ad25cfb6b8
By default Linux will default to most IRQ-s being mapped to core 0 which during high loads will completely swamp the core 0, so lets add the widely used script that has been floating around forums for a long time to try and optimize the IRQ mapping a bit. Signed-off-by: Robert Marko <robimarko@gmail.com>
36 lines
996 B
Bash
Executable file
36 lines
996 B
Bash
Executable file
#!/bin/sh /etc/rc.common
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START=93
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enable_affinity_ipq807x() {
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set_affinity() {
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irq=$(awk "/$1/{ print substr(\$1, 1, length(\$1)-1); exit }" /proc/interrupts)
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[ -n "$irq" ] && echo $2 > /proc/irq/$irq/smp_affinity
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}
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# assign 4 rx interrupts to each core
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set_affinity 'reo2host-destination-ring1' 1
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set_affinity 'reo2host-destination-ring2' 2
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set_affinity 'reo2host-destination-ring3' 4
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set_affinity 'reo2host-destination-ring4' 8
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# assign 3 tcl completions to last 3 CPUs
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set_affinity 'wbm2host-tx-completions-ring1' 2
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set_affinity 'wbm2host-tx-completions-ring2' 4
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set_affinity 'wbm2host-tx-completions-ring3' 8
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# assign 3 ppdu mac interrupts to last 3 cores
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set_affinity 'ppdu-end-interrupts-mac1' 2
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set_affinity 'ppdu-end-interrupts-mac2' 4
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set_affinity 'ppdu-end-interrupts-mac3' 8
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# assign lan/wan to core 4
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set_affinity 'edma_txcmpl' 8
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set_affinity 'edma_rxfill' 8
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set_affinity 'edma_rxdesc' 8
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set_affinity 'edma_misc' 8
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}
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boot() {
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enable_affinity_ipq807x
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}
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