Wubi

WUBI installation: mount.ntfs takes all CPU

Asked by Serghei Tiutiun

I have a fresh installation of Ubuntu 12.04.

It is extremely slow during any operations with HDD.
If I check process list - I see that mount.ntfs takes all CPU.

I have only one harddrive /dev/sda

I used to have Ubuntu 10.04 on the same laptop and it used to run like a swiss watch - no any shade of performance issues.

Here are some logs:
/var/log/kern.log - there are millions of such records.
-------------
Jul 19 11:05:10 ubuntu kernel: [ 2174.999021] sd 6:0:0:0: [sdb] Assuming drive cache: write through
Jul 19 11:06:02 ubuntu kernel: [ 2226.708919] sd 6:0:0:0: [sdb] Test WP failed, assume Write Enabled
Jul 19 11:06:02 ubuntu kernel: [ 2226.711044] sd 6:0:0:0: [sdb] Asking for cache data failed
Jul 19 11:06:02 ubuntu kernel: [ 2226.711051] sd 6:0:0:0: [sdb] Assuming drive cache: write through
Jul 19 11:06:54 ubuntu kernel: [ 2278.420799] sd 6:0:0:0: [sdb] Test WP failed, assume Write Enabled
Jul 19 11:06:54 ubuntu kernel: [ 2278.422907] sd 6:0:0:0: [sdb] Asking for cache data failed
Jul 19 11:06:54 ubuntu kernel: [ 2278.422913] sd 6:0:0:0: [sdb] Assuming drive cache: write through
Jul 19 11:07:45 ubuntu kernel: [ 2330.132949] sd 6:0:0:0: [sdb] Test WP failed, assume Write Enabled
Jul 19 11:07:45 ubuntu kernel: [ 2330.135181] sd 6:0:0:0: [sdb] Asking for cache data failed
---------------------

I am wondering what was changed since 10.04 and what can be fixed?

Thank you

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Serghei Tiutiun
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Revision history for this message
actionparsnip (andrew-woodhead666) said : 		#1

Did you upgrade to Precise from Lucid or is it a new install from nothing?

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Serghei Tiutiun (tiutiun) said : 		#2

Hi actionparsnip,

It is a new install.
As a host OS I have Windows XP.

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actionparsnip (andrew-woodhead666) said : 		#3

It's not a virtual OS, so there isn't really a host OS per-se, there is just a disk file stored in your NTFS (so the performance of Ubuntu will be directly affected by fragmentation). The file is loop mounted and used to boot with if it is selected :)

Have you defragged your Windows install recently?

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Serghei Tiutiun (tiutiun) said : 		#4

Have done defragmentation and now it is much-much faster.
Still not as fast as it used to be in 10.04, but anyway - I can work now :-)

Thank you very much :-)

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actionparsnip (andrew-woodhead666) said : 		#5

The crappiness in your NTFS ill directly affect the performance of Ubuntu which is why it's not great. Ubuntu uses ext4 so will not fragment and there isn't even a defrag tool for it. I suggest a proper install in future and you will completely bypass this issue in every way.