map-vals-clojure-benchmark.txt

Benchmark: transform values of a small map (1000000 iterations)

Avg(ms)   vs best   Code
141.61     1.00      (map-vals-map-iterable data inc)
146.86     1.04      (reduce-kv (fn [m k v] (assoc m k (inc v))) {} data)
156.66     1.11      (reduce-kv (fn [m k v] (assoc m k (inc v))) (empty data) data)
161.20     1.14      (transform MAP-VALS inc data)
211.53     1.49      (persistent! (reduce-kv (fn [m k v] (assoc! m k (inc v))) (transient {}) data))
227.91     1.61      (map-vals-map-iterable-transient data inc)
332.09     2.35      (transform [ALL LAST] inc data)
953.39     6.73      (zipmap (keys data) (map inc (vals data)))
1018.7     7.19      (into {} (for [[k v] data] [k (inc v)]))
1053.5     7.44      (into {} (map (fn [e] [(key e) (inc (val e))]) data))


Benchmark: transform values of large map (1000 iterations)

Avg(ms)   vs best   Code
140.87     1.00      (persistent! (reduce-kv (fn [m k v] (assoc! m k (inc v))) (transient clojure.lang.PersistentHashMap/EMPTY) data))
141.39     1.00      (transform MAP-VALS inc data)
144.26     1.02      (persistent! (reduce-kv (fn [m k v] (assoc! m k (inc v))) (transient {}) data))
177.62     1.26      (reduce-kv (fn [m k v] (assoc m k (inc v))) (empty data) data)
185.75     1.32      (reduce-kv (fn [m k v] (assoc m k (inc v))) {} data)
188.51     1.34      (transform [ALL LAST] inc data)
212.14     1.51      (map-vals-map-iterable-transient data inc)
254.10     1.80      (map-vals-map-iterable data inc)
321.05     2.28      (into {} (for [[k v] data] [k (inc v)]))
338.41     2.40      (into {} (map (fn [e] [(key e) (inc (val e))]) data))
420.10     2.98      (zipmap (keys data) (map inc (vals data)))