New gas proposal
Worst-case-across-clients gas costs derived from the runtime fits, compared against
the current Osaka cost table. Rendered from the generated proposal report; see the
runtime and glue pages for the
underlying per-fit detail.
Generated 2026-06-15 09:13:09Z · fork osaka · anchor_rate 100 Mgas/s
Summary: 12 parameters proposed — 10 increased, 2 decreased, 0 new, 0 unresolved · 4 warnings · 0 poor-fit selections
Proposed gas parameters
| Gas param | Current gas | Proposed gas | Δ% |
| COLD_STORAGE_ACCESS |
2100 |
2493 |
+19% |
| COLD_STORAGE_WRITE |
5000 |
20778 |
+316% |
| COLD_ACCOUNT_NOCODE_ACCESS |
2600 |
2289 |
-12% |
| COLD_ACCOUNT_CODE_ACCESS |
2600 |
8167 |
+214% |
| COLD_ACCOUNT_NOCODE_WRITE |
9300 |
22130 |
+138% |
| COLD_ACCOUNT_CODE_WRITE |
9300 |
24584 |
+164% |
| WARM_ACCESS |
100 |
51 |
-49% |
| STORAGE_WRITE |
2800 |
18285 |
+553% |
| ACCOUNT_WRITE |
6700 |
19841 |
+196% |
| REFUND_STORAGE_CLEAR |
4800 |
19947 |
+316% |
| TX_ACCESS_LIST_STORAGE_KEY |
1900 |
2493 |
+31% |
| TX_ACCESS_LIST_ADDRESS |
2400 |
8167 |
+240% |
Client comparison
Worst client vs. second-worst client per gas parameter. The Ratio column is worst gas / second-worst gas — values close to 1× mean the worst case sits next to the rest of the field, while large ratios flag the worst client as an outlier.
| Gas param |
Worst client |
Worst gas |
Second-worst client |
Second-worst gas |
Ratio |
| COLD_STORAGE_ACCESS |
ethrex |
2493 |
geth |
2443 |
1.02× |
| COLD_STORAGE_WRITE |
besu |
20778 |
geth |
13123 |
1.58× |
| COLD_ACCOUNT_NOCODE_ACCESS |
geth |
2289 |
ethrex |
1770 |
1.29× |
| COLD_ACCOUNT_CODE_ACCESS |
erigon |
8167 |
besu |
2826 |
2.89× |
| COLD_ACCOUNT_NOCODE_WRITE |
besu |
22130 |
erigon |
13900 |
1.59× |
| COLD_ACCOUNT_CODE_WRITE |
erigon |
24584 |
besu |
22130 |
1.11× |
| WARM_ACCESS |
besu |
51 |
erigon |
51 |
1.00× |
Per-client proposed gas for each parameter. Cells are colored by log2(proposed / current) — red means the proposal is more expensive than the current gas cost, green means cheaper, and white sits at unchanged. Annotations show the absolute proposed gas value; blank rows are parameters with no prior baseline (see warnings below).
| besu | erigon | ethrex | geth | nethermind | reth |
|---|
| COLD_STORAGE_ACCESS | 1,497 | 597 | 2,493 | 2,443 | 797 | 154 |
|---|
| COLD_STORAGE_WRITE | 20,778 | 8,149 | 3,748 | 13,123 | 4,391 | 3,919 |
|---|
| COLD_ACCOUNT_NOCODE_ACCESS | 1,623 | 1,085 | 1,770 | 2,289 | 490 | 131 |
|---|
| COLD_ACCOUNT_CODE_ACCESS | 2,826 | 8,167 | 1,827 | 2,367 | 1,706 | 2,059 |
|---|
| COLD_ACCOUNT_NOCODE_WRITE | 22,130 | 13,900 | 2,483 | 10,069 | 4,979 | 2,595 |
|---|
| COLD_ACCOUNT_CODE_WRITE | 22,130 | 24,584 | 2,570 | 10,069 | 5,175 | 3,485 |
|---|
| WARM_ACCESS | 51 | 51 | 10 | 19 | 39 | 6 |
|---|
Worst-case provenance per gas param
One collapsible block per gas parameter showing every per-client candidate that the worst-case selector saw. Rows are model combos (the source regression's test_name, target_opcode, model_coef_name, and any model_by factors — components constant within a parameter are dropped from the label). Cells carry each candidate's proposed gas; the cell the per-client selector picked is outlined in black. Colors are log2(proposed / current) against that parameter's baseline on a per-parameter symmetric scale.
COLD_STORAGE_ACCESS — 4 combos × 6 clients
| besu | erigon | ethrex | geth | nethermind | reth |
|---|
| test_sload_bloated · SLOAD · slots=False | 836 | 597 | 831 | 2,443 | 285 | 132 |
|---|
| test_sload_bloated · SLOAD · slots=True | 1,462 | 537 | 2,405 | 2,378 | 797 | 154 |
|---|
| test_sstore_bloated · SSTORE · slots=False | 938 | 591 | 895 | 2,431 | 301 | 135 |
|---|
| test_sstore_bloated · SSTORE · slots=True | 1,497 | 530 | 2,493 | 2,333 | 781 | 154 |
|---|
COLD_STORAGE_WRITE — 2 combos × 6 clients
| besu | erigon | ethrex | geth | nethermind | reth |
|---|
| slots=False | 20,778 | 8,149 | 0 | 13,123 | 4,391 | 3,919 |
|---|
| slots=True | 8,179 | 7,441 | 3,748 | 9,315 | 3,498 | 2,326 |
|---|
COLD_ACCOUNT_NOCODE_ACCESS — 13 combos × 6 clients
| Label |
Combo |
M1 |
test_name=test_account_access / target_opcode=BALANCE / model_coef_name=target_coef / param_account_mode=AccountMode.EXISTING_EOA / param_opcode=BALANCE |
M2 |
test_name=test_account_access / target_opcode=BALANCE / model_coef_name=target_coef / param_account_mode=AccountMode.NON_EXISTING_ACCOUNT / param_opcode=BALANCE |
M3 |
test_name=test_account_access / target_opcode=CALL / model_coef_name=target_coef / param_account_mode=AccountMode.EXISTING_EOA / param_opcode=CALL |
M4 |
test_name=test_account_access / target_opcode=CALL / model_coef_name=target_coef / param_account_mode=AccountMode.NON_EXISTING_ACCOUNT / param_opcode=CALL |
M5 |
test_name=test_account_access / target_opcode=CALLCODE / model_coef_name=target_coef / param_account_mode=AccountMode.EXISTING_EOA / param_opcode=CALLCODE |
M6 |
test_name=test_account_access / target_opcode=CALLCODE / model_coef_name=target_coef / param_account_mode=AccountMode.NON_EXISTING_ACCOUNT / param_opcode=CALLCODE |
M7 |
test_name=test_account_access / target_opcode=DELEGATECALL / model_coef_name=target_coef / param_account_mode=AccountMode.EXISTING_EOA / param_opcode=DELEGATECALL |
M8 |
test_name=test_account_access / target_opcode=DELEGATECALL / model_coef_name=target_coef / param_account_mode=AccountMode.NON_EXISTING_ACCOUNT / param_opcode=DELEGATECALL |
M9 |
test_name=test_account_access / target_opcode=EXTCODECOPY / model_coef_name=target_coef / param_account_mode=AccountMode.NON_EXISTING_ACCOUNT / param_opcode=EXTCODECOPY |
M10 |
test_name=test_account_access / target_opcode=EXTCODEHASH / model_coef_name=target_coef / param_account_mode=AccountMode.NON_EXISTING_ACCOUNT / param_opcode=EXTCODEHASH |
M11 |
test_name=test_account_access / target_opcode=EXTCODESIZE / model_coef_name=target_coef / param_account_mode=AccountMode.NON_EXISTING_ACCOUNT / param_opcode=EXTCODESIZE |
M12 |
test_name=test_account_access / target_opcode=STATICCALL / model_coef_name=target_coef / param_account_mode=AccountMode.EXISTING_EOA / param_opcode=STATICCALL |
M13 |
test_name=test_account_access / target_opcode=STATICCALL / model_coef_name=target_coef / param_account_mode=AccountMode.NON_EXISTING_ACCOUNT / param_opcode=STATICCALL |
| besu | erigon | ethrex | geth | nethermind | reth |
|---|
| M1 | 1,237 | 880 | 1,757 | 1,085 | 434 | 124 |
|---|
| M2 | 1,285 | 801 | 272 | 2,168 | 367 | 93 |
|---|
| M3 | 1,578 | 1,018 | 1,770 | 1,080 | 467 | 131 |
|---|
| M4 | 1,623 | 929 | 272 | 2,236 | 391 | 95 |
|---|
| M5 | 1,557 | 906 | 1,765 | 1,103 | 464 | 130 |
|---|
| M6 | 1,519 | 851 | 276 | 2,247 | 406 | 96 |
|---|
| M7 | 1,503 | 898 | 1,766 | 1,106 | 478 | 129 |
|---|
| M8 | 1,474 | 862 | 278 | 2,259 | 446 | 94 |
|---|
| M9 | 34 | 8 | 4 | 35 | 33 | 3 |
|---|
| M10 | 1,310 | 774 | 273 | 2,184 | 402 | 89 |
|---|
| M11 | 1,288 | 784 | 268 | 2,186 | 390 | 90 |
|---|
| M12 | 1,579 | 920 | 1,762 | 1,119 | 490 | 130 |
|---|
| M13 | 1,586 | 1,085 | 275 | 2,289 | 443 | 96 |
|---|
COLD_ACCOUNT_CODE_ACCESS — 16 combos × 6 clients
| Label |
Combo |
M1 |
test_name=test_account_access / target_opcode=BALANCE / model_coef_name=target_coef / param_account_mode=AccountMode.EXISTING_CONTRACT / param_opcode=BALANCE |
M2 |
test_name=test_account_access / target_opcode=BALANCE / model_coef_name=target_coef / param_account_mode=AccountMode.NON_EXISTING_ACCOUNT / param_opcode=BALANCE |
M3 |
test_name=test_account_access / target_opcode=CALL / model_coef_name=target_coef / param_account_mode=AccountMode.EXISTING_CONTRACT / param_opcode=CALL |
M4 |
test_name=test_account_access / target_opcode=CALL / model_coef_name=target_coef / param_account_mode=AccountMode.NON_EXISTING_ACCOUNT / param_opcode=CALL |
M5 |
test_name=test_account_access / target_opcode=CALLCODE / model_coef_name=target_coef / param_account_mode=AccountMode.EXISTING_CONTRACT / param_opcode=CALLCODE |
M6 |
test_name=test_account_access / target_opcode=CALLCODE / model_coef_name=target_coef / param_account_mode=AccountMode.NON_EXISTING_ACCOUNT / param_opcode=CALLCODE |
M7 |
test_name=test_account_access / target_opcode=DELEGATECALL / model_coef_name=target_coef / param_account_mode=AccountMode.EXISTING_CONTRACT / param_opcode=DELEGATECALL |
M8 |
test_name=test_account_access / target_opcode=DELEGATECALL / model_coef_name=target_coef / param_account_mode=AccountMode.NON_EXISTING_ACCOUNT / param_opcode=DELEGATECALL |
M9 |
test_name=test_account_access / target_opcode=EXTCODECOPY / model_coef_name=target_coef / param_account_mode=AccountMode.EXISTING_CONTRACT / param_opcode=EXTCODECOPY |
M10 |
test_name=test_account_access / target_opcode=EXTCODECOPY / model_coef_name=target_coef / param_account_mode=AccountMode.NON_EXISTING_ACCOUNT / param_opcode=EXTCODECOPY |
M11 |
test_name=test_account_access / target_opcode=EXTCODEHASH / model_coef_name=target_coef / param_account_mode=AccountMode.EXISTING_CONTRACT / param_opcode=EXTCODEHASH |
M12 |
test_name=test_account_access / target_opcode=EXTCODEHASH / model_coef_name=target_coef / param_account_mode=AccountMode.NON_EXISTING_ACCOUNT / param_opcode=EXTCODEHASH |
M13 |
test_name=test_account_access / target_opcode=EXTCODESIZE / model_coef_name=target_coef / param_account_mode=AccountMode.EXISTING_CONTRACT / param_opcode=EXTCODESIZE |
M14 |
test_name=test_account_access / target_opcode=EXTCODESIZE / model_coef_name=target_coef / param_account_mode=AccountMode.NON_EXISTING_ACCOUNT / param_opcode=EXTCODESIZE |
M15 |
test_name=test_account_access / target_opcode=STATICCALL / model_coef_name=target_coef / param_account_mode=AccountMode.EXISTING_CONTRACT / param_opcode=STATICCALL |
M16 |
test_name=test_account_access / target_opcode=STATICCALL / model_coef_name=target_coef / param_account_mode=AccountMode.NON_EXISTING_ACCOUNT / param_opcode=STATICCALL |
| besu | erigon | ethrex | geth | nethermind | reth |
|---|
| M1 | 2,563 | 3,427 | 1,807 | 2,328 | 1,510 | 1,912 |
|---|
| M2 | 1,285 | 801 | 272 | 2,168 | 367 | 93 |
|---|
| M3 | 2,753 | 8,167 | 1,827 | 2,364 | 1,706 | 1,897 |
|---|
| M4 | 1,623 | 929 | 272 | 2,236 | 391 | 95 |
|---|
| M5 | 2,790 | 8,142 | 1,824 | 2,322 | 1,524 | 1,821 |
|---|
| M6 | 1,519 | 851 | 276 | 2,247 | 406 | 96 |
|---|
| M7 | 2,826 | 8,142 | 1,824 | 2,367 | 1,545 | 1,999 |
|---|
| M8 | 1,474 | 862 | 278 | 2,259 | 446 | 94 |
|---|
| M9 | 162 | 32 | 22 | 75 | 134 | 12 |
|---|
| M10 | 34 | 8 | 4 | 35 | 33 | 3 |
|---|
| M11 | 2,594 | 3,404 | 1,804 | 2,316 | 1,686 | 1,850 |
|---|
| M12 | 1,310 | 774 | 273 | 2,184 | 402 | 89 |
|---|
| M13 | 2,587 | 8,052 | 1,808 | 2,314 | 1,537 | 1,914 |
|---|
| M14 | 1,288 | 784 | 268 | 2,186 | 390 | 90 |
|---|
| M15 | 2,796 | 8,160 | 1,822 | 2,364 | 1,499 | 2,059 |
|---|
| M16 | 1,586 | 1,085 | 275 | 2,289 | 443 | 96 |
|---|
COLD_ACCOUNT_NOCODE_WRITE — 4 combos × 6 clients
| Label |
Combo |
M1 |
test_name=test_account_access / target_opcode=CALL / model_coef_name=target_coef / param_account_mode=AccountMode.EXISTING_EOA / param_opcode=CALL |
M2 |
test_name=test_account_access / target_opcode=CALL / model_coef_name=target_coef / param_account_mode=AccountMode.NON_EXISTING_ACCOUNT / param_opcode=CALL |
M3 |
test_name=test_account_access / target_opcode=CALLCODE / model_coef_name=target_coef / param_account_mode=AccountMode.EXISTING_EOA / param_opcode=CALLCODE |
M4 |
test_name=test_account_access / target_opcode=CALLCODE / model_coef_name=target_coef / param_account_mode=AccountMode.NON_EXISTING_ACCOUNT / param_opcode=CALLCODE |
| besu | erigon | ethrex | geth | nethermind | reth |
|---|
| M1 | 7,626 | 6,006 | 2,483 | 5,939 | 3,358 | 2,595 |
|---|
| M2 | 22,130 | 13,900 | 1,379 | 10,069 | 4,979 | 2,588 |
|---|
| M3 | 2,343 | 742 | 1,517 | 1,340 | 435 | 174 |
|---|
| M4 | 581 | 193 | 40 | 1,044 | 149 | 32 |
|---|
COLD_ACCOUNT_CODE_WRITE — 4 combos × 6 clients
| Label |
Combo |
M1 |
test_name=test_account_access / target_opcode=CALL / model_coef_name=target_coef / param_account_mode=AccountMode.EXISTING_CONTRACT / param_opcode=CALL |
M2 |
test_name=test_account_access / target_opcode=CALL / model_coef_name=target_coef / param_account_mode=AccountMode.NON_EXISTING_ACCOUNT / param_opcode=CALL |
M3 |
test_name=test_account_access / target_opcode=CALLCODE / model_coef_name=target_coef / param_account_mode=AccountMode.EXISTING_CONTRACT / param_opcode=CALLCODE |
M4 |
test_name=test_account_access / target_opcode=CALLCODE / model_coef_name=target_coef / param_account_mode=AccountMode.NON_EXISTING_ACCOUNT / param_opcode=CALLCODE |
| besu | erigon | ethrex | geth | nethermind | reth |
|---|
| M1 | 8,562 | 24,584 | 2,570 | 9,784 | 5,175 | 3,485 |
|---|
| M2 | 22,130 | 13,900 | 1,379 | 10,069 | 4,979 | 2,588 |
|---|
| M3 | 2,640 | 7,444 | 1,579 | 2,445 | 1,519 | 2,179 |
|---|
| M4 | 581 | 193 | 40 | 1,044 | 149 | 32 |
|---|
WARM_ACCESS — 8 combos × 6 clients
| Label |
Combo |
M1 |
test_name=test_ext_account_query_warm / target_opcode=BALANCE / model_coef_name=target_coef / param_opcode=BALANCE |
M2 |
test_name=test_ext_account_query_warm / target_opcode=CALL / model_coef_name=target_coef / param_opcode=CALL |
M3 |
test_name=test_ext_account_query_warm / target_opcode=CALLCODE / model_coef_name=target_coef / param_opcode=CALLCODE |
M4 |
test_name=test_ext_account_query_warm / target_opcode=DELEGATECALL / model_coef_name=target_coef / param_opcode=DELEGATECALL |
M5 |
test_name=test_ext_account_query_warm / target_opcode=EXTCODEHASH / model_coef_name=target_coef / param_opcode=EXTCODEHASH |
M6 |
test_name=test_ext_account_query_warm / target_opcode=EXTCODESIZE / model_coef_name=target_coef / param_opcode=EXTCODESIZE |
M7 |
test_name=test_ext_account_query_warm / target_opcode=STATICCALL / model_coef_name=target_coef / param_opcode=STATICCALL |
M8 |
test_name=test_storage_sload_same_key_benchmark / target_opcode=SLOAD / model_coef_name=target_coef |
| besu | erigon | ethrex | geth | nethermind | reth |
|---|
| M1 | 12 | 5 | 2 | 3 | 16 | 1 |
|---|
| M2 | 51 | 51 | 10 | 13 | 39 | 6 |
|---|
| M3 | 51 | 27 | 10 | 19 | 23 | 6 |
|---|
| M4 | 48 | 27 | 10 | 16 | 35 | 6 |
|---|
| M5 | 12 | 29 | 2 | 4 | 25 | 2 |
|---|
| M6 | 12 | 5 | 2 | 3 | 19 | 1 |
|---|
| M7 | 46 | 50 | 10 | 19 | 36 | 6 |
|---|
| M8 | 10 | 5 | 3 | 5 | 16 | 1 |
|---|
Warnings
Missing parameters
None.
Incomplete client coverage
None.
Missing glue adjustments
Non-priced opcodes correlated with the target opcount — 1 test affected
The target coefficient was left unadjusted for these. Consider adding them to the glue model or re-designing the test to isolate the target opcode.
| Test name |
Non-priced opcodes |
test_account_access |
CLZ |
Priced glue opcodes with a poor fit — 21 (glue_opcode, client) fits skipped
p_value >= glue_contribution_p_value_threshold (0.05) or rsquared < glue_contribution_rsquared_threshold (0.5) — the contribution of these (glue_opcode, client) fits was skipped when computing the glue adjustment, so the listed gas params carry a target coefficient that is not net of this glue opcode's runtime on the affected clients. See glue_opcodes_autogenerated_report.md for per-fit metrics.
| Glue opcode |
Affected clients |
Affected gas params |
AND |
besu (R²) |
COLD_ACCOUNT_CODE_ACCESS, COLD_ACCOUNT_CODE_WRITE |
CALLDATALOAD |
besu (both), erigon (R²), ethrex (R²), geth (R²), nethermind (R²), reth (R²) |
COLD_ACCOUNT_CODE_ACCESS, COLD_ACCOUNT_CODE_WRITE, COLD_ACCOUNT_NOCODE_ACCESS, COLD_ACCOUNT_NOCODE_WRITE, COLD_STORAGE_ACCESS, COLD_STORAGE_WRITE |
EXP |
erigon (R²), nethermind (both) |
COLD_ACCOUNT_CODE_ACCESS, COLD_ACCOUNT_CODE_WRITE |
GT |
besu (R²) |
COLD_ACCOUNT_CODE_ACCESS, COLD_ACCOUNT_CODE_WRITE, COLD_ACCOUNT_NOCODE_ACCESS, COLD_ACCOUNT_NOCODE_WRITE, COLD_STORAGE_ACCESS |
JUMPDEST |
besu (R²) |
COLD_ACCOUNT_CODE_ACCESS, COLD_ACCOUNT_CODE_WRITE, COLD_ACCOUNT_NOCODE_ACCESS, COLD_ACCOUNT_NOCODE_WRITE, COLD_STORAGE_ACCESS, COLD_STORAGE_WRITE |
JUMPI |
besu (R²) |
COLD_ACCOUNT_CODE_ACCESS, COLD_ACCOUNT_CODE_WRITE, COLD_ACCOUNT_NOCODE_ACCESS, COLD_ACCOUNT_NOCODE_WRITE, COLD_STORAGE_ACCESS, COLD_STORAGE_WRITE |
KECCAK256 |
besu (R²), erigon (R²), ethrex (both), geth (R²), nethermind (both), reth (both) |
COLD_ACCOUNT_CODE_ACCESS, COLD_ACCOUNT_CODE_WRITE |
LT |
besu (R²) |
COLD_STORAGE_ACCESS, COLD_STORAGE_WRITE |
MSTORE |
reth (R²) |
COLD_ACCOUNT_CODE_ACCESS, COLD_ACCOUNT_CODE_WRITE, COLD_ACCOUNT_NOCODE_ACCESS, COLD_ACCOUNT_NOCODE_WRITE |
RETURNDATASIZE |
besu (R²) |
— |
Other
- derived: 'REFUND_STORAGE_CLEAR' shadows a raw fork field on 'osaka'
- derived: 'TX_ACCESS_LIST_STORAGE_KEY' shadows a raw fork field on 'osaka'
- derived: 'TX_ACCESS_LIST_ADDRESS' shadows a raw fork field on 'osaka'
Poor-fit selections
Rows where the winning fit's p-value exceeded modeling.poor_fit_p_value_threshold (0.05) or its R² fell below modeling.poor_fit_rsquared_threshold (0.5). The failing threshold(s) are noted alongside each row; selections in ### Winners with poor fit still drive the proposal, while ### Other weak candidates lists losing candidates that the selector dropped in favor of a qualified alternative. See runtime_estimation_autogenerated_report.md for per-fit runtime_ms, pvalue, and rsquared metrics.
Winners with poor fit
None.
Other weak candidates
COLD_STORAGE_WRITE — 1 weak combo
| Test |
Target opcode |
Coef |
Combo |
Failing clients |
test_sstore_bloated |
SSTORE |
target_coef |
— |
ethrex (both) |
COLD_ACCOUNT_CODE_ACCESS — 1 weak combo
| Test |
Target opcode |
Coef |
Combo |
Failing clients |
test_account_access |
EXTCODECOPY |
target_coef |
— |
besu (R²) |
COLD_ACCOUNT_NOCODE_WRITE — 1 weak combo
| Test |
Target opcode |
Coef |
Combo |
Failing clients |
test_account_access |
CALLCODE |
target_coef |
— |
besu (R²), nethermind (R²), reth (R²) |
COLD_ACCOUNT_CODE_WRITE — 1 weak combo
| Test |
Target opcode |
Coef |
Combo |
Failing clients |
test_account_access |
CALLCODE |
target_coef |
— |
besu (R²), nethermind (R²), reth (R²) |
WARM_ACCESS — 3 weak combos
| Test |
Target opcode |
Coef |
Combo |
Failing clients |
test_ext_account_query_warm |
BALANCE |
target_coef |
param_opcode=BALANCE |
besu (R²), reth (R²) |
test_ext_account_query_warm |
EXTCODESIZE |
target_coef |
param_opcode=EXTCODESIZE |
besu (R²) |
test_storage_sload_same_key_benchmark |
SLOAD |
target_coef |
— |
besu (R²), reth (R²) |