[Kernel-packages] [Bug 1208993] Re: Ubuntu slows down and hangs while copying file from/to USB

2020-09-14 Thread Yug
[EDIT] I still have the but if my Chrome/Chromium and associated 30 tabs have been started. Even if I close them. Even has htop shows I just have 2.5G/11.6G used. Duplicate of https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1267648 which provides better information on how to replicate on any

[Kernel-packages] [Bug 1208993] Re: Ubuntu slows down and hangs while copying file from/to USB

2020-09-14 Thread Yug
# Objective Monitor dirty files memory, Change to more suitable values. What it does: change from default 10 and 50%. My understanding: If `(vm.dirty_background_ratio/100) * memory size > largest file size`, then it should be ok.[reference needed] Note: `memory size` may be *available* memory

[Kernel-packages] [Bug 1208993] Re: Ubuntu slows down and hangs while copying file from/to USB

2020-09-14 Thread Yug
[EDIT]: * PC hard drive is an SSD as well (upgraded 2 years ago). * Transfer speed from internal SSD to external SSD. (See attached image) ** declared: 40MB/s ** observed: 12kB/s (I hand measured 87sec/1MBs) ** slowing factor: 3000+ * Dirty little hack : unmount then remount external disk hack di

[Kernel-packages] [Bug 1208993] Re: Ubuntu slows down and hangs while copying file from/to USB

2020-09-14 Thread Yug
(This post uses md syntax), ### Software Ubuntu 20.04. < bug still on 20.04. Agree with #103 #101 #94 #78 ### Hardware Several posts above mentioned hardware, RAM or RAM updates, so I will document mine as well. Initial > ASUS K401UB : - Intel Core i5-6200U (2.3GHz) - 4GB DDR3L - 1TB HDD, -