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158863e5d7
Attempt writeback with the below steps and check using memory.stat.zswpwb if zswap writeback occurred: 1. Allocate memory. 2. Reclaim memory equal to the amount that was allocated in step 1. This will move it into zswap. 3. Save current zswap usage. 4. Move the memory allocated in step 1 back in from zswap. 5. Set zswap.max to half the amount that was recorded in step 3. 6. Attempt to reclaim memory equal to the amount that was allocated, this will either trigger writeback if it's enabled, or reclamation will fail if writeback is disabled as there isn't enough zswap space. Link: https://lkml.kernel.org/r/20240508171359.1545744-1-usamaarif642@gmail.com Signed-off-by: Usama Arif <usamaarif642@gmail.com> Suggested-by: Nhat Pham <nphamcs@gmail.com> Acked-by: Yosry Ahmed <yosryahmed@google.com> Acked-by: Nhat Pham <nphamcs@gmail.com> Cc: Chengming Zhou <chengming.zhou@linux.dev> Cc: Johannes Weiner <hannes@cmpxchg.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> |
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Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the reStructuredText markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.