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I'm running Ubuntu 14.04. When my PC is idle, I get around 0-2% usage of disk I/O, but immediately after I start doing things like clicking on a web browser or e.g. Atom editor, the read operation occupies disk 100%. Even a simple application like gedit makes it jump to 75%. There doesn't seem to be any reading/writing errors, the reading just takes up the whole bandwidth. Could this indicate hard drive problems and if so, how to proceed?
user2340939
Posted 2017-09-10T15:35:15.107
Reputation: 111
Look into
dmesgto see if there are any read/write errors for your disk(s). Useiotopetc. to find out if there are other process(es) responsible. – dirkt – 2017-09-10T16:54:38.007Like I mentioned, I did check for errors in
dmesgand there are none, alsoiotopand similar apps don't show anything suspicious. – user2340939 – 2017-09-10T23:13:24.760Next thing I'd do is look at SMART data (
smartctl) for anything suspicious. Where do you read off those disk I/O percentages, BTW? If 100% just mean "read works at full speed", that isn't a bad thing ... if the operation takes longer than it should, it isn't. – dirkt – 2017-09-11T05:24:22.033