On 16/11/24 21:08, Barry Scott wrote:
On 15 Nov 2024, at 22:59, Stephen Morris steve.morris.au@gmail.com wrote:
(the hard disk light is permanently on, not flickering)
There are better tools for investigating this type of I/O issue.
You could have a read of this article that explains how to track down disk I/O issues: https://www.baeldung.com/linux/monitor-disk-io
Thanks Barry, I'll have a look at that. I have added disk I/O to the HTOP summary display at the top of its screen which has highlighted, in my view, that HTOP is doing things wrong, as the summary display says the disk I/O is 100% but the details display on what is performing I/O says that nothing is doing any I/O.
If you are interested in systems performance have a look at getting Brendan Gregg's "Systems Performance" book.
I'll have a look at getting that too, as I had an issue this morning when I put on the available updates with DNF, in that when DNF was applying the updates it locked my system out, I couldn't even move the mouse pointer until DNF was finished.
regards, Steve
Barry