zuyu/disable-node-1-cores

Created February 19, 2018 18:12

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Revisions

zuyu created this gist Feb 19, 2018.

disable-node-1-cores

-Original file line number
+Diff line change
@@ -0,0 +1,10 @@
+    #!/bin/bash
+    typeset -i state
+    for i in /sys/devices/system/cpu/cpu[0-9]*; do
+      if [ -d ${i}/node1 ]; then
+        state="$(<${i}/online)"
+        echo -n "$((1-state))" > "${i}/online"
+        echo "switched ${i}/online to $((1-state))"
+      fi
+    done