mm: optimisations
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- v1 Latest12 patches 11 repliesIn review
Patches in v1 No applies recorded yet
| # | Subject and files | Size | Replies | Applied |
|---|---|---|---|---|
| 1/12 | mm: free_pages_and_swap_cache optmm/ | +2 | 0 replies | |
| 2/12 | mm: pagealloc optmm/ | +11 | 0 replies | |
| 3/12 | mm: release optmm/ | +14 | 0 replies | |
| 4/12 | mm: set_page_refs optmm/ mm/ | +17 | 0 replies | |
| 5/12 | mm: microopt conditionsmm/ | +8 | 0 replies | |
| 6/12 | mm: remove bad_rangelib/ mm/ | +21 | 2 replies | |
| 7/12 | mm: bad_page optmm/ | +18 | 0 replies | |
| 8/12 | mm: remove pcp lowinclude/ mm/ | +2 | 0 replies | |
| 9/12 | mm: page_state optinclude/ mm/ mm/ +1 more | +113 | 3 replies | |
| 10/12 | mm: page_state fixesmm/ | +2 | 0 replies | |
| 11/12 | mm: page_alloc cleanupsmm/ | +6 | 0 replies | |
| 12/12 | mm: rmap optinclude/ include/ mm/ +1 more | +62 | 2 replies |
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Cover letter [patch 0/12] mm: optimisations
The following patchset against 2.6.15-rc2 contains optimisations to the mm subsystem, mainly the page allocator. Single threaded write-fault based allocation performance is improved ~5% on G5 with SMP kernel, and ~7% on P4 Xeon with SMP kernel (this measurement includes the full fault path, page copy, unmapping, and page freeing, so actual kernel allocator improvement should be larger).
Thanks to feedback from Christoph, Andi, and Bob Picco.
This patchset is cut down to include just straight optimisations and no behavioural changes.
Nick
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