CSE2410 Fall 2014 Bounce

V8 Benchmark Suite

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This is the V8 benchmark suite: A collection of pure JavaScript

benchmarks that we have used to tune V8. The licenses for the

individual benchmarks are included in the JavaScript files.

In addition to the benchmarks, the suite consists of the benchmark

framework (base.js), which must be loaded before any of the individual

benchmark files, and two benchmark runners: An HTML version (run.html)

and a standalone JavaScript version (run.js).

Changes From Version 1 To Version 2

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For version 2 the crypto benchmark was fixed.  Previously, the

decryption stage was given plaintext as input, which resulted in an

error.  Now, the decryption stage is given the output of the

encryption stage as input.  The result is checked against the original

plaintext.  For this to give the correct results the crypto objects

are reset for each iteration of the benchmark.  In addition, the size

of the plain text has been increased a little and the use of

Math.random() and new Date() to build an RNG pool has been removed.

Other benchmarks were fixed to do elementary verification of the

results of their calculations.  This is to avoid accidentally

obtaining scores that are the result of an incorrect JavaScript engine

optimization.

Changes From Version 2 To Version 3

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Version 3 adds a new benchmark, RegExp.  The RegExp benchmark is

generated by loading 50 of the most popular pages on the web and

logging all regexp operations performed.  Each operation is given a

weight that is calculated from an estimate of the popularity of the

pages where it occurs and the number of times it is executed while

loading each page.  Finally the literal letters in the data are

encoded using ROT13 in a way that does not affect how the regexps

match their input.