9c87378caa
add script to adjust cpu affinity
essedma Time-balanced scheduling:
TX:
CPU: |3 | |2 | |1 | |0 |
TX-Q: |15-14-13-12| |11-10-09-08| |07-06-05-04| |03-02-01-00|
___________| | |
| ______________________| |
| | _________________________________|
| | |
TX-P: |15-11-07-03| |14-10-06-02| |13-09-05-01| |12-08-04-00|
TX-S: |---+--+--+-| |+-----+--+-| |+--+-----+-| |+--+--+----|
| | | |
RX: | | | |
CPU: |3 | | 2 | | 1 | | 0 |
RX-Q: |07-06 | |05-04 | |03-02 | |01-00 |
Signed-off-by: Chen Minqiang <ptpt52@gmail.com>
90 lines
2.3 KiB
Bash
90 lines
2.3 KiB
Bash
#!/bin/sh
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# this scripts is used for adjust cpu's choice of interrupts.
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#
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################################################
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# Adjust smp_affinity of edma
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# Globals:
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# None
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# Arguments:
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# None
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# Returns:
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# None
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# Remark:
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# execute only once on start-up.
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################################################
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adjust_edma_smp_affinity() {
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grep -q edma_eth_ /proc/interrupts || return 0
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local nr=`cat /proc/cpuinfo | grep processor | wc -l`
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local cpu=0
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local tx_irq_num
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for tx_num in `seq 0 1 15` ; do
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cpu=`printf "%x" $((1<<((tx_num/4+0)%nr)))`
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tx_irq_num=`grep -m1 edma_eth_tx$tx_num /proc/interrupts | cut -d ':' -f 1 | tail -n1 | tr -d ' '`
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[ -n "$tx_irq_num" ] && echo $cpu > /proc/irq/$tx_irq_num/smp_affinity
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done
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for rx_num in `seq 0 1 7` ; do
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cpu=`printf "%x" $((1<<((rx_num/2)%nr)))`
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rx_irq_num=`grep -m1 edma_eth_rx$rx_num /proc/interrupts | cut -d ':' -f 1 | tail -n1 | tr -d ' '`
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[ -n "$rx_irq_num" ] && echo $cpu > /proc/irq/$rx_irq_num/smp_affinity
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done
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}
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################################################
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# Adjust smp_affinity of ath10k for 2G and 5G
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# Globals:
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# None
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# Arguments:
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# None
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# Returns:
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# None
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# Remark:
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# execute only once on start-up.
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################################################
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adjust_radio_smp_affinity() {
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local irqs="`grep -E 'ath10k' /proc/interrupts | cut -d ':' -f 1 | tr -d ' '`"
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local nr=`cat /proc/cpuinfo | grep processor | wc -l`
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local idx=2
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for irq in $irqs; do
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cpu=`printf "%x" $((1<<((idx)%nr)))`
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echo $cpu > /proc/irq/$irq/smp_affinity
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idx=$((idx+1))
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done
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}
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################################################
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# Adjust queue of eth
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# Globals:
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# None
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# Arguments:
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# None
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# Returns:
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# None
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# Remark:
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# Each network reboot needs to be executed.
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################################################
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adjust_eth_queue() {
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local nr=`cat /proc/cpuinfo | grep processor | wc -l`
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local idx=0
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for epath in /sys/class/net/eth[0-9]*; do
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test -e $epath || break
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echo $epath | grep -q "\." && continue
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eth=`basename $epath`
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idx=0
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for exps in /sys/class/net/$eth/queues/rx-[0-9]*/rps_cpus; do
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test -e $exps || break
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cpu=`printf "%x" $((1<<((idx+1)%nr)))`
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idx=$((idx+1))
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echo $cpu > $exps
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echo 256 > `dirname $exps`/rps_flow_cnt
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done
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which ethtool >/dev/null 2>&1 && ethtool -K $eth gro off
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done
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echo 1024 > /proc/sys/net/core/rps_sock_flow_entries
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}
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