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| author | Willem de Bruijn <willemb@google.com> | 2017-08-03 23:29:45 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-08-04 07:37:30 +0300 |
| commit | 07b65c5b31ce477c3ced6e3541fd2331338be214 (patch) | |
| tree | a3fa2da0af407268ef4daeb7d7e797df554a2e29 /tools/testing/selftests/net/.gitignore | |
| parent | f214f915e7db99091f1312c48b30928c1e0c90b7 (diff) | |
| download | linux-07b65c5b31ce477c3ced6e3541fd2331338be214.tar.xz | |
test: add msg_zerocopy test
Introduce regression test for msg_zerocopy feature. Send traffic from
one process to another with and without zerocopy.
Evaluate tcp, udp, raw and packet sockets, including variants
- udp: corking and corking with mixed copy/zerocopy calls
- raw: with and without hdrincl
- packet: at both raw and dgram level
Test on both ipv4 and ipv6, optionally with ethtool changes to
disable scatter-gather, tx checksum or tso offload. All of these
can affect zerocopy behavior.
The regression test can be run on a single machine if over a veth
pair. Then skb_orphan_frags_rx must be modified to be identical to
skb_orphan_frags to allow forwarding zerocopy locally.
The msg_zerocopy.sh script will setup the veth pair in network
namespaces and run all tests.
Signed-off-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'tools/testing/selftests/net/.gitignore')
| -rw-r--r-- | tools/testing/selftests/net/.gitignore | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/tools/testing/selftests/net/.gitignore b/tools/testing/selftests/net/.gitignore index afe109e5508a..9801253e4802 100644 --- a/tools/testing/selftests/net/.gitignore +++ b/tools/testing/selftests/net/.gitignore @@ -1,3 +1,4 @@ +msg_zerocopy socket psock_fanout psock_tpacket |