LKML News v5.18-rc5

[PATCH v5 0/4] memcg: introduce per-memcg proactive reclaim (Yosry Ahmed)

https://lkml.kernel.org/r/20220425190040.2475377-1-yosryahmed@google.com

The fifth version of the patchset for adding per-memch proactive reclamation trigger interface.

mmotm 2022-04-25-17-59 uploaded (Andrew Morton)

https://lkml.kernel.org/r/20220426005932.848CBC385A4@smtp.kernel.org

The mmotm has updated. It has rebased on 5.18-rc4, added 62 new patches, modified 8 patches, and dropped 19 patches. In total, 334 patches in the queue.

[PATCH -V2 0/3] memory tiering: hot page selection (Huang Ying)

https://lkml.kernel.org/r/20220426085105.60822-1-ying.huang@intel.com

This patchset adds hot pages selection to the tiered memory promotion mechanism for better performance.

[PATCH v8 00/70] Introducing the Maple Tree (Liam Howlett)

https://lkml.kernel.org/r/20220426150616.3937571-1-Liam.Howlett@oracle.com

The eighth patchset for Maple tree has updated. It includes fixes on top of the version that merged in mglru-maple branch of akpm’s tree.

mmotm 2022-04-26-19-29 uploaded (Andrew Morton)

https://lkml.kernel.org/r/20220427023010.C52C0C385A4@smtp.kernel.org

The mmotm has updated. It’s based on 5.18-rc4, added 88 new patches, modified 29 patches, and dropped 12 patches. In total, 410 patches in the queue.

incoming (Andrew Morton)

https://lkml.kernel.org/r/20220427124133.cc115bc8acb8de3dda921836@linux-foundation.org

Two fixes for mm subsystem have sent from Andrew to Linus.

[PATCH 0/2] Finalising swap-over-NFS patches (Neil Brown)

https://lkml.kernel.org/r/165119280115.15698.2629172320052218921.stgit@noble.brown

This patchet enables swap over NFS works largely.

RFC: Memory Tiering Kernel Interfaces (Wei Xu)

https://lkml.kernel.org/r/CAAPL-u9sVx94ACSuCVN8V0tKp+AMxiY89cro0japtyB=xNfNBw@mail.gmail.com

Wei is proposing a new memory tiering interfaces and requesting comments on it.

Linux 5.18-rc5 (Linus Torvalds)

https://lkml.kernel.org/r/CAHk-=wjUhfhaes6_hMYDQFTbGjkmA-j2ZSeXZ32H66ufRfYrmQ@mail.gmail.com

Unlike the rc4, which released last week and was tiny smaller than usual, a little bit larger than usual rc5 has released. It seems it’s due to the smaller rc4.

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 2020-05-02 | ~/lazybox/gnuplot/plot.py \
    --data_fmt table --type labeled-lines --xtics_rotate -90 \
    --font "Times New Roman, 5pt" --ylog --pointsize 0.3

And, below is the diffstat of the -rc5 releases in the last two years.