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Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).

Distributions include the Linux kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name GNU/Linux to emphasize the importance of GNU software, causing some controversy.

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Is there a way to monitor memory bandwidth utilisation? (lemmy.ml)

submitted 1 month ago* (last edited 1 month ago) by HiddenLayer555@lemmy.ml to c/linux@lemmy.ml

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KDE System Monitor and the like have easy ways of monitoring how many bits per second are going in and out of your storage at a given time, is there anything similar for memory?

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[–] wewbull@feddit.uk 3 points 1 month ago

Depends on two things

What performance counters your CPU has.
What you consider to be a memory load.

Tools like perf on Linux can get you access to your processors performance counters and you'll be able to see how many "events" occur while a process is running.

What's an event? Well they can be configured to monitor all sorts of things in the CPU. Instructions executed, Interrupts, page table misses, and on some loads / stores.

Memory systems on a CPU aren't straightforward though. They contain multiple levels of cache, each of which reduces the number of accesses which go to the next layer. So depending on which level you measure, you'll get different numbers.