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This topic has been translated from a Chinese forum by GPT and might contain errors.Original topic: tidb 集群绑核后，启动命令没有看到numactl，如何知道tidb进程也没有绑核
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username: Raymond
How can I determine if a process is bound to a specific NUMA node using a Linux command, given that I set the numa_node parameter for the corresponding component through tiup cluster edit-config, but did not find the numactl ----cpunodebind parameter in the startup command?
NUMA is a Linux kernel command that needs to be handled using Linux OS tools.
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username: numactl --show View binding information
Refer to this:
If the system hasn’t installed numactl yet, you can install it first as described in the documentation.
After setting the numa_node parameter, numactl will be added to the run_xxx.sh script in the component deployment directory. However, you won’t be able to see numactl in the running command when checking with ps.
If your command line can run numactl, it will help with binding the core machine. You can restart the machine separately to take effect.
service tidb-4000 restart
This question was answered incorrectly. Generally, the core binding is for TiKV.
service tikv-21060 restart
I checked, the command to bind the core is in the startup script of the corresponding component, but it just doesn’t show up in ps -ef.
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