1 V8 Benchmark Suite 2 ================== 3 4 This is the V8 benchmark suite: A collection of pure JavaScript 5 benchmarks that we have used to tune V8. The licenses for the 6 individual benchmarks are included in the JavaScript files. 7 8 In addition to the benchmarks, the suite consists of the benchmark 9 framework (base.js), which must be loaded before any of the individual 10 benchmark files, and two benchmark runners: An HTML version (run.html) 11 and a standalone JavaScript version (run.js). 12 13 14 Changes From Version 1 To Version 2 15 =================================== 16 17 For version 2 the crypto benchmark was fixed. Previously, the 18 decryption stage was given plaintext as input, which resulted in an 19 error. Now, the decryption stage is given the output of the 20 encryption stage as input. The result is checked against the original 21 plaintext. For this to give the correct results the crypto objects 22 are reset for each iteration of the benchmark. In addition, the size 23 of the plain text has been increased a little and the use of 24 Math.random() and new Date() to build an RNG pool has been removed. 25 26 Other benchmarks were fixed to do elementary verification of the 27 results of their calculations. This is to avoid accidentally 28 obtaining scores that are the result of an incorrect JavaScript engine 29 optimization. 30 31 32 Changes From Version 2 To Version 3 33 =================================== 34 35 Version 3 adds a new benchmark, RegExp. The RegExp benchmark is 36 generated by loading 50 of the most popular pages on the web and 37 logging all regexp operations performed. Each operation is given a 38 weight that is calculated from an estimate of the popularity of the 39 pages where it occurs and the number of times it is executed while 40 loading each page. Finally the literal letters in the data are 41 encoded using ROT13 in a way that does not affect how the regexps 42 match their input. 43 44 45 Changes from Version 3 to Version 4 46 =================================== 47 48 The Splay benchmark is a newcomer in version 4. It manipulates a 49 splay tree by adding and removing data nodes, thus exercising the 50 memory management subsystem of the JavaScript engine. 51 52 Furthermore, all the unused parts of the Prototype library were 53 removed from the RayTrace benchmark. This does not affect the running 54 of the benchmark. 55 56 57 Changes from Version 4 to Version 5 58 =================================== 59 60 Removed duplicate line in random seed code, and changed the name of 61 the Object.prototype.inherits function in the DeltaBlue benchmark to 62 inheritsFrom to avoid name clashes when running in Chromium with 63 extensions enabled. 64 65 66 Changes from Version 5 to Version 6 67 =================================== 68 69 Removed dead code from the RayTrace benchmark and fixed a couple of 70 typos in the DeltaBlue implementation. Changed the Splay benchmark to 71 avoid converting the same numeric key to a string over and over again 72 and to avoid inserting and removing the same element repeatedly thus 73 increasing pressure on the memory subsystem. Changed the RegExp 74 benchmark to exercise the regular expression engine on different 75 input strings. 76 77 Furthermore, the benchmark runner was changed to run the benchmarks 78 for at least a few times to stabilize the reported numbers on slower 79 machines. 80 81 82 Changes from Version 6 to Version 7 83 =================================== 84 85 Added the Navier-Stokes benchmark, a 2D differential equation solver 86 that stresses arithmetic computations on double arrays. 87
