No description
Find a file
Florian Westphal e7942d0633 tcp: remove prequeue support
prequeue is a tcp receive optimization that moves part of rx processing
from bh to process context.

This only works if the socket being processed belongs to a process that
is blocked in recv on that socket.

In practice, this doesn't happen anymore that often because nowadays
servers tend to use an event driven (epoll) model.

Even normal client applications (web browsers) commonly use many tcp
connections in parallel.

This has measureable impact only in netperf (which uses plain recv and
thus allows prequeue use) from host to locally running vm (~4%), however,
there were no changes when using netperf between two physical hosts with
ixgbe interfaces.

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-07-31 14:37:49 -07:00
arch x86: mark kprobe templates as character arrays, not single characters 2017-07-20 11:34:47 -07:00
block
certs modsign: add markers to endif-statements in certs/Makefile 2017-07-14 11:01:37 +10:00
crypto Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2017-07-14 22:49:50 -07:00
Documentation Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-07-21 03:38:43 +01:00
drivers net: fec: Allow reception of frames bigger than 1522 bytes 2017-07-30 19:26:01 -07:00
firmware
fs rxrpc: Move the packet.h include file into net/rxrpc/ 2017-07-21 11:00:20 +01:00
include tcp: remove prequeue support 2017-07-31 14:37:49 -07:00
init
ipc
kernel bpf: dev_map_alloc() shouldn't return NULL 2017-07-24 16:23:05 -07:00
lib net netlink: Add new type NLA_BITFIELD32 2017-07-30 19:28:08 -07:00
mm Merge branch 'work.mount' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2017-07-15 12:00:42 -07:00
net tcp: remove prequeue support 2017-07-31 14:37:49 -07:00
samples Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-07-21 03:38:43 +01:00
scripts Kbuild updates for v4.13 (2nd) 2017-07-13 13:37:57 -07:00
security Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-07-21 03:38:43 +01:00
sound sound fixes for 4.13-rc1 2017-07-14 12:44:00 -07:00
tools bpf: testing: fix devmap tests 2017-07-29 14:13:20 -07:00
usr
virt Second batch of KVM updates for v4.13 2017-07-15 10:18:16 -07:00
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS libnvdimm for 4.13-rc2 2017-07-20 10:17:53 -07:00
Makefile Linux v4.13-rc1 2017-07-15 15:22:10 -07:00
README

Linux kernel
============

This file was moved to Documentation/admin-guide/README.rst

Please notice that there are several guides for kernel developers and users.
These guides can be rendered in a number of formats, like HTML and PDF.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
See Documentation/00-INDEX for a list of what is contained in each file.

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.