Public bug reported:
After upgrading to 4.4.0-22-lowlatency (or 4.2.0-36-generic 4.4.0-22-generic)
kernel (from kernel 3.19.0-32-generic) KTorrent downloading to NTFS partition
(FUSE) significantly degraded performance and latency.
For instance during the download to NTFS partition (FUSE) KTorrent hanged for
seconds, download speed decreased, sometimes up to 400Kbit/s. There is no such
issue with 3.19.0-32-generic kernel. But with that old kernel there is other
issue (epic bug 12309) , that I've commented on bugzilla.kernel.org:
https://bugzilla.kernel.org/show_bug.cgi?id=12309#c640
ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: linux-image-generic-lts-xenial 4.4.0.22.12
ProcVersionSignature: Ubuntu 4.4.0-22.40~14.04.1-lowlatency 4.4.8
Uname: Linux 4.4.0-22-lowlatency x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.14.1-0ubuntu3.20
Architecture: amd64
CurrentDesktop: MATE
Date: Thu May 19 22:27:56 2016
EcryptfsInUse: Yes
InstallationDate: Installed on 2016-03-13 (67 days ago)
InstallationMedia: Linux Mint 17.3 "Rosa" - Release amd64 20151128
SourcePackage: linux-meta-lts-xenial
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: linux-meta-lts-xenial (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug rosa third-party-packages
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https://bugs.launchpad.net/bugs/1583768
Title:
Ubuntu kernels 4.2 and 4.4 I/O slowdown with KTorrent on NTFS
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