# Consensus Cleanup: demo of slow blocks on Signet

**URL:** <https://delvingbitcoin.org/t/consensus-cleanup-demo-of-slow-blocks-on-signet/2367>\
**Category:** Protocol Design\
**Tags:** softfork\
**Created:** [April 2, 2026, 6:49pm UTC](https://delvingbitcoin.org/t/consensus-cleanup-demo-of-slow-blocks-on-signet/2367 "2026-04-02T18:49:48Z")\
**Posts on this page:** 1\
**Showing post:** 5

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**Author:** ![ajtowns](https://delvingbitcoin.org/user_avatar/delvingbitcoin.org/ajtowns/32/417_2.png) [@ajtowns](https://delvingbitcoin.org/u/ajtowns)\
**Post date:** [April 3, 2026, 6:08pm UTC](https://delvingbitcoin.org/t/consensus-cleanup-demo-of-slow-blocks-on-signet/2367/5 "2026-04-03T18:08:34Z")

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> [@shinobi](#):
>
> a basic GUI/display to pull from the logs and display to a user validation times as the blocks come in.

Here’s a patch for bitcoin-tui that people might find interesting to try:

> <https://github.com/janb84/bitcoin-tui/pull/25>
>
> Probably not desirable to merge.
> 
> Adds a tab for \[monitoring slow blocks on si…gnet\](https://delvingbitcoin.org/t/consensus-cleanup-demo-of-slow-blocks-on-signet/2367) -- displays recent blocks, when we saw the header, when we saw the block, whether it was a compact block, how long it took to validate, and if they're on a different chain than the active chain. Also tails the last few lines of the debug.log.
> 
> \<img width="1074" height="715" alt="tui-slow-blocks" src="https://github.com/user-attachments/assets/27319c1f-e53e-48a2-b0fc-112bd663aab6" /\>

This is what a 5-block reorg looks like in it (without any of the blocks being slow):

 ![tui-slow-blocks](https://delvingbitcoin.org/uploads/default/original/2X/b/b4aa7b8237aa18e0cc5be06faa4d8f697f9674ab.png)

Enabling `-debug=cmpctblock` and `-debug=bench` logging are good and not very expensive and are required to fill out some of the columns; enabling `-debug=net` logging as well might also gather some interesting info.

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_[View the full topic](https://delvingbitcoin.org/t/consensus-cleanup-demo-of-slow-blocks-on-signet/2367)._