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
