ramdrive from a specific memorychannel

SarahS93 · l33t Joined: 21 Nov 2013 Posts: 725

the system has 64gb total memory (2x 32gb)

dimm-a-1 32gb
dimm-a-2 none
dimm-b-1 32gb
dimm-b-2 none

i will make 2 ramdrives
how can i say that ramdrive1 is from dimm-a-* and ramdrive2 is from dimm-b-* ?
mount -t tmpfs -o size=8G none /mnt/ramdisk1/
mount -t tmpfs -o size=8G none /mnt/ramdisk2/
works, but i found no way to limit this to a specific dimm-channel, how can i do this?!

Zucca · Posted: Fri Jun 07, 2024 9:35 pm Post subject:

You cannot, afaik (somebody correct if I'm wrong).
tmpfs (like many other things) use memory from kernel virtual memory pool.

EDIT: And... I was, at least partly, wrong. Take a look at mpol mount option for tmpfs.
https://www.kernel.org/doc/html/latest/filesystems/tmpfs.html
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