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Jesper Dangaard Brouer f53b5670a5 AF_XDP-interaction: Adjust for inaccuracy of clock_nanosleep

Measurements show that on test systems, clock_nanosleep fairly
consistently wakeup later (or after) the requested sleep time.

It is fairly trivial to simply adjust the sleep/wakeup time
with the measure inaccuracy of clock_nanosleep, and "ask"
clock_nanosleep to wakeup a bit earlier.

Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>

2022-01-07 17:38:19 +01:00

AF_XDP-interaction

AF_XDP-interaction: Adjust for inaccuracy of clock_nanosleep

2022-01-07 17:38:19 +01:00

bpf-link-hang

bpf-link-hang: Add bpftrace invocation to show hang in synchronize_rcu_tasks

2021-03-23 13:07:36 +01:00

BTF-playground

BTF-playground: Add btf_module_read.c example

2021-09-10 18:16:18 +02:00

dhcp-relay

Add DHCP relay program.

2021-06-21 22:51:57 +02:00

encap-forward

encap-forward: Move setting of the ethertype to the encap_* functions

2020-11-25 11:31:06 +01:00

headers

headers: Update linux/btf.h to contain BTF_KIND_FLOAT

2021-09-10 17:06:58 +02:00

include

xdp/parsing_helpers: Check IP protocol version when parsing

2021-06-18 00:56:08 +02:00

ktrace-CO-RE

ktrace-CO-RE/ktrace01_kern: kprobe changed name to .isra.0

2021-09-10 13:45:42 +02:00

lib

lib/Makefile: Enable compiler warnings to USER_TARGETS_OBJS

2021-10-28 13:51:09 +02:00

lsm-nobpf

lsm-nobpf: Check for presence of BPF LSM before loading

2020-10-12 16:53:24 +02:00

MTU-tests

MTU-tests: BPF-helper did make it upstream and in libbpf

2021-10-26 16:10:57 +02:00

nat64-bpf

nat64: Update README

2021-10-05 00:44:43 +02:00

pping

Merge pull request #16 from simosund/pping_Better_output

2021-06-24 14:28:19 +02:00

preserve-dscp

preserve-dscp: Add a warning about data leakage to the README

2021-06-18 01:30:36 +02:00

tc-basic-classifier

Adding a basic TC eBPF Qdisc classifier example

2021-03-17 02:26:58 +01:00

traffic-pacing-edt

traffic-pacing-edt: Prepare that rate can come from BPF-map

2021-02-09 14:28:45 +01:00

.gitignore

common.mk: support generating skeletons for BPF object files

2021-09-29 01:44:49 +02:00

.gitmodules

.gitmodules: Add ignore=dirty for libbpf

2021-01-13 17:10:20 +01:00

configure

Merge pull request #25 from xdp-project/nat64

2021-10-12 20:24:17 +02:00

Makefile

Makefile: clean target should also call clean for lib directory

2021-01-13 18:09:09 +01:00

README.md

readme: fix typos

2021-11-06 12:33:09 +00:00

README.md

Practical BPF examples

This git repository contains a diverse set of practical BPF examples that solve (or demonstrate) a specific use-case using BPF.

It is meant to ease doing rapid prototyping and development, writing C-code BPF programs using libbpf. The goal is to make it easier for developers to get started coding.

Many developers struggle to get a working BPF build environment. The repo enviroment makes it easy to build/compile BPF programs by doing the necessary libbpf setup transparently and detect missing compile dependencies (via the configure script). It is a declared goal to make BPF programming more consumable by detecting and reporting issues (when possible).