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uma: multipage chicken switch

Description

uma: multipage chicken switch

Add a switch to allow disabling multipage slabs, in order to facilitate
measuring memory usage and performance effects. The tunable
vm.debug.uma_multipage_slabs defaults to 1 and can be set to 0 to
disable. The name may change soon.

Reviewed by: markj (previous version)
Sponsored by: Dell EMC Isilon
Differential Revision: https://reviews.freebsd.org/D23487

Details

Committed
rlibbyFeb 4 2020, 10:40 PM
Reviewer
markj
Differential Revision
D23487: uma: multipage chicken switch
Parents
rS357549: uma: grow slabs to enforce minimum memory efficiency
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