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by dist-epoch 53 days ago
Many people have desktops with 128 GB RAM. Should they enable hugepages? I've never heard this recommendation for a desktop.
2 comments
nijave 53 days ago
Huge pages is good when a single process is reserving a giant block of memory which I think isnt that common.

You might have transparent huge pages on by default depending on the distro

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fc417fc802 52 days ago
No idea about hugepages but mmaping giant blocks of memory is extremely common. IIRC Chrome maps something like 1 TB on startup.

I think (?) you don't actually see benefit from hugepages unless you actually write to a large amount of memory though.

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baq 53 days ago
If they’re running any sort of a vm (which they probably do with this amount of ram) they absolutely should and also should consider pre-reserving them.
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