Differential D23046

Fix zone and keg alignment as well as boot pages calculations on numa.
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Authored by jeff on Jan 5 2020, 11:53 PM.

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rlibby
markj

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rS356393: Fix uma boot pages calculations on NUMA machines that also don't have

Summary

While making NUMA amd64 w/o MD_SMALL_ALLOC boot I noticed a number of numa bugs but also weaker than required alignment. In practice the alignment of zones was actually dictated by the alignment of the per-cpu cache structure. This just clarifies existing behavior while simplifying code.

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rS FreeBSD src repository - subversion

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Event Timeline

jeff created this revision.Jan 5 2020, 11:53 PM

Harbormaster completed remote builds in B28494: Diff 66394.Jan 5 2020, 11:54 PM

jeff edited the summary of this revision. (Show Details)Jan 5 2020, 11:55 PM

jeff added reviewers: rlibby, markj.

jeff set the repository for this revision to rS FreeBSD src repository - subversion.

Herald added a subscriber: imp. · View Herald TranscriptJan 5 2020, 11:55 PM

jeff added inline comments.Jan 5 2020, 11:56 PM

sys/amd64/include/vmparam.h
79 ↗	(On Diff #66394)	obviously not committing this.

rlibby accepted this revision.Jan 6 2020, 12:10 AM

This revision is now accepted and ready to land.Jan 6 2020, 12:10 AM

markj accepted this revision.Jan 6 2020, 1:03 AM

markj added inline comments.

sys/vm/uma_int.h
169 ↗	(On Diff #66394)	Typo: terminology. I think we used to define CACHE_LINE_SIZE to 128 on amd64 for this reason. I'm not sure when that changed.

Closed by commit rS356393: Fix uma boot pages calculations on NUMA machines that also don't have (authored by jeff). · Explain WhyJan 6 2020, 2:51 AM

This revision was automatically updated to reflect the committed changes.

jeff added a commit: rS356393: Fix uma boot pages calculations on NUMA machines that also don't have.

Revision Contents
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head/

sys/

vm/

70 lines

11 lines

13 lines

Diff 66398

head/sys/vm/uma_core.c

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head/sys/vm/uma_int.h

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head/sys/vm/vm_page.c

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