RFC mm: performance improvements
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- v1 RFC Latest14 patches 17 repliesIn review
Patches in v1 No applies recorded yet
| # | Subject and files | Size | Replies | Applied |
|---|---|---|---|---|
| 1/14 | mm: opt rmqueuemm/ | +12 | 4 replies | |
| 2/14 | mm:include/ mm/ | +34 | 0 replies | |
| 2/14 | mm: pte prefetchinclude/ mm/ | +34 | 2 replies | |
| 3/14 | mm: release optmm/ | +14 | 0 replies | |
| 4/14 | mm: rmap optinclude/ include/ mm/ +1 more | +64 | 0 replies | |
| 5/14 | mm: set_page_refs optinclude/ mm/ mm/ +1 more | +17 | 2 replies | |
| 6/14 | mm: microopt conditionsmm/ | +8 | 0 replies | |
| 7/14 | mm: remove bad_rangelib/ mm/ | +10 | 4 replies | |
| 8/14 | mm: remove pcp_lowinclude/ mm/ | +3 | 0 replies | |
| 9/14 | mm: page_state optinclude/ mm/ mm/ +1 more | +81 | 1 reply | |
| 10/14 | mm: single pcp listinclude/ mm/ | +75 | 0 replies | |
| 11/14 | mm: increase pcp sizemm/ | +1 | 0 replies | |
| 12/14 | mm: variable pcp sizemm/ | +13 | 0 replies | |
| 13/14 | mm: cleanup zone_pcpmm/ | +8 | 0 replies | |
| 14/14 | mm: page_alloc cleanupsmm/ | +6 | 0 replies |
Reviews trailers per patch
No Reviewed-by, Acked-by or Tested-by trailers for v1 yet.
Cover letter [rfc][patch 0/14] mm: performance improvements
The following patchset is a set of performance optimisations for the mm subsystem. They mainly focus on the page allocator because that is a very hot path for kbuild, which is my target workload.
Performance improvements are not finely documented yet, so they are not indented for merging yet. Also some rmap optimisations that Hugh probably won't have time to ACK for a while.
However, a slightly older patchset was able to decrease kernel residency by about 5% for UP, and 7.5% for SMP on a dual Xeon doing kbuild.
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