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Breno Leitao says: ==================== net: dqs: optimize if stall threshold is not set Here are four patches aimed at enhancing the Dynamic Queue Limit (DQL) subsystem within the networking stack. The first two commits involve code refactoring, while the third patch introduces the actual change. The fourth patch just improves the cache locality. Typically, when DQL is enabled, stall information is always populated through dql_queue_stall(). However, this information is only necessary if a stall threshold is set, which is stored in struct dql->stall_thrs. Although dql_queue_stall() is relatively inexpensive, it is not entirely free due to memory barriers and similar overheads. To optimize performance, refrain from calling dql_queue_stall() when no stall threshold is set, thus avoiding the processing of unnecessary information. v1: https://lore.kernel.org/all/20240404145939.3601097-1-leitao@debian.org/ ==================== Link: https://lore.kernel.org/r/20240411192241.2498631-1-leitao@debian.org Signed-off-by: Jakub Kicinski <kuba@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 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.