forked from Minki/linux
mainlining shenanigans
65124bbf98
Use more efficient structure ordering by using the pahole tool and a lot of code inspection to get hot cache lines to have packed data (no holes if possible) and adjacent warm data. ice_ring prior to this change: /* size: 192, cachelines: 3, members: 23 */ /* sum members: 158, holes: 4, sum holes: 12 */ /* padding: 22 */ ice_ring after this change: /* size: 192, cachelines: 3, members: 25 */ /* sum members: 162, holes: 1, sum holes: 1 */ /* padding: 29 */ ice_tx_buf prior to this change: /* size: 48, cachelines: 1, members: 7 */ /* sum members: 38, holes: 2, sum holes: 6 */ /* padding: 4 */ /* last cacheline: 48 bytes */ ice_tx_buf after this change: /* size: 40, cachelines: 1, members: 7 */ /* sum members: 38, holes: 1, sum holes: 2 */ /* last cacheline: 40 bytes */ Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> |
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arch | ||
block | ||
certs | ||
crypto | ||
Documentation | ||
drivers | ||
fs | ||
include | ||
init | ||
ipc | ||
kernel | ||
lib | ||
LICENSES | ||
mm | ||
net | ||
samples | ||
scripts | ||
security | ||
sound | ||
tools | ||
usr | ||
virt | ||
.clang-format | ||
.cocciconfig | ||
.get_maintainer.ignore | ||
.gitattributes | ||
.gitignore | ||
.mailmap | ||
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 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.