benchmark

Benchmarks

This page includes some benchmarks run against the current version of Voctopus. They're useful as a way to measure the impact of code changes. A brief description of each test suite follows.

Init Tests

These benchmarks cover certain maintenance operations:

• Create: the time it takes to instantiate a new Voctopus
• Expand: how long it takes to expand a buffer to maximum size
• Init: the total time to initialize every voxel in the octree to full depth
• Walk: the total time to walk to each voxel in the tree

R/W Tests

These tests measure how long reads and writes take using different interfaces. The octree is expanded to full size so that expansions won't interrupt r/w.

• Object: how long it takes to read/write using the getVoxel and setVoxel methods
• Direct: time to read/write using the direct getter/setter methods (Voc.set[field])
• Octet: time to read/write using the octet batch write (Voc.set[field])

Memory Tests

These tests measure r/w speeds without expansion, and how much memory is consumed by Voctopus' on-demand buffer expansion. The direct-write interfaces are used here.

BEGIN BENCHMARK

Initialization Tests

Depth	3	4	5	6	7	8
Create	0.000s	0.000s	0.000s	0.000s	0.000s	0.000s
Expand	0.001s	0.000s	0.000s	0.007s	0.045s	0.296s
Init	0.002s	0.003s	0.007s	0.021s	0.140s	1.217s
Walk	0.001s	0.002s	0.004s	0.012s	0.074s	0.798s

R/W Tests Depth 8

Type	Read	Write	R/s	W/s	Dims	Voxels
voxel	4.810s	4.780s	3487987	3509878	256^3	16777216
direct	7.439s	6.345s	2255305	2644163	256^3	16777216
octet	2.362s	1.590s	7102970	10551708	256^3	16777216

Memory Tests

Depth	Dims	Read	Write	Voxels	Octets	Memory
5	32^3	0.009s	0.010s	32768	137	0.063MB
6	64^3	0.069s	0.091s	262144	11611	0.063MB
7	128^3	0.897s	1.321s	2097152	117403	0.500MB
8	256^3	7.468s	19.394s	16777216	1136611	4.000MB