Redmine

https://github.com/minimagick/minimagick/releases/tag/v5.0.0
https://github.com/minimagick/minimagick/releases/tag/v5.0.1

There are some incompatible changes in MiniMagick v5, but it seems to work fine. There was no difference in the output image, size, and processing time.

Below are the results of PNG images of Gantt charts output by MiniMagick v4 and v5, their sizes, and request processing times.

ImageMagick v6¶

$ convert --version
Version: ImageMagick 6.9.11-60 Q16 x86_64 2021-01-25 https://imagemagick.org
Copyright: (C) 1999-2021 ImageMagick Studio LLC

MiniMagick v4¶

ecookbook-gantt-v4-im6.png (66KB)

Sent data ecookbook-gantt.png (2.9ms)
Completed 200 OK in 2145ms (Views: 2.4ms | ActiveRecord: 14.0ms (43 queries, 3 cached) | GC: 35.5ms)

MiniMagick v5¶

ecookbook-gantt-v5-im6.png (66KB)

Sent data ecookbook-gantt.png (2.0ms)
Completed 200 OK in 2086ms (Views: 1.6ms | ActiveRecord: 14.5ms (43 queries, 3 cached) | GC: 13.2ms)

ImageMagick v7¶

$ magick --version
Version: ImageMagick 7.1.1-38 Q16-HDRI x86_64 22398 https://imagemagick.org
Copyright: (C) 1999 ImageMagick Studio LLC

MiniMagick v4¶

ecookbook-gantt-v4-im7.png (60KB)

Sent data ecookbook-gantt.png (1.5ms)
Completed 200 OK in 1514ms (Views: 1.1ms | ActiveRecord: 14.0ms (43 queries, 3 cached) | GC: 17.4ms)

MiniMagick v5¶

ecookbook-gantt-v5-im7.png (60KB)

Sent data ecookbook-gantt.png (1.4ms)
Completed 200 OK in 1048ms (Views: 1.0ms | ActiveRecord: 13.2ms (43 queries, 3 cached) | GC: 20.4ms)