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ctx performance monitoring

This page contains performance statistics on pixel formats relative to each other and ctx relative to Blend2D, cairo and Qt. Numbers/bars are time elapsed for the benchmarks, smaller is better.

Last updated: 2022-03-17

Pixel formats

This shows performance for doing color fills of circles without and with alpha==1.0. The native formats of ctx, BGRA8, GRAYA8 GRAYAF RGBAF and CMYKAF are performing well, for some others like RGB565 shortcuts have been added to increase performance.

And the same on an RPI 3, with -march=armv7 -mfpu=neon-vfpv4 -O2 -ftree-vectorize

And the same on an RPI 3, with -march=armv7 -O2 -ftree-vectorize

RGBA8 time trials, ctx vs Blend2D vs cairo vs Qt

The data for the RGBA8 time-trial benchmark is a blend2d-bench dataset - that also can be visualized in more detail Blend2D's performance comparison page by using the custom dataset functionality.

Blend2D and ctx are built from sources, while Qt and cairo are using system packages from debian sid.

	🥇	🥈	🥉
Blend2D	130	13	6
ctx	13	85	35
Qt	4	36	55
cairo	3	16	54
clangtx

The medal summary provides the overall data from this large dataset at a glance. In the following summary we group the tests by how ctx is performing.

Heats won by ctx:

ctx in second place

ctx in third place

ctx last