mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-28 07:04:00 +08:00
f74599f7c5
Adds a series of tests to verify the functionality of attaching
BPF programs at LWT hooks.
Also adds a sample which collects a histogram of packet sizes which
pass through an LWT hook.
$ ./lwt_len_hist.sh
Starting netserver with host 'IN(6)ADDR_ANY' port '12865' and family AF_UNSPEC
MIGRATED TCP STREAM TEST from 0.0.0.0 (0.0.0.0) port 0 AF_INET to 192.168.253.2 () port 0 AF_INET : demo
Recv Send Send
Socket Socket Message Elapsed
Size Size Size Time Throughput
bytes bytes bytes secs. 10^6bits/sec
87380 16384 16384 10.00 39857.69
1 -> 1 : 0 | |
2 -> 3 : 0 | |
4 -> 7 : 0 | |
8 -> 15 : 0 | |
16 -> 31 : 0 | |
32 -> 63 : 22 | |
64 -> 127 : 98 | |
128 -> 255 : 213 | |
256 -> 511 : 1444251 |******** |
512 -> 1023 : 660610 |*** |
1024 -> 2047 : 535241 |** |
2048 -> 4095 : 19 | |
4096 -> 8191 : 180 | |
8192 -> 16383 : 5578023 |************************************* |
16384 -> 32767 : 632099 |*** |
32768 -> 65535 : 6575 | |
Signed-off-by: Thomas Graf <tgraf@suug.ch>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
38 lines
921 B
Bash
38 lines
921 B
Bash
#!/bin/bash
|
|
|
|
NS1=lwt_ns1
|
|
VETH0=tst_lwt1a
|
|
VETH1=tst_lwt1b
|
|
|
|
TRACE_ROOT=/sys/kernel/debug/tracing
|
|
|
|
function cleanup {
|
|
ip route del 192.168.253.2/32 dev $VETH0 2> /dev/null
|
|
ip link del $VETH0 2> /dev/null
|
|
ip link del $VETH1 2> /dev/null
|
|
ip netns exec $NS1 killall netserver
|
|
ip netns delete $NS1 2> /dev/null
|
|
}
|
|
|
|
cleanup
|
|
|
|
ip netns add $NS1
|
|
ip link add $VETH0 type veth peer name $VETH1
|
|
ip link set dev $VETH0 up
|
|
ip addr add 192.168.253.1/24 dev $VETH0
|
|
ip link set $VETH1 netns $NS1
|
|
ip netns exec $NS1 ip link set dev $VETH1 up
|
|
ip netns exec $NS1 ip addr add 192.168.253.2/24 dev $VETH1
|
|
ip netns exec $NS1 netserver
|
|
|
|
echo 1 > ${TRACE_ROOT}/tracing_on
|
|
cp /dev/null ${TRACE_ROOT}/trace
|
|
ip route add 192.168.253.2/32 encap bpf out obj lwt_len_hist_kern.o section len_hist dev $VETH0
|
|
netperf -H 192.168.253.2 -t TCP_STREAM
|
|
cat ${TRACE_ROOT}/trace | grep -v '^#'
|
|
./lwt_len_hist
|
|
cleanup
|
|
echo 0 > ${TRACE_ROOT}/tracing_on
|
|
|
|
exit 0
|