[question] Replaying command log file is significantly slower in release 3.1.1 compared to 2.11

[DmitryAndreyeff]

Replaying command log file is significantly slower in release 3.1.1 compared to 2.11.

Based on this discussion, attaching files.zip to reproduce the issue.

env details:
Mac OS Sonoma 14.6
Python 3.12.7
Visidata 3.1.1

Please advise.

[midichef]

Okay, I can reproduce some slowness, it takes about 1.6 seconds longer on v3.1.1 vs 2.11.1.

How fast is it when you add -b -i to your replay command: vd -b -i -p sheets.vdj. For me that restores the quick playback that I see in v2.11.1. Does it restore the previous quickness for you?

[DmitryAndreyeff]

Hi @midichef , indeed, these flags make the playback in v3 as fast as it was in v2. Thank you very much!

[midichef]

Okay, then I know what caused the change. We should be able to figure out a fix for the slowness, so you won't need to do -b -i in the future. (And -b -i has some definite drawbacks, like not being able to see data on-screen during loading, which could be a long time for a slow sheet.)

[DmitryAndreyeff]

@midichef , actually -b flag breaks completely the ability to edit cells.

[midichef]

Thanks @DmitryAndreyeff for reporting that. I have created an issue #2639 for that problem.

For now, I would recommend applying the fix in #2635, which is this commit: 87c99f2. It will let you avoid using -b -i. It will allow edit-cell to work as usual. It will remove some of the visible delay in your replays, though not all of it.