diff options
| author | Joanne Koong <joannelkoong@gmail.com> | 2022-05-19 17:18:34 -0700 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2022-05-20 18:16:24 -0700 |
| commit | 538aaf9b2383701094a47797b4554c6a21c83eed (patch) | |
| tree | 464be1977af3e8290dd0f519c5c3849299b20c3a /tools/testing/selftests/net/Makefile | |
| parent | d5a42de8bdbe25081f07b801d8b35f4d75a791f4 (diff) | |
selftests: Add test for timing a bind request to a port with a populated bhash entry
This test populates the bhash table for a given port with
MAX_THREADS * MAX_CONNECTIONS sockets, and then times how long
a bind request on the port takes.
When populating the bhash table, we create the sockets and then bind
the sockets to the same address and port (SO_REUSEADDR and SO_REUSEPORT
are set). When timing how long a bind on the port takes, we bind on a
different address without SO_REUSEPORT set. We do not set SO_REUSEPORT
because we are interested in the case where the bind request does not
go through the tb->fastreuseport path, which is fragile (eg
tb->fastreuseport path does not work if binding with a different uid).
To run the test locally, I did:
* ulimit -n 65535000
* ip addr add 2001:0db8:0:f101::1 dev eth0
* ./bind_bhash_test 443
Signed-off-by: Joanne Koong <joannelkoong@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'tools/testing/selftests/net/Makefile')
| -rw-r--r-- | tools/testing/selftests/net/Makefile | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/tools/testing/selftests/net/Makefile b/tools/testing/selftests/net/Makefile index 7ea54af55490..464df13831f2 100644 --- a/tools/testing/selftests/net/Makefile +++ b/tools/testing/selftests/net/Makefile @@ -59,6 +59,7 @@ TEST_GEN_FILES += toeplitz TEST_GEN_FILES += cmsg_sender TEST_GEN_FILES += stress_reuseport_listen TEST_PROGS += test_vxlan_vnifiltering.sh +TEST_GEN_FILES += bind_bhash_test TEST_FILES := settings @@ -69,4 +70,5 @@ include bpf/Makefile $(OUTPUT)/reuseport_bpf_numa: LDLIBS += -lnuma $(OUTPUT)/tcp_mmap: LDLIBS += -lpthread +$(OUTPUT)/bind_bhash_test: LDLIBS += -lpthread $(OUTPUT)/tcp_inq: LDLIBS += -lpthread |