"ratio of equals/hashCode/compareTo operations to build with %s entries versus %s"
                  + " entries",
              largeSize, smallSize)
          .that(ratio)
          .isAtMost(
              2
                  * constructionAsymptotics.applyAsDouble(largeSize)
                  / constructionAsymptotics.applyAsDouble(smallSize));
      // allow up to 2x wobble in the constant factors
    }
  }