Go Job Hunting at the LQ Job Marketplace
Go Back > Forums > Linux Forums > Linux - Hardware
User Name
Linux - Hardware This forum is for Hardware issues.
Having trouble installing a piece of hardware? Want to know if that peripheral is compatible with Linux?


  Search this Thread
Old 09-30-2010, 04:31 AM   #1
Registered: Aug 2010
Distribution: Debian
Posts: 35

Rep: Reputation: 0
External HDD write speeds slower than Windows?

When I copy files to my External NTFS HDD using Ubuntu the write speeds are about 10-12 MB/sec, but when I copy files using Windows the write speeds are about 25-30 MB/sec.

Exact same files, tried all three ports on my netbook and even timed it to see if the speeds are by any chance miscalculated by either operating system and Ubuntu is definitely writing at half the speed.

So what could be the problem? When I had Windows on this Netbook I never got had a problem with write speeds so I don't think it is a hardware issue.
Old 09-30-2010, 09:26 AM   #2
Registered: Mar 2006
Location: Czech Republic
Distribution: Gentoo, Chakra
Posts: 881
Blog Entries: 11

Rep: Reputation: 104Reputation: 104
Hi, this is (perfectly) normal : NTFS support under Linux isn't very good. It's done using the ntfs-3g driver, which runs in userspace using the FUSE feature of linux (already some overhead there). Add to that a not completely optimized FS driver, and you get slow speeds. Sorry, ntfs support under Linux at least exists now though...

If I'm wrong, please anyone correct me, this was just my explanation when seeing my CPU usage spike while writing to NTFS.



Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Ext3 Partition on External HDD have no write access Ikbosh Linux - Hardware 7 04-15-2010 07:41 AM
Ubuntu - significantly slower downloads speeds - how do I fix? Jonomc Linux - Networking 4 05-08-2009 01:03 PM
How do i remove write-protection on my external hdd? Donati Linux - Software 15 03-18-2009 08:31 PM
New router - slower speeds shame Linux - Networking 12 10-21-2007 12:05 AM
cannot write on external HDD trutnev Red Hat 2 03-20-2004 03:02 PM

All times are GMT -5. The time now is 04:26 PM.

Main Menu
Write for LQ is looking for people interested in writing Editorials, Articles, Reviews, and more. If you'd like to contribute content, let us know.
Main Menu
RSS1  Latest Threads
RSS1  LQ News
Twitter: @linuxquestions
Facebook: linuxquestions Google+: linuxquestions
Open Source Consulting | Domain Registration