perf(endpoints): only allocate endpoint metadata when populated - #6
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perf(endpoints): only allocate endpoint metadata when populated#6christianscott wants to merge 1 commit into
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CreateLBEndpoint allocated a Metadata proto and FilterMetadata map for every endpoint, only to nil them out when Istio auto-mTLS was off or the pod was not Istio-managed. Since this runs once per endpoint per backend and endpoint IR dominates control-plane heap at scale, return nil directly in the no-op cases. No wire-format change: the metadata was already nil after the empty check in those cases. Signed-off-by: Christian Scott <christian@modal.com>
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Reopened against kgateway-dev/kgateway |
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CreateLBEndpoint allocated a Metadata proto and FilterMetadata map for
every endpoint, only to nil them out when Istio auto-mTLS was off or the
pod was not Istio-managed. Since this runs once per endpoint per backend
and endpoint IR dominates control-plane heap at scale, return nil
directly in the no-op cases.
No wire-format change: the metadata was already nil after the empty
check in those cases.
Signed-off-by: Christian Scott christian@modal.com
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