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Performance tanking during swapping (lemm.ee)

submitted 1 day ago by [email protected] to c/[email protected]

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Hi guys!

I have what I'd consider a beefy gaming PC. AMD 7700 CPU, 32GB RAM, 7800XT 16GB, NVMe 1TB for OS, mSATA SSD 2TB for storage/games.

So...whenever I get a while using the computer, with a bunch of windows open, say firefox taking 4GB of RAM, total for everything a bit over 16GB...I'm prone to get a whole system slowdown/freeze, which can take a few full minutes until it settles. I can see the storage red led on the whole time without blinking, so it really looks like swapping.

However sometimes I don't see movements in the system process viewer, in usage from RAM/swap, I'd imagine those graphs would change if the data in swap has changed.

Swapping is set in the mSATA, taking 8GB, so I reckon that migth not be the fastest. Still, that's an SSD. I'm not sure how can I check/troubleshoot whatever is tanking my computer performance?

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[–] [email protected] 10 points 1 day ago

Rather than guessing at whether it's swapping, why not check your swap usage? Running free -h in a shell will give you a brief overview of memory usage. Various GUI system monitors will graph it.

You can also find out what process is hitting your storage so hard with a tool like iotop.