mirror of
https://github.com/SCST-project/scst.git
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3e59f81ea5
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6027 d57e44dd-8a1f-0410-8b47-8ef2f437770f
56 lines
1.8 KiB
Awk
Executable File
56 lines
1.8 KiB
Awk
Executable File
#!/bin/awk -f
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BEGIN {
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if (debug != "")
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print "[<node>, <per_node_cpu_idx>]: <cpu>";
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"ls -1d /sys/devices/system/node/node* 2>&1 | wc -l" | getline nodes
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if (nodes > 1) {
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for (i = 0; i < nodes; i++) {
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cpus_per_node = 0
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while (("cd /sys/devices/system/cpu && ls -d cpu*/node" i " | sed 's/^cpu//;s,/.*,,'|sort -n" | getline j) > 0) {
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if (debug != "")
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print "[" i ", " cpus_per_node "]: " j
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cpu[i, cpus_per_node++] = j
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}
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}
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} else {
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cpus_per_node = 0
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while (("cd /sys/devices/system/cpu && ls -d cpu[0-9]* | sed 's/^cpu//'|sort -n" | getline j) > 0) {
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if (debug != "")
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print "[0, " cpus_per_node "]: " j
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cpu[0, cpus_per_node++] = j
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}
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}
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for (i = 0; i < nodes; i++)
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nextcpu[i] = 0
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while (("sed -n 's/.*mlx4-ib-\\([0-9]*\\)-[0-9]*@\\(.*\\)$/\\1 \\2/p' /proc/interrupts | uniq" | getline) > 0) {
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port = $1
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bus = substr($0, length($1) + 2)
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if (debug != "")
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print "HCA port = " port "; bus = " bus
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irqcount = 0
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while (("sed -n 's/^[[:blank:]]*\\([0-9]*\\):[0-9[:blank:]]*[^[:blank:]]*[[:blank:]]*\\(mlx4-ib-" port "-[0-9]*@" bus "\\)$/\\1 \\2/p' </proc/interrupts" | getline) > 0) {
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irq[irqcount] = $1
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irqname[irqcount] = substr($0, length($1) + 2)
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irqcount++
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}
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for (i = 0; i < nodes; i++) {
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ch_start = i * irqcount / nodes
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ch_end = (i + 1) * irqcount / nodes
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for (ch = ch_start; ch < ch_end; ch++) {
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c = cpu[i, nextcpu[i]++ % cpus_per_node]
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if (nodes > 1)
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nodetxt = " (node " i ")"
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else
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nodetxt = ""
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print "IRQ " irq[ch] " (" irqname[ch] "): CPU " c nodetxt
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cmd="echo " c " >/proc/irq/" irq[ch] "/smp_affinity_list"
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if (debug != "")
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print cmd
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system(cmd)
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}
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}
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}
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exit 0
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}
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