Add test of performance of `eddy_graph`

Overlap/Tests/long_tests.json

@@ -5,5 +5,16 @@
 	"env": {"mpiexec": "$mpiexec"},
         "command":
 	["$build_dir/Overlap/eddy_graph.sh", "1", "$PWD/Inst_eddies_5_anti"]
+    },
+    {
+        "input": "&MAIN_NML max_delta = 4 /\n",
+        "title": "EGg_1993",
+	"env": {"mpiexec": "$mpiexec"},
+	"description": "Global domain, one year, for performance tests",
+        "command":
+	[
+	    "$build_dir/Overlap/eddy_graph.sh", "1",
+	    "$large_input_dir/SHPC_anti_1993"
+	]
     }
 ]