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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)))
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