mirror of
https://github.com/torvalds/linux.git
synced 2026-03-08 03:44:45 +01:00
Linux kernel source tree
84c1da7b38
Always prefer the avx2 implementation if its available.
This greatly improves insertion performance (each insertion
checks if the new element would overlap with an existing one):
time nft -f - <<EOF
table ip pipapo {
set s {
typeof ip saddr . tcp dport
flags interval
size 800000
elements = { 10.1.1.1 - 10.1.1.4 . 3996,
[.. 800k entries elided .. ]
before:
real 1m55.993s
user 0m2.505s
sys 1m53.296s
after:
real 0m42.586s
user 0m2.554s
sys 0m39.811s
Fold patch from Sebastian:
kernel_fpu_begin_mask()/ _end() remains in pipapo_get_avx2() where it is
required.
A followup patch will add local_lock_t to struct nft_pipapo_scratch in
order to protect the map pointer. The lock can not be acquired in
preemption disabled context which is what kernel_fpu_begin*() does.
Link: https://lore.kernel.org/netfilter-devel/20250818110213.1319982-2-bigeasy@linutronix.de/
Co-developed-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Florian Westphal <fw@strlen.de>
|
||
|---|---|---|
| arch | ||
| block | ||
| certs | ||
| crypto | ||
| Documentation | ||
| drivers | ||
| fs | ||
| include | ||
| init | ||
| io_uring | ||
| ipc | ||
| kernel | ||
| lib | ||
| LICENSES | ||
| mm | ||
| net | ||
| rust | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .clang-format | ||
| .clippy.toml | ||
| .cocciconfig | ||
| .editorconfig | ||
| .get_maintainer.ignore | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| .pylintrc | ||
| .rustfmt.toml | ||
| COPYING | ||
| CREDITS | ||
| Kbuild | ||
| Kconfig | ||
| MAINTAINERS | ||
| Makefile | ||
| 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 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.