I am using Linux as a desktop, and keep getting seemingly random I/O Spikes. The machine becomes unusably slow. At first I thought it was just that I don't have enough memory. But looking at the output of
top there was nothing out of the ordinary. Same thing for CPU load.
If I don't kill the offending process right away, the machine grinds quickly (in about 10min) to a near complete halt and I have to hard-reset.
A coworker told me he had similar issues and he notices I/O spikes. We have the same machines btw (they ware provided by the company).
I have also noticed that those spikes often occur when opening a new tab in Chrome. But it think it has happened on other occasions as well. Like opening a tab in Firefox, or just randomly out of the blue.
I decided to run
dstat and have a look at the output, but changed my mind and used the
ksysguard, simply because the change is easier to see.
A screenshot of the monitor:
As you can see, there is a spike in disk I/O which coincides with a spike in system load. Strangely, the memory usage goes down at that moment. Could it be related to swap?
The whole spike (the first one) lasted for about 10s.
Any idea what to look out for?