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MVT Benchmark

Benchmark for MVT vector tile creation and delivery from a PostGIS database.

The benchmark uses a minimal subset of the NaturalEarth 4.1 data set.

Measurement targets:

  • How long does it take to generate all tiles (single node / multiple nodes)
  • How many requests/s does the tile server deliver in web server mode

Tileset definition

  • Tileset name: ne_countries
  • Maxzoom level for tile data: 6
  • SRS (data and tiles: EPSG:3857 (Web Mercator)

Layer definition:

Name Geom. type Buffer Simplify Table Attributes Conditions
country MULTIPOLYGON 3 yes ne_10m_admin_0_countries adm0_a3, mapcolor7 min_zoom <= {z}
country-name POINT 0 no ne_10m_admin_0_country_points abbrev, name -
geo-lines (z=1..4) MULTILINESTRING 0 no ne_50m_geographic_lines name -
geo-lines (z=5..6) MULTILINESTRING 0 no ne_10m_geographic_lines name -
land-border MULTILINESTRING 0 yes ne_10m_admin_0_boundary_lines_land - min_zoom <= {z}
state MULTILINESTRING 0 yes ne_10m_admin_1_states_provinces_lines adm0_a3 min_zoom <= {z}

Display style

A reference Mapbox GL JS style for the produced tiles is natural-earth-countries.json.

Screenshot:

natural-earth-countries

Run benchmark

Requirements:

  • Make
  • Docker & docker-compose
  • gnuplot

Quick benchmark:

make quick_bench

Full benchmark:

make bench

Graph:

x-www-browser results/benchmark.jpg

Add a new software

  • Copy the skeletion directory to a new directory named after your software
  • Add a configuration for your software to create a tileset following the definition above
  • Adapt the Makefile or add a script to run the benchmarks with your software, using docker containters, if possible
  • Add calls to the project Makefile from the top level Makefile
  • Open a pull request on Github

Reference database

The database can be started within a Docker container with

docker-compose up -d mvtbenchdb

PostgreSQL is running on Port 5432 within Docker and is mapped to 127.0.0.1:5439 on the Docker host.

  • DB user: mvtbench
  • DB password: mvtbench

Connection example:

PGPASSWORD=mvtbench psql -h 127.0.0.1 -p 5439 -U mvtbench

Local DB Setup

# Set Postgresql environment variables when needed: PGHOST, PGPORT, PGUSER, PGPASSWORD
cd data
make createdb

Import GeoPackage with ogr2ogr:

make gpkgrestore