On 5 Feb 2024, at 3:16, Baolin Wang wrote: > On 2/3/2024 12:15 AM, Zi Yan wrote: >> From: Zi Yan <ziy@xxxxxxxxxx> >> >> Hi all, >> >> This patchset enables >0 order folio memory compaction, which is one of >> the prerequisitions for large folio support[1]. It includes the fix[4] for >> V2 and is on top of mm-everything-2024-01-29-07-19. >> >> I am aware of that split free pages is necessary for folio >> migration in compaction, since if >0 order free pages are never split >> and no order-0 free page is scanned, compaction will end prematurely due >> to migration returns -ENOMEM. Free page split becomes a must instead of >> an optimization. >> >> lkp ncompare results for default LRU (-no-mglru) and CONFIG_LRU_GEN are >> shown at the bottom (on a 8-CPU (Intel Xeon E5-2650 v4 @ 2.20GHz) 16G VM). >> In sum, most of vm-scalability applications do not see performance change, >> and the others see ~4% to ~26% performance boost under default LRU and >> ~2% to ~6% performance boost under CONFIG_LRU_GEN. > > For the whole series, looks good to me. And I did not find any regression after running thpcompact. So feel free to add: > Reviewed-by: Baolin Wang <baolin.wang@xxxxxxxxxxxxxxxxx> > Tested-by: Baolin Wang <baolin.wang@xxxxxxxxxxxxxxxxx> Thank you for the review and testing. -- Best Regards, Yan, Zi
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