ccb06fba51
Davide Caratti says: ==================== net/sched: act_skbedit: lockless data path the data path of act_skbedit can be faster if we avoid using spinlocks: - patch 1 converts act_skbedit statistics to use per-cpu counters - patch 2 lets act_skbedit use RCU to read/update its configuration test procedure (using pktgen from https://github.com/netoptimizer): # ip link add name eth1 type dummy # ip link set dev eth1 up # tc qdisc add dev eth1 clsact # tc filter add dev eth1 egress matchall action skbedit priority c1a0:c1a0 # for c in 1 2 4 ; do > ./pktgen_bench_xmit_mode_queue_xmit.sh -v -s 64 -t $c -n 5000000 -i eth1 > done test results (avg. pps/thread) $c | before patch | after patch | improvement ----+--------------+--------------+------------ 1 | 3917464 ± 3% | 4000458 ± 3% | irrelevant 2 | 3455367 ± 4% | 3953076 ± 1% | +14% 4 | 2496594 ± 2% | 3801123 ± 3% | +52% v2: rebased on latest net-next ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
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.
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.