Making the LinkedIn experimentation engine 20x faster

• performancepaper

  5 59 0.0 Clojure

  A reproducible, open examination of the paper "A performance comparison of Clojure and Java" by Gustav Krantz

I did a contrast with someone's graduate thesis that aimed to analyze clojure vs. java performance and made some weak claims. The rep is here, and it's really the org file. Sort of a worked example of optimizing code.

• clj-fast

  5 230 0.0 Clojure

  Unpredictably faster Clojure

Some interesting exploration in the clj-fast library and discussions in the issues there.

• InfluxDB

  www.influxdata.com featured

  Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.

  

• ultrarand

  2 4 5.0 Clojure

  a demo of random number generation in java, and clojure via performance optimization

There's a pretty interesting discussion on primitive arrays where the user is trying to match java performance exactly with an array-based thing that's simple enough to port, but is still a hair off due to clojure's default toward longs even for indexing (java wants int for array indices, so casts are necessary). Ended up getting identical performance using JiSE here, although the clojure variant with uncheckedIntCasts was fairly close (just not "equivalent to Java" per the common trope).

• icfpc2019

  2 17 0.0 Clojure

There's a worked example of optimizing an ICFPC2019 entry here where the readme goes through a bevy of techniques and observations.

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