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contrib: systemd: set Limit* to infinity
There is a not-insignificant performance overhead for all containers (if
containerd is a child of Docker, which is the current setup) if systemd
sets rlimits on the main Docker daemon process (because the limits
propogate to all children).
Signed-off-by: Aleksa Sarai <asarai@suse.de>
Aleksa Sarai authored on 2016/07/04 22:00:28Showing 1 changed files
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@@ -11,8 +11,10 @@ Type=notify |
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# for containers run by docker |
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ExecStart=/usr/bin/dockerd -H fd:// |
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ExecReload=/bin/kill -s HUP $MAINPID |
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-LimitNOFILE=1048576 |
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-LimitNPROC=1048576 |
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+# Having non-zero Limit*s causes performance problems due to accounting overhead |
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+# in the kernel. We recommend using cgroups to do container-local accounting. |
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+LimitNOFILE=infinity |
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+LimitNPROC=infinity |
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LimitCORE=infinity |
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# Uncomment TasksMax if your systemd version supports it. |
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# Only systemd 226 and above support this version. |