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systemd service for disabling Transparent Huge Pages (THP) for dbs like mongodb and redis
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| [Unit] | |
| Description=Disable Transparent Huge Pages (THP) | |
| DefaultDependencies=no | |
| After=sysinit.target local-fs.target | |
| Before=mongod.service | |
| [Service] | |
| Type=oneshot | |
| ExecStart=/bin/sh -c 'echo never | tee /sys/kernel/mm/transparent_hugepage/enabled > /dev/null' | |
| [Install] | |
| WantedBy=basic.target |
yeah you can checkout this stack overflow discussion for the reasoning https://stackoverflow.com/a/550808
@oscarcarlsson
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Is there any reason you echo into tee and then ignore the output? It seems backward, compared to just echoing (which returns no output).