Use the GODEBUG env var to disable Transparent Huge Pages #463
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pritesh-lahoti
approved these changes
Feb 28, 2025
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| {{- define "godebugList" -}} | ||
| {{- $godebugList := list -}} | ||
| {{- range $key, $value := .Values.godebug }} | ||
| {{- $godebugList = append $godebugList (printf "%s=%s" $key $value) -}} | ||
| {{- end }} | ||
| {{- join "," $godebugList -}} | ||
| {{- end }} |
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This could move to cockroachdb/templates/_helpers.tpl.
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THP is unhelpful for databases, in general, because memory access tends to be non-contiguous, and the use of THP can make performance worse when it requires a bunch of page defragmentation to load and map a huge page.
We disable it by default, using the GODEBUG environment variable.
Adds a generic facility for managing GODEBUG clauses to the Helm chart.
closes https://cockroachlabs.atlassian.net/browse/TREQ-888