Same here on 16.04 and 14.04 ... I made thousand of disk performance tests and found a lot of unspecific impacts of the performance without reasonable by any other process. Although the following tests are using a LVM vol this is also happen on a "normal" single device
$ hdparm -tT --direct /dev/mapper/VGHOME-LGHOME /dev/mapper/VGHOME-LGHOME: Timing O_DIRECT cached reads: 2158 MB in 2.00 seconds = 1078.39 MB/sec Timing O_DIRECT disk reads: 2118 MB in 3.00 seconds = 705.58 MB/sec $ hdparm -tT --direct /dev/mapper/VGHOME-LGHOME /dev/mapper/VGHOME-LGHOME: Timing O_DIRECT cached reads: 294 MB in 2.03 seconds = 144.49 MB/sec Timing O_DIRECT disk reads: 178 MB in 3.03 seconds = 58.67 MB/sec $ hdparm -tT --direct /dev/mapper/VGHOME-LGHOME /dev/mapper/VGHOME-LGHOME: Timing O_DIRECT cached reads: 280 MB in 2.01 seconds = 139.10 MB/sec Timing O_DIRECT disk reads: 602 MB in 3.02 seconds = 199.42 MB/sec For a long time we assume the virtual environment (VMware vSphere) but in the meanwhile I guess this is a ubuntu problem in special "hardware" environments - paired with larger volumes and a lot of inodes -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to nautilus in Ubuntu. https://bugs.launchpad.net/bugs/1208993 Title: Ubuntu slows down and hangs while copying file from/to USB Status in nautilus package in Ubuntu: Confirmed Bug description: Hi While copying many and large files to and from a USB drive, the system becomes incredibly slow and sometimes hangs. I watched the system monitor while it was running slowly but cpu was not above 50% at any time, the same for memory. I'm using the "WD my passport" HD with a USB3 port of my "ASUS K55VD" laptop. Description: Ubuntu 13.04 Release: 13.04 nautilus: Installed: 1:3.6.3-0ubuntu16 Candidate: 1:3.6.3-0ubuntu16 Version table: *** 1:3.6.3-0ubuntu16 0 500 http://ubuntu-archive.mirror.nucleus.be/ raring/main amd64 Packages 100 /var/lib/dpkg/status Steps to reproduce: 1) Aquire many large files (like your totally legit moviecollection) 2) Copy files to external HD 3) Open your browser and be sad when your system becomes incredibly slow after a few minutes This is my first bugreport so if I'm missing something, please tell me. ProblemType: Bug DistroRelease: Ubuntu 13.04 Package: nautilus 1:3.6.3-0ubuntu16 ProcVersionSignature: Ubuntu 3.8.0-27.40-generic 3.8.13.4 Uname: Linux 3.8.0-27-generic x86_64 ApportVersion: 2.9.2-0ubuntu8.1 Architecture: amd64 Date: Tue Aug 6 22:56:34 2013 EcryptfsInUse: Yes ExecutablePath: /usr/bin/nautilus GsettingsChanges: b'org.gnome.nautilus.window-state' b'geometry' b"'656x715+154+151'" b'org.gnome.nautilus.window-state' b'maximized' b'true' InstallationDate: Installed on 2013-05-31 (67 days ago) InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424) MarkForUpload: True SourcePackage: nautilus UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nautilus/+bug/1208993/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
