Page MenuHomeFreeBSD

Set VM_KMEM_SIZE_SCALE to 1 on riscv and arm64
ClosedPublic

Authored by markj on Jan 18 2021, 6:47 PM.

Details

Summary

This parameter limits the amount of memory that can be allocated to UMA.
On systems with a direct map and ample KVA, however, I can't see a
reason for VM_KMEM_SIZE_SCALE to be larger than 1. I believe it was
copied from 32-bit ARM to arm64 and from there to riscv.

Diff Detail

Repository
R10 FreeBSD src repository
Lint
Automatic diff as part of commit; lint not applicable.
Unit
Automatic diff as part of commit; unit tests not applicable.

Event Timeline

markj requested review of this revision.Jan 18 2021, 6:47 PM
This revision is now accepted and ready to land.Jan 18 2021, 7:02 PM

Similarly, there is no reason to define VM_KMEM_SIZE_MIN.

Remove VM_KMEM_SIZE_MIN as well.

This revision now requires review to proceed.Jan 19 2021, 12:35 AM
This revision is now accepted and ready to land.Jan 19 2021, 6:54 AM
This revision was automatically updated to reflect the committed changes.