based on various processors.
Their Gerrit triggers words are of the form "perftest-{node_arch}"
where the node_arch combinations currently supported are:
-2n-clx, 2n-dnv, 2n-tx2, 2n-zn2, 3n-dnv, 3n-tsh.
+2n-clx, 2n-tx2, 2n-zn2, 3n-tsh.
Test selection
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