NTFS write speed really slow (<15MB/s)
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Zulakis
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Published on 2013-06-30T17:05:42Z
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2013/06/30
22:23 UTC
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I got a new Seagate 4TB harddrive formatted with ntfs using
parted /dev/sda
> mklabel gpt
> mkpart pri 1 -1
mkfs.ntfs /dev/sda1
When copying files or testing writespeed with dd
, the max writespeed I can get is about 12MB/s
. The harddrive should be capable of atleast 100MB/s
.
top
shows high cpu usage for the mount.ntfs
process. The system has a AMD dualcore.
This is the output of parted /dev/sda unit s print
:
Model: ATA ST4000DM000-1F21 (scsi)
Disk /dev/sda: 7814037168s
Sector size (logical/physical): 512B/4096B
Partition Table: gpt
Number Start End Size File system Name Flags
1 2048s 7814035455s 7814033408s pri
The used kernel is 3.5.0-23-generic
.
The ntfs-3g
versions I tried are ntfs-3g 2012.1.15AR.1
(ubuntu 12.04 default) and the newest version ntfs-3g 2013.1.13AR.2
. When formatted with ext4 I get good write speeds with about 140MB/s
.
How can I fix the writespeed?
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