[PATCH 00/10] [v6] Migrate Pages in lieu of discard (Dave Hansen) https://lkml.kernel.org/r/20210304235949.7922C1C3@viggo.jf.intel.com
When the system configured with both DRAM and persistent memory, current kernel starts reclamation when DRAM fulls even though there are some space in persistent memory. And from some point, all page allocation is done on the persistent memory only, even though DRAM has some free slots now.
This patchset mitigates the problem by migrating pages that about to be reclaimed to persistent memory.
[PATCH] mm: introduce clear all vm events counters (Pintu Kumar) https://lkml.kernel.org/r/1614595766-7640-1-git-send-email-pintu@codeaurora.org
Because the vmstat data is only cumulated, users should calculate the diff manually or just reboot. This commit adds a procfs file that can be used to clear all vmstat counters.
[PATCH 0/5] Introduce a bulk order-0 page allocator with two in-tree users (Mel Gorman) https://lkml.kernel.org/r/20210301161200.18852-1-mgorman@techsingularity.net
This patchset introduces a bulk order-0 page allocator. It also makes the sunrpc and the network page pool to use that.
[PATCH v11 00/14] prohibit pinning pages in ZONE_MOVABLE (Pavel Tatashin) https://lkml.kernel.org/r/20210215161349.246722-1-pasha.tatashin@soleen.com
The 11th version of the patchset making ZONE_MOVABLE really movable. In this version, a build error on i386 is fixed.
[RFC PATCH] mm, oom: introduce vm.sacrifice_hugepage_on_oom https://lkml.kernel.org/r/20210216030713.79101-1-eiichi.tsukata@nutanix.com
This RFC patch introduces yet another sysctl knob called vm.sacrifice_hugepage_on_oom. When it is turned on, it tries to free available hugepages before waking oom-killer up.
[RFC] Hugepage collapse in process context (David Rientjes) https://lkml.
[PATCH v2] mm: cma: support sysfs (Minchan Kim) https://lkml.kernel.org/r/20210208180142.2765456-1-minchan@kernel.org
This patch introduces sysfs interface for CMA that shows stats including number of CMA allocation attempts and failures.
[PATCH v10 00/14] prohibit pinning pages in ZONE_MOVABLE (Pavel Tatashin) https://lkml.kernel.org/r/20210211162427.618913-1-pasha.tatashin@soleen.com
The 10th version of the patchset making ZONE_MOVABLE really movable.
Linux 5.11 (Linus Torvalds) https://lkml.kernel.org/r/CAHk-=wg8LpRi9+P2_V+ehJ2_EoJifNh2QmVf47aLXfkCd-1UAQ@mail.gmail.com
Nothing strange happened last week, so Linus released v5.11 as expected. The number of changes from the rc7 to this release is actually even smaller than average.
[RFC 00/20] TLB batching consolidation and enhancements (Nadav Amit) https://lkml.kernel.org/r/20210131001132.3368247-1-namit@vmware.com
This patchset prepares more aggressive TLB flushing batching by consolidating a few TLB batching methods.
[PATCH v9 00/14] prohibit pinning pages in ZONE_MOVABLE (Pavel Tatashin) https://lkml.kernel.org/r/20210201153827.444374-1-pasha.tatashin@soleen.com
This patchset makes ZONE_MOVABLE really movable by prohibiting pinning of pages in the zone.
Augmented Page Reclaim (Yu Zhao) https://lkml.kernel.org/r/YBkT6175GmMWBvw3@google.com
This mail shares a part of decade researh/experimentation in memory overcommit at Google. The author wants to start submitting patch based on responses.
[RFC][PATCH 00/13] [v5] Migrate Pages in lieu of discard (Dave Hansen) https://lkml.kernel.org/r/20210126003411.2AC51464@viggo.jf.intel.com
If a system has a small DRAM and a large persistent memory (PMEM), reclamation starts when DRAM fills up, and newer allocations will done on PMEM. This patchset makes the reclaim logic to migrate pages to PMEM instead of just discarding it.
[PATCH v3 00/25] Page folios (Matthew Wilcox) https://lkml.kernel.org/r/20210128070404.1922318-1-willy@infradead.org
This patchset introduces a new data structure called page folio.
[PATCH v2 00/27] Page folios (Matthew Wilcox) https://lkml.kernel.org/r/20210118170148.3126186-1-willy@infradead.org
This is the second version of the page folios patchset. This introduces a new struct named folio. Functions that receive folio as an argument always receives head page, so the function don’t need to do compound_head().
[PATCH -V9 0/3] numa balancing: Migrate on fault among multiple bound nodes (Huang Ying) https://lkml.kernek.org/r/20210120061235.148637-1-ying.huang@intel.com
This patch make optimization of cross-socket memory accesses for AutoNUMA in case of application is bound to multiple NUMA nodes possible.
[PATCH] mm: thp: introduce NR_PARTIAL_THPS (Bin Wang) https://lkml.kernel.org/r/20210112021208.1875-1-wangbin224@huawei.com
Because partially unmapped THP is not split, the memory stat becomes confusing. This patch add another counter called NR_PARTIAL_THPS in node_stat_item to reduce such confusions.
[PATCH v2 00/70] RFC mm: Introducing the Maple Tree (Liam R. Howlett) https://lkml.kernel.org/r/20210112161240.2024684-1-Liam.Howlett@Oracle.com
Second RFC of the Maple tree. It is an RCU-safe B-tree that aims to be used as the vma tree with better scalability.
[PATCH] mm/debug: Improve memcg debugging (Matthew Wilcox) https://lkml.
[PATCH] mm: vmscan: support complete shrinker reclaim (Sudarshan Rajagopalan) https://lkml.kernel.org/r/2d1f1dbb7e018ad02a9e7af36a8c86397a1598a7.1609892546.git.sudaraja@codeaurora.org
This patch makes caches can dropped even when those are smaller than the batch size.
[PATCH 0/6] hugetlbfs: support free page reporting (Liang Li) https://lkml.kernel.org/r/20210106034623.GA1128@open-light-1.localdomain
Because hugetlbfs is using reserved memory, it’s not reported by the free page reporting feature. This patch makes it able to be reported.
Linux 5.11-rc3 (Linus Torvalds) https://lkml.kernel.org/r/CAHk-=wizR7--Ub-rasYx2S5XURkooCQ63Sat23BpvTAuN0scQA@mail.gmail.com
The prediction of Linus for this release was wrong.
Linux 5.11-rc2 (Linus Torvalds) https://lkml.kernel.org/r/CAHk-=whS+rzNMSsU6vRoLMzrm0JPN-OVg+BxhybMet3NpqpR-Q@mail.gmail.com
Due to the holiday season, rc2 ends up fairly small. Maybe we will see rc8 for v5.11, but Torvalds just saying let’s watch more.
Below is the diffstat of the releases in the last two years.
Note that the y-axis is in logarithm. I draw it using https://github.com/sjp38/relstat and https://github.com/sjp38/lazybox using below command:
$ relstat.py --since 2019-01-04 | ~/lazybox/gnuplot/plot.py \ --data_fmt table --type labeled-lines --xtics_rotate -90 \ --font "Times New Roman, 5pt" --ylog --pointsize 0.