L1 fee throttle

[jfldde]

Description

• L1 fee throttle

Default throttle values :

            (0.0, 1.0),   // No usage
            (0.25, 1.0),  // Below threshold
            (0.5, 1.0),   // At threshold
            (0.6, 1.016), // Above threshold, start increasing fee
            (0.7, 1.256),
            (0.8, 2.296),
            (0.85, 3.40),
            (0.9, 4.0), // Max multiplier hit
            (0.95, 4.0),
            (1.0, 4.0),

No fee increase below 0.5 threshold, then slowly increase towards 0.7 with a 1.25~ multiplier then a sharp increase to the max multiplier of 4.0.

These values were arbitrarily chosen to slowly disincentivize tx in block between 0.5 and 0.7 L1 usage and then sharply increase.
This is configurable via sequencer config https://github.com/chainwayxyz/citrea/pull/1528/files#diff-7fd132bbf4762e829ab08aac6cfc52089b4674fac321c2faf1dc961f9fbc1237

Linked Issues

• Fixes Sequencer DA limit throttling #1357

[codecov]

Codecov Report

Attention: Patch coverage is 64.07407% with 97 lines in your changes missing coverage. Please review.

Project coverage is 76.2%. Comparing base (d7f5037) to head (e58e059).

Files with missing lines	Patch %	Lines
crates/bitcoin-da/src/monitoring.rs	43.9%	46 Missing ⚠️
crates/common/src/config/mod.rs	82.0%	21 Missing ⚠️
crates/bitcoin-da/src/rpc.rs	5.8%	16 Missing ⚠️
crates/bitcoin-da/src/service.rs	33.3%	10 Missing ⚠️
bin/citrea/src/rollup/bitcoin.rs	0.0%	2 Missing ⚠️
bin/citrea/src/rollup/mod.rs	88.8%	1 Missing ⚠️
crates/bitcoin-da/src/fee.rs	96.4%	1 Missing ⚠️

Additional details and impacted files

Files with missing lines	Coverage Δ
bin/citrea/src/rollup/mock.rs	72.4% <ø> (ø)
...ule-system/sov-modules-rollup-blueprint/src/lib.rs	100.0% <ø> (ø)
bin/citrea/src/rollup/mod.rs	75.6% <88.8%> (+0.4%)	⬆️
crates/bitcoin-da/src/fee.rs	58.1% <96.4%> (+9.5%)	⬆️
bin/citrea/src/rollup/bitcoin.rs	0.0% <0.0%> (ø)
crates/bitcoin-da/src/service.rs	72.0% <33.3%> (-0.9%)	⬇️
crates/bitcoin-da/src/rpc.rs	3.0% <5.8%> (+0.5%)	⬆️
crates/common/src/config/mod.rs	92.1% <82.0%> (ø)
crates/bitcoin-da/src/monitoring.rs	41.4% <43.9%> (+0.2%)	⬆️

... and 3 files with indirect coverage changes