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My work laptop is an i7 with 16GB RAM and I sometimes see this delay in inputs when running Visual Studio. I type a line of code then wait a few seconds for it to appear.

Weird thing is when it does this, I'm not using all the memory and the CPU is normally sitting way below 50%.

I've no idea why it sometimes just gets unusably slow.

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I had the same thing, I uninstalled GitLens which fixed it (or at least made it rarer). Might be one of your plugins?

Cpu sitting below 100% indicates that the program is spending time waiting for a data fetch from disk or memory.

Or it does not use all cores.

is there any tool out there that monitors IO calls from one specific process?

I get extremely annoyed when applications simply freeze without them doing any important cpu task.

resource monitor in windows can do that

It does not monitor latency caused by cpu doing fetches from ram (to the cache) though? Depending on the app, they can be a real killer.

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