benchmark: add benchmark for dns.promises.lookup()
Adding this benchmark will let us check the performance implications of #27081.

Adding this benchmark will let us check the performance implications of #27081.
benchmark: add benchmark for dns.promises.lookup()
Adding this benchmark will let us check the performance implications of nodejs#27081. PR-URL: nodejs#27249 Reviewed-By: Richard Lau <riclau@uk.ibm.com> Reviewed-By: Anna Henningsen <anna@addaleax.net> Reviewed-By: Yongsheng Zhang <zyszys98@gmail.com>
nodejs · Trott · Trott · Trott · Apr 16, 2019 · nodejs-github-bot
diff --git a/benchmark/dns/lookup-promises.js b/benchmark/dns/lookup-promises.js
+        return;
+      }
+      await lookup(name, opts);
+      cb();