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When we ran the stress-ng cache related stressors, we got the log as below: ubuntu@ubuntu:~$ stress-ng --l1cache 4 stress-ng: info: [656] defaulting to a 86400 second (1 day, 0.00 secs) run per stressor stress-ng: info: [656] dispatching hogs: 4 l1cache stress-ng: info: [657] stress-ng-l1cache: skipping stressor, cannot determine cache level 1 information from kernel This is because the l1 and l2 cache info is missing in the devicetree, ls1028a has dual cortex-a72 cores and has 48KB icache, 32KB dcache and 1MB l2 ucache: - icache is 3-way set associative - dcache is 2-way set associative - l2cache is 16-way set associative - line size are 64bytes Signed-off-by: Hui Wang <hui.wang@canonical.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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 Restructured Text 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.