[Bug 225950] Re: [8.04] Drawing evolution window on screen very slow
Issue not fixed by evolution update mentioned above, and I would not like this to be missed. Clarification: Evolution main panel in LTSP client, and email windows generated by double clicking on an email, are painfully slow to draw. There is a perceptible delay of 2-3 seconds before content is formatted, and when switching windows the previous content of the main panel area remains visible again for 2-3 seconds. Such issues are not apparent at all when using evolution on the LTSP server itself, using the same user profile. -- [8.04] Drawing evolution window on screen very slow https://bugs.launchpad.net/bugs/225950 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 225950] Re: [8.04] Drawing evolution window on screen very slow
After taking two more patches in as many days I can confirm that the issue is still present. Drawing and manipulating the main pane, or email windows, takes too long over LTSP, and much longer than Dapper did on the same equipment. Installed packages: Evolution 2.22.2-0ubuntu1.3; ltsp-server 5.0.40~bzr20080212-0ubuntu6. -- [8.04] Drawing evolution window on screen very slow https://bugs.launchpad.net/bugs/225950 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 861171] Re: Shutdown from greeter does nothing when multiple accounts open
Affects me also as a 64 bit install of 12.04 with four user accounts. A warning and a password over-ride should be generated, as per behaviour in 10.04. As it stands non-admin user cannot now shut down normally at all if another user is logged in, even if the other user's processes are in 'zombie' state. Data loss and / or system damage definitely possible. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/861171 Title: Shutdown from greeter does nothing when multiple accounts open To manage notifications about this bug go to: https://bugs.launchpad.net/indicator-session/+bug/861171/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1698118] Re: Slow disk writes after some uptime, only on 32bit/16+RAM/4+ kernels
Thanks. Running sync && echo "1" | sudo tee /proc/sys/vm/highmem_is_dirtyable on my system improves the situation for intensive read / write, but does not solve the problem. Here are my test results after running the above commands. I should be seeing 4s and 5s all the way down, but instead I see inconsistent behaviour and lagginess in apps while running the test. Solution does seem to be to run a 64 bit kernel. Copying /lib to 1: 14.47 Copying 1 to 2: 4.17 Copying 2 to 3: 4.15 Copying 3 to 4: 4.15 Copying 4 to 5: 4.40 Copying 5 to 6: 6.28 Copying 6 to 7: 13.83 Copying 7 to 8: 12.96 Copying 8 to 9: 12.81 Copying 9 to 10: 10.34 Copying 10 to 11: 10.22 Copying 11 to 12: 5.42 Copying 12 to 13: 4.76 Copying 13 to 14: 4.51 Copying 14 to 15: 8.95 Copying 15 to 16: 9.11 Copying 16 to 17: 8.03 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1698118 Title: Slow disk writes after some uptime, only on 32bit/16+RAM/4+ kernels To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-hwe/+bug/1698118/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1698118] Re: Slow disk writes after some uptime, only on 32bit/16+RAM/4+ kernels
As promised here are the results from the amd64 live DVD (the architecture identifies as 'i386' but this is the default desktop install media identifying as 'amd64') 16.04.2 LTS (Xenial Xerus), 4.8.0-36-generic, i386, RAM=16387048 Copying /lib to 1: 14.20 Copying 1 to 2: 4.24 Copying 2 to 3: 4.28 Copying 3 to 4: 4.15 Copying 4 to 5: 4.35 Copying 5 to 6: 4.24 Copying 6 to 7: 4.31 Copying 7 to 8: 4.25 Copying 8 to 9: 4.12 Copying 9 to 10: 4.16 Copying 10 to 11: 3.92 Copying 11 to 12: 4.38 Copying 12 to 13: 4.17 Copying 13 to 14: 4.35 Copying 14 to 15: 4.26 Copying 15 to 16: 4.57 Copying 16 to 17: 5.64 Copying 17 to 18: 5.78 Copying 18 to 19: 5.87 Copying 19 to 20: 5.02 Copying 20 to 21: 4.30 Copying 21 to 22: 4.11 Again showing no sign of the issue, and even without the issue up to twice as fast in 64 bit compared to 32 bit. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1698118 Title: Slow disk writes after some uptime, only on 32bit/16+RAM/4+ kernels To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-hwe/+bug/1698118/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1698118] Re: Slow disk writes after some uptime, only on 32bit/16+RAM/4+ kernels
Results with modified method including sync on 32bit. Will repeat with 64bit live CD tomorrow evening. 16.04.2 LTS (Xenial Xerus), 4.8.0-54-generic, i386, RAM=16552604 Copying 1 to 2: 8.97 Copying 2 to 3: 7.36 Copying 3 to 4: 7.08 Copying 4 to 5: 6.51 Copying 5 to 6: 6.92 Copying 6 to 7: 7.33 Copying 7 to 8: 7.86 Copying 8 to 9: 8.00 Copying 9 to 10: 11.07 Copying 10 to 11: 10.39 Copying 11 to 12: 16.46 Copying 12 to 13: 56.50 Copying 13 to 14: 233.98 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1698118 Title: Slow disk writes after some uptime, only on 32bit/16+RAM/4+ kernels To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-hwe/+bug/1698118/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1698118] Re: Slow disk writes after some uptime, only on certain hw and 4.4+ kernels
This bug affects me too. $ uname -a Linux aammscott 4.8.0-54-generic #57~16.04.1-Ubuntu SMP Wed May 24 16:20:44 UTC 2017 i686 i686 i686 GNU/Linux -Version- Kernel : Linux 4.8.0-54-generic (i686) Distribution: Ubuntu 16.04.2 LTS -Board- Name: P8H77-V LE Vendor : ASUSTeK COMPUTER INC. (SEAGATE, www.seagate.com) -Computer- Processor : 4x Intel(R) Core(TM) i5-3450 CPU @ 3.10GHz Memory : 16552MB (1441MB used) -SCSI Disks- ATA Crucial_CT2050MX Optiarc DVD RW AD-7280S Originally reported https://ubuntuforums.org/showthread.php?t=2363087= I used the same tests as above, with the following modifications: - Not run as root (NEVER RUN rm -rf AS ROOT!) - cwd set to ~/tmp (mkdir /tmp if you need to) My results on my 16 GB RAM 32 bit install of 16.04.02 (updated) are: Copying /lib to 1: 8.95 Copying 1 to 2: 18.01 Copying 2 to 3: 10.79 Copying 3 to 4: 10.23 Copying 4 to 5: 8.94 Copying 5 to 6: 8.70 Copying 6 to 7: 8.50 Copying 7 to 8: 8.00 Copying 8 to 9: 9.25 Copying 9 to 0: 9.55 Copying 0 to 1: 9.69 Copying 1 to 2: 12.30 Copying 2 to 3: 16.05 Copying 3 to 4: 36.38 Copying 4 to 5: 212.44 Copying 5 to 6: 323.97 To me that is a clear reproduction. I then booted into the live cd of 64 bit 16.04.02, and mounted all my file systems, just as though I was going to reinstall grub, and also mounted my separate /home partition, all under /mnt. I chrooted into /mnt, ran sudo -su to limit myself to normal user privileges, then ran the same test. Results are: Copying /lib to 1: 8.07 Copying 1 to 2: 1.00 Copying 2 to 3: 1.63 Copying 3 to 4: 1.63 Copying 4 to 5: 1.89 Copying 5 to 6: 2.77 Copying 6 to 7: 2.08 Copying 7 to 8: 1.81 Copying 8 to 9: 1.79 Copying 9 to 0: 1.95 Copying 0 to 1: 1.68 Copying 1 to 2: 1.45 Copying 2 to 3: 1.55 Copying 3 to 4: 1.75 Copying 4 to 5: 1.38 Copying 5 to 6: 1.55 Copying 6 to 7: 1.60 Copying 7 to 8: 1.78 Copying 8 to 9: 1.24 Copying 9 to 0: 1.44 Copying 0 to 1: 1.58 Copying 1 to 2: 1.76 Copying 2 to 3: 1.49 Copying 3 to 4: 1.47 Copying 4 to 5: 1.50 Copying 5 to 6: 1.55 Copying 6 to 7: 1.25 Copying 7 to 8: 1.51 Copying 8 to 9: 1.54 Copying 9 to 0: 1.84 Copying 0 to 1: 2.20 Copying 1 to 2: 2.54 Copying 2 to 3: 2.74 Copying 3 to 4: 2.78 Copying 4 to 5: 2.78 Copying 5 to 6: 2.52 Copying 6 to 7: 2.47 Copying 7 to 8: 2.77 Copying 8 to 9: 1.90 Copying 9 to 0: 2.68 Copying 0 to 1: 2.44 Copying 1 to 2: 2.66 Copying 2 to 3: 2.38 Copying 3 to 4: 2.70 Copying 4 to 5: 2.68 Copying 5 to 6: 2.67 Copying 6 to 7: 2.21 Copying 7 to 8: 2.55 Copying 8 to 9: 2.73 Copying 9 to 0: 2.70 Copying 0 to 1: 2.17 Copying 1 to 2: 2.49 Copying 2 to 3: 2.66 Copying 3 to 4: 2.83 Copying 4 to 5: 2.43 Copying 5 to 6: 2.63 Copying 6 to 7: 2.47 Copying 7 to 8: 2.81 Copying 8 to 9: 2.58 Conclusions: - Bug only affects 32 bit installs with 16 GB RAM (or more?) - IO performance under 64 bit on my hardware is 4-5 times better in any case. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1698118 Title: Slow disk writes after some uptime, only on certain hw and 4.4+ kernels To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-hwe/+bug/1698118/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
