dcapwell commented on code in PR #4220:
URL: https://github.com/apache/cassandra/pull/4220#discussion_r2205932668


##########
test/simulator/main/org/apache/cassandra/simulator/systems/SimulatedTime.java:
##########
@@ -274,7 +274,7 @@ public long nanoTime()
                 nextDrift = nanosDriftSupplier.get(random);
                 from = global;
                 to = global + Math.max(baseDrift, nextDrift);
-                diffPerGlobal = (nextDrift - baseDrift) / (double)(to - from);
+                diffPerGlobal = to == from ? 1 : (nextDrift - baseDrift) / 
(double)(to - from);

Review Comment:
   when i monkeyed with controlling time i hit this case... i wanted to test 
the case where the full test ran unrealistically fast (each operation only took 
1ns)... 



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