Ever since I got wsl2 on my machine (9 months) I have seen the Vmmem task in task manager consuming upwards of 80% of my 48GB installed ram and I am in desperate need of a fix. I am compiling LLVM and because of the memory consumption I have had to reduce the number of parallel link jobs to 1 and limit threading in make to -j8 (prefer -j12 or -j16) resulting in suboptimal build times.
Đang xem: Vmmem là gì
Apparently this is a known issue: https://github.com/microsoft/WSL/issues/4166
There are a couple fixes there, namely dealing with /proc/sys/vm/drop_caches, but I was wondering if anyone had any other fixes because the second I run a compilation after this the memory spikes back up to 99% and gets stuck there again.
System details: Ryzen 9 3900x, 48 GB ram, windows 10 educational insider preview, build 19582.rs_prerelease.200306-1640
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level 1
8 months ago
you can limit the amount of ram WSL 2 can use by specifying it in the .wslconfig file in your user folder.
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level 2
Original Poster8 months ago
I don't want to limit the ram to a fixed cap, I would like wsl2 to be able to use as much ram as it needs to do its work, but then I need it to actually release it instead of caching a bunch of files for no reason.
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level 1
8 months ago · edited 8 months ago
powershell
wsl –shutdown
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level 2
8 months ago
Dropping the cache is a better solution. Shutting down interrupts things like Docker and kills your workflow.
I've been limiting memory and dropping cache and it's been working out okay for me.
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Original Poster8 months ago
Shutting down wsl is not the answer here, if i have 5 terminals open and am working in all of them, if i shut wsl down then I have to reopen all of my terminals. That doesnt seem like a fix, more of a “turn it off and back on”
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