to create big files, it may be useful to increase the buffer size, by mounting with option big_writes.
Code:
dd count=1k bs=1M if=/dev/zero of=/media/PUBLIC_HDD/test.img

Selecting 1M as the buffer size has no effect when the standard fuse write buffer size is 4K. When using big_writes, you can use up to 128K.

Regards

Jean-Pierre


Thanks for your reply. I'm already using big_writes in my /etc/fstab, not sure why mount command does not report it.

Code:
#Entry for /dev/sdc2 :
UUID=70322F5D322F2814   /media/PRIVATE_HDD      ntfs-3g defaults,nosuid,nodev,locale=en_US.UTF-8,big_writes     0       0


Previously I'm able to transfer at this speed on my gigabit lan from my desktop pc (iirc, the notebook was running win7 instead of linux)

Image

and this is my current speed

Image


Sat Dec 20, 2014 05:01
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