Stress-testing OpenStack Neutron revealed poor performance of 'ip netns' when dealing with a high amount of namespaces. The cause of this lies in the combination of how iproute2 mounts NETNS_RUN_DIR and the netns files therein and the fact that systemd makes all mount points of the system shared.
Changes since v1: - Added Suggested-by tag to patches. Phil Sutter (2): ipnetns: Move NETNS_RUN_DIR into it's own propagation group ipnetns: Make netns mount points private ip/ipnetns.c | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) -- 2.8.2
