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authorLiansen Zhai <zhailiansen@gmail.com>2023-10-12 17:03:30 +0800
committerJakub Kicinski <kuba@kernel.org>2023-10-16 16:36:53 -0700
commitc60991f8e187eb73dbea2375c08ccba8f544bd49 (patch)
treee7fd044bcb45d3edc953b760fab0c61552ae4676 /Documentation/i2c
parent1cfce8261d9cb21303899aa04de1abb25834d3d0 (diff)
cgroup, netclassid: on modifying netclassid in cgroup, only consider the main process.
When modifying netclassid, the command("echo 0x100001 > net_cls.classid") will take more time on many threads of one process, because the process create many fds. for example, one process exists 28000 fds and 60000 threads, echo command will task 45 seconds. Now, we only consider the main process when exec "iterate_fd", and the time is about 52 milliseconds. Signed-off-by: Liansen Zhai <zhailiansen@kuaishou.com> Reviewed-by: Simon Horman <horms@kernel.org> Link: https://lore.kernel.org/r/20231012090330.29636-1-zhailiansen@kuaishou.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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