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Old 04-29-2022, 10:21 AM   #1
dsyrock
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Default Since 6.54, project that contain too many items runs really slow

https://drive.google.com/file/d/1ges...TMMuwczJtbG3hl

I uploaded a project that contain 37352 empty items. Try opening it, then drag an item quickly. If you are using any version that later then 6.54(including the latest dev), you will see the item is moving much slower than your mouse. There tow ways to fix, delete those empty items, or hide the tracks that contain too many items.

Actually any items(audio, midi, etc) can make a project slow, only if they are more enough.

If you do this in 6.53, it is as smoothe as usual.

Last edited by dsyrock; 04-29-2022 at 10:27 AM.
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Old 04-29-2022, 11:17 AM   #2
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ah yes, an old optimization for many overlapping 1px-wide items was removed, re-adding!
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Old 04-30-2022, 09:57 AM   #3
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Quote:
Originally Posted by Justin View Post
ah yes, an old optimization for many overlapping 1px-wide items was removed, re-adding!
Thank you Justin. But I tested again in the latest dev, still very laggy when draging an item, comparing to doing it in an empty project.


Maybe I'm misunderstanding, but I just placed an empty item(about 4s length), duplicated it again and again, so they are not overlapping and not short items.

Last edited by dsyrock; 04-30-2022 at 10:03 AM.
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Old 05-01-2022, 05:43 AM   #4
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Quote:
Originally Posted by dsyrock View Post
Thank you Justin. But I tested again in the latest dev, still very laggy when draging an item, comparing to doing it in an empty project.
Using +dev0430 and your project above it is very fast here on both Windows and macOS. Perhaps post your reaper.ini, there could be a setting that affects this?

Quote:
Maybe I'm misunderstanding, but I just placed an empty item(about 4s length), duplicated it again and again, so they are not overlapping and not short items.
in screen-space, they are very short (1 pixel) and overlapping
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Old 05-01-2022, 07:00 AM   #5
dsyrock
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Quote:
Originally Posted by Justin View Post
Using +dev0430 and your project above it is very fast here on both Windows and macOS. Perhaps post your reaper.ini, there could be a setting that affects this?



in screen-space, they are very short (1 pixel) and overlapping
Thanks. I uploaded my reaper.ini, please let me know if there is any option affecting this.
Attached Files
File Type: ini reaper.ini (58.3 KB, 8 views)
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Old 05-01-2022, 10:48 AM   #6
Hey Lee
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+1 same problem
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Old 05-01-2022, 12:18 PM   #7
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What color theme are you using? If it's not the 6.0 default, does the behavior change if you switch to the 6.0 default theme, using +dev0430 or later?
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Old 05-01-2022, 07:01 PM   #8
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Quote:
Originally Posted by schwa View Post
What color theme are you using? If it's not the 6.0 default, does the behavior change if you switch to the 6.0 default theme, using +dev0430 or later?
I have tested in the default theme, but it was still laggy.
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