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samples: bpf: Driver interrupt statistics in xdpsock
Add an option to count the number of interrupts generated per second and total number of interrupts during the lifetime of the application for a given interface. This information is extracted from /proc/interrupts. Since there is no naming convention across drivers, the user must provide the string which is specific to their interface in the /proc/interrupts file on the command line. Usage: ./xdpsock ... -I <irq_str> eg. for queue 0 of i40e device eth0: ./xdpsock ... -I i40e-eth0-TxRx-0 Signed-off-by: Ciara Loftus <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
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