Linux – Ubuntu: tool for displaying disk activity in general and by process

disk-activitylinuxmonitoringperformanceUbuntu

My Ubuntu system is occasionally becoming very sluggish. I'm running many things simultaneously and it's very difficult to tell which program is the culprit.

I suspect that the sluggishness is due to disk activity since the CPU usage is consistently under 50% on each of the 4 cores of the CPU, and over 30% of the 6GB of RAM are free.

Is there a tool that can show me in real time the number of disk IO operations per second and the amount of data read/written per second? Can all this info be broken down and displayed per process?

Best Answer

  • I can recommend iotop, which shows you exactly disk-read and disk-write in bytes per seconds, per process. You can install it with sudo apt-get install iotop in Ubuntu.

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