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Paolo Abeni says: ==================== net: introduce rps_default_mask Real-time setups try hard to ensure proper isolation between time critical applications and e.g. network processing performed by the network stack in softirq and RPS is used to move the softirq activity away from the isolated core. If the network configuration is dynamic, with netns and devices routinely created at run-time, enforcing the correct RPS setting on each newly created device allowing to transient bad configuration became complex. Additionally, when multi-queue devices are involved, configuring rps in user-space on each queue easily becomes very expensive, e.g. some setups use veths with per cpu queues. These series try to address the above, introducing a new sysctl knob: rps_default_mask. The new sysctl entry allows configuring a netns-wide RPS mask, to be enforced since receive queue creation time without any fourther per device configuration required. Additionally, a simple self-test is introduced to check the rps_default_mask behavior. ==================== Link: https://lore.kernel.org/r/cover.1675789134.git.pabeni@redhat.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
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| drivers | ||
| fs | ||
| include | ||
| init | ||
| io_uring | ||
| ipc | ||
| kernel | ||
| lib | ||
| LICENSES | ||
| mm | ||
| net | ||
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| samples | ||
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| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .clang-format | ||
| .cocciconfig | ||
| .get_maintainer.ignore | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| .rustfmt.toml | ||
| COPYING | ||
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| README | ||
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.