napoleonwxu / ebpf_map

ebpf_map

This repo is for testing the performance of hash & trie map in ebpf.

build ebpf manually

export CLANG=clang
export CFLAGS="-O2 -g -Wall -Werror -target bpf"
export INCLUDE="./include"
$CLANG $CFLAGS -I$INCLUDE -c ebpf_map.c -o ebpf_map.o
# clang -O2 -g -Wall -Werror -target bpf -I./include -c ebpf_map.c -o ebpf_map.o

attach ebpf manually

tc qdisc add dev <device> clsact
tc filter add dev <device> <direction> bpf da obj <object-name> sec <section-name>
tc filter show dev <device> <direction>

# e.g
tc filter add dev lxc60294565d708 ingress bpf da obj ebpf_map.o sec trie
# tc filter show dev lxc60294565d708 ingress
filter protocol all pref 49152 bpf chain 0 
filter protocol all pref 49152 bpf chain 0 handle 0x1 ebpf_map.o:[trie] direct-action not_in_hw id 6814 tag 704c89c4edcf21bb jited 

test summary

match cnt	hash (Gbps)	lpm_trie (Gbps)
1	21.3	21.0
2	21.4	20.9
3	21.1	21.1
4	21.1	21.1
5	21.1	21.0
6	21.1	21.1
7	21.1	21.0
8	20.8	20.9
9	20.8	21.0
10	20.9	20.9
11	20.8	20.9
12	20.8	20.8
13	20.6	21.0
14	20.5	20.9
15	20.6	21.2
16	20.6	21.0
17	20.6	21.1
18	20.6	20.9
19	20.5	21.3
20	20.4	21.0
21	20.6	21.1
22	20.5	21.1
23	20.4	21.3
24	20.5	20.8
25	20.4	21.1
26	20.2	21.1
27	20.3	20.9
28	20.1	20.9
29	20.2	20.8
30	20.3	20.8
31	20.1	21.0
32	20.3	20.9
33	19.8	20.9