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Printing unicode characters is about 20x slower than usual characters #15625
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Before I debug this, could you try and see if it improves if you enable "AtlasEngine" in the "Rendering" settings? After enabling it you'll have to restart the application or create new tabs. |
You can still try this, but this isn't "non-BMP unicode" so it is less likely to be impacted by the TextBuffer changes! |
I didn't know such parameters existed. It improves performance a lot. Here are the results :
The "Use software rendering" option also improves performance (but Unicode is still a little slower):
|
I've tried it and it's just as fast as "AtlasEngine". |
Hi! We've identified this issue as a duplicate of another one that already exists on this Issue Tracker. This specific instance is being closed in favor of tracking the concern over on the referenced thread. Thanks for your report! |
Windows Terminal version
1.17.11461.0
Windows build number
10.0.22621.1848
Other Software
Steps to reproduce
Print unicode characters to the console. Eg:
U+2593 DARK SHADE
Here are benchmark results from C# application listed above.
Windows 11 Terminal (Ryzen 5700x / 1080TI GPU) :
Windows 10 command line (slower computer) :
Expected Behavior
Rendering is just as fast as other characters
Actual Behavior
Rendering is very slow (it looks like it freeze temporarily when printing such characters).
Even after printing unicode characters, scrolling the area where they appear is slow.
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