LKML News v6.2-rc5
[RFC] memory pressure detection in VMs using PSI mechanism for dynamically inflating/deflating VM memory (Sudarshan Rajagopalan)
Qualcomm’s Linux memory team asks upstream’s opinion about their userspace deamon approach for controlling VM memory size based on memory demands via monitoring PSI.
[PATCH v1 0/3] Introduce per NUMA node memory error statistics (Jiaqi Yan)
https://lkml.kernel.org/r/20230116193902.1315236-1-jiaqiyan@google.com
On huge memory systems, memory error is inevitable, so detailed statistics of it helps administrators to operate systems more efficiently. This patchset adds NUMA level memory error statistics.
[PATCH v6 0/3] cachestat: a new syscall for page cache state of files (Nhat Pham)
https://lkml.kernel.org/r/20230117195959.29768-1-nphamcs@gmail.com
Sixth version of the patchset for efficient page cache state of files collection has posted.
[PATCH v6 0/5] shoot lazy tlbs (Nicholas Piggin)
https://lkml.kernel.org/r/20230118080011.2258375-1-npiggin@gmail.com
The lazy tlb shootdown patchset is revised with last suggested modification from Andy and Linus.
Linux 6.2-rc5 (Linus Torvalds)
https://lkml.kernel.org/r/CAHk-=wg+E9tTCrSqBOxejUX11f8ebyRWQ+4exC=cmOEupX_d7Q@mail.gmail.com
Unlike the expectation, the winter holidays season effect is not finished. The fifth releae candidate of Linux v6.2 ended up having some size. Linus also note that Linux v6.2 will have rc8 regardless of this, as we apparently lost one or two weeks.
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 2021-01-23 | ~/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 -rc4 releases in the last two years.
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SeongJae Park (SJ)
Kernel Programmer
SeongJae Park (SJ) is a programmer who loves to analyze and develop systems.