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e29a8e0537
The calling of netns_map_init() before command parsing introduced a performance issue with large number of namespaces. As commands such as add, del and exec do not need to iterate through /var/run/netns it would be good not no build the cache before executing these commands. Example: unpatched: time seq 1 1000 | xargs -n 1 ip netns add real 0m16.832s user 0m1.350s sys 0m15.029s patched: time seq 1 1000 | xargs -n 1 ip netns add real 0m3.859s user 0m0.132s sys 0m3.205s Signed-off-by: Anton Aksola <aakso@iki.fi> Acked-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> |
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