netdev_budget

file: /proc/sys/net/core/netdev_budget
variable: net.core.netdev_budget
Official reference

Maximum number of packets taken from all interfaces in one polling cycle (NAPI poll). In one polling cycle interfaces which are registered to polling are probed in a round-robin manner. Also, a polling cycle may not exceed netdev_budget_usecs microseconds, even if netdev_budget has not been exhausted.

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