pypy performance regression with fastavro https://bugs.pypy.org/issue1770

benchmark.sh

#!/bin/bash
set -eu

VENV_DIR=/tmp/fastavro-venv

function cleanup() {
    rm -rf "$VENV_DIR"
}

function benchmark() {
    $VENV_DIR/bin/pip install -q fastavro
    time $VENV_DIR/bin/fastavro uuids.avro > /dev/null
    cleanup
}

cleanup
echo Python 2.7
virtualenv -q $VENV_DIR
benchmark


for pypy in {1.8,1.9,2.0.2,2.1,2.2,2.3}
do
    echo
    echo PyPy $pypy
    virtualenv -q -p ~/Downloads/pypy-$pypy/bin/pypy $VENV_DIR
    benchmark
done

results.txt

Python 2.7

real	0m1.137s
user	0m1.102s
sys	0m0.029s

PyPy 1.8

real	0m1.286s
user	0m1.220s
sys	0m0.060s

PyPy 1.9

real	0m8.409s
user	0m8.297s
sys	0m0.088s

PyPy 2.0.2

real	0m7.865s
user	0m7.733s
sys	0m0.063s

PyPy 2.1

real	0m7.725s
user	0m7.596s
sys	0m0.067s

PyPy 2.2

real	0m8.041s
user	0m7.956s
sys	0m0.071s

PyPy 2.3

real	0m8.253s
user	0m8.144s
sys	0m0.069s

tweet.avsc

{
  "type" : "record",
  "name" : "twitter_schema",
  "namespace" : "com.miguno.avro",
  "fields" : [ {
    "name" : "username",
    "type" : "string",
    "doc" : "Name of the user account on Twitter.com"
  }, {
    "name" : "tweet",
    "type" : "string",
    "doc" : "The content of the user's Twitter message"
  }, {
    "name" : "timestamp",
    "type" : "long",
    "doc" : "Unix epoch time in seconds"
  } ],
  "doc:" : "A basic schema for storing Twitter messages"
}

uuids.avro

uuids.json