Much better than what we have now, should go in.

Fix tests, adjust the css its looking for to the max-width value

Split up into separate diffs:
D17027
D17075
D17117
D17121

@bot build-tsan

add missing lock annotation

rebase

rebase

remove comment (x52), include new test from D17113

please include the mining_getblocktemplate_longpoll.py from D17113

add more tests (mostly abc*). Note that the new way of setting the option is persistent accross node restarts. abc_p2p_avalanche_proof_voting is an example that fails if we set this attribute, because it needs to restart without the noban permission in one of the subtests.

feedback

In D17110#388296, @Fabien wrote:

The commits are not the correct ones

You should go through the abc tests also. I use this a lot to speed up proof relay in tests

interface_rest.py | ✓ Passed | 21 s

The commits are not the correct ones

I'm not able to reproduce the failure in 100 runs of the test , but I noticed that the test duration variability is wild, with values ranging from 6s to 41s.
I will backport 27114 to hopefully speed this up.

lock issue or lock annotation issue to be investigated

functional test failure to be investigated