[Bug 392204] Re: Huge CPU usage by mount.ntfs process

[Spiralofhope]

This is one of those issues where I can idly conclude that either the
developers don't eat their own dog food (use their own product), the
issue is a legal or social problem, or intentional.

I don't think my use case is particularly strange, and this problem is a
show-stopper.

On top of that, the software I'm using (the game Path of Exile) appears
to have some serious filesystem access inadequacies, and it's
recommended that people use NTFS (even on Wine).  Phooey.

So here's what I've tried:

--

Some of the earlier comments talked about perhaps-related issues being
fixed in earlier versions, and about unofficial repository versions.
I'm using Lubuntu 13.10, updated recently.  My version of ntfs isn't
hopelessly outdated.

  ntfs-3g --version

ntfs-3g 2013.1.13AR.1 external FUSE 29

I assume that any mainline fixes found a year or more before 2013.1
would have been included in what I'm using.  I really don't want to get
into compiling my own version to include anything more recent.

However, perhaps I should take compiling more seriously.  Comment 32
gives some hope, even though it's quite old.

--

comment 77 mentions

  ntfsfix -d /path/to/mountpoint

I did this (after unmounting).  There was no change.

--

comment 83 mentions using a big_writes flag, which I did via fstab:

UUID=FOO  /path/to/mountpoint  ntfs-3g  defaults,noatime,uid=1000  0  2

There was no change.  Perhaps that's to be expected.  According to
http://b.andre.pagesperso-orange.fr/changelog.html :

Version 2011.4.12AR.1 (May 18, 2011)
> defined a mount option big_writes to use application-defined write buffer sizes

I wouldn't be surprised if my particular use doesn't define some more-
optimal write buffer size.

-- 
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https://bugs.launchpad.net/bugs/392204

Title:
  Huge CPU usage by mount.ntfs process

Status in NTFS-3G:
  New
Status in “ntfs-3g” package in Ubuntu:
  Confirmed

Bug description:
  While copying files from one ntfs partition to second ntfs partition
  process 'mount.ntfs' use 42 - 49% procesor resources (probably 100% on
  one core). Second 'mount.ntfs' process use 5% procesor time. (used
  'conky' for inspection)

  / and /home on first sata disk (ext4)
  file source on the second sata (ntfs)
  file target on third sata hdd (ntfs)

  Ubuntu 9.10 Alpha 1 (up-to-date)

  Athlon 2xCore
  nvidia 570 chipset

  ProblemType: Bug
  Architecture: i386
  Date: Thu Jun 25 19:11:54 2009
  DistroRelease: Ubuntu 9.10
  ExecutablePath: /usr/bin/nautilus
  NonfreeKernelModules: nvidia
  Package: nautilus 1:2.27.2-0ubuntu1
  ProcEnviron:
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcVersionSignature: Ubuntu 2.6.30-9.10-generic
  SourcePackage: nautilus
  Uname: Linux 2.6.30-9-generic i686

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