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nicksherron/disable-transparent-huge-pages.service

Last active January 22, 2024 21:32
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systemd service for disabling Transparent Huge Pages (THP) for dbs like mongodb and redis
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disable-transparent-huge-pages.service
[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
@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).

@nicksherron
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nicksherron commented Aug 3, 2022 •
edited

yeah you can checkout this stack overflow discussion for the reasoning https://stackoverflow.com/a/550808
@oscarcarlsson

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