perf: cache recent state-aware balance

[tempoxyz-bot]

Keep a one-entry cache of the most recently updated decreased fee-balance slot in the state-aware best-transaction iterator. Candidate checks can use the cached balance before falling back to the hash map when payload selection sees repeated fee payers.

[tempoxyz-bot]

derek bench mode=e2e otlp=false

[decofe]

cc @tempoxyz-bot

✅ Benchmark complete: Improvement View job

✅ Bench Comparison: Improvement

Refs: main vs auto-opt/20260609-state-aware-last-balance-cache
Criteria: 95% run-bootstrap CI must clear floor; cells show delta (+/-CI/floor).

Configuration

• Derek command: derek bench mode=e2e preset=tip20 duration=90 bloat=100 tps=50000 accounts=1000 max-concurrent-requests=500 baseline=main feature=auto-opt/20260609-state-aware-last-balance-cache baseline-hardfork="" feature-hardfork="" gas-limit=1000000000 run-pairs=3 otlp=false metrics=false no-cache=false force-bloat=false
• Bloat: 100000 MiB
• Preset: tip20
• Target TPS: 50000
• Duration: 90s
• Run pairs: 3
• Baseline blocks: 486
• Feature blocks: 483

Tempo Metrics

Metric	Baseline	Feature	Delta
TPS Mean	22309	22453	+0.65% ⚪ (+/-1.02/floor 0.55)
Gas Throughput [Mgas/s]	987.0	993.3	+0.64% ⚪ (+/-1.02/floor 0.50)
Block Time Mean [ms]	554.0	554.8	+0.14% ⚪ (+/-0.31/floor 0.40)
Block Time P50 [ms]	555.0	557.0	+0.36% ⚪ (+/-0.27/floor 0.70)
Block Time P90 [ms]	584.0	587.0	+0.51% ⚪ (+/-0.34/floor 0.70)
Block Time P99 [ms]	611.0	615.0	+0.65% ⚪ (+/-1.91/floor 1.60)
Serialized Block Size / Tx P50 [B/tx]	251.1	251.1	+0.00% ⚪ (+/-0.00/floor 0.70)
Serialized Block Size / Tx P90 [B/tx]	251.1	251.1	+0.00% ⚪ (+/-0.00/floor 0.70)
Serialized Block Size / Tx P99 [B/tx]	251.1	251.1	+0.00% ⚪ (+/-0.00/floor 0.70)

Builder

Metric	Baseline	Feature	Delta
Gas Throughput [Mgas/s]	2376.3	2398.0	+0.91% ⚪ (+/-0.87/floor 0.70)
P50 [ms]	228.8	228.8	+0.00% ⚪ (+/-0.36/floor 0.35)
P90 [ms]	242.4	241.4	-0.41% ⚪ (+/-0.85/floor 0.70)
P99 [ms]	291.7	269.9	-7.47% ✅ (+/-4.93/floor 0.95)

Builder details

Metric	Baseline	Feature	Delta
Finish P50 [ms]	22.8	23.3	+2.19%
Finish P90 [ms]	32.6	32.4	-0.61%
Finish P99 [ms]	42.1	41.6	-1.19%
Pool Fetch P50 [ms]	9.8	10.5	+7.14%
Pool Fetch P90 [ms]	23.5	25.1	+6.81%
Pool Fetch P99 [ms]	32.6	32.7	+0.31%
Included Tx Exec P50 [ms]	-	-
Included Tx Exec P90 [ms]	-	-
Included Tx Exec P99 [ms]	-	-
Invalid Tx Exec P50 [ms]	-	-
Invalid Tx Exec P90 [ms]	-	-
Invalid Tx Exec P99 [ms]	-	-
Invalid Tx Attempts P50	0.0	0.0	0.00%
Invalid Tx Attempts P90	0.0	0.0	0.00%
Invalid Tx Attempts P99	0.0	0.0	0.00%
Invalid Tx Skips	0	0	0.00%
Nonce Too Low Skips	0	0	0.00%
Serialized Block Size P50 [KiB]	3085.9	3102.4	+0.53%
Serialized Block Size P90 [KiB]	3400.7	3448.7	+1.41%
Serialized Block Size P99 [KiB]	3941.2	3987.2	+1.17%
Fill Overhead P50 [ms]	-	-
Fill Overhead P90 [ms]	-	-
Fill Overhead P99 [ms]	-	-
Fill Idle P50 [ms]	0.0	0.0	0.00%
Fill Idle P90 [ms]	13.0	8.0	-38.46%
Fill Idle P99 [ms]	117.0	96.0	-17.95%

Validator

Metric	Baseline	Feature	Delta
Gas Throughput [Mgas/s]	2319.2	2315.9	-0.14% ⚪ (+/-0.41/floor 0.65)
P50 [ms]	238.1	239.2	+0.46% ⚪ (+/-0.67/floor 1.55)
P90 [ms]	258.9	260.0	+0.42% ⚪ (+/-0.36/floor 1.55)
P99 [ms]	270.5	277.3	+2.51% ⚪ (+/-2.74/floor 2.05)

Observability

• Internal dashboard
• Logs
• Traces

[tempoxyz-bot]

derek bench samply run-pairs=1 duration=300 no-slack

[decofe]

cc @tempoxyz-bot

⚪ Benchmark complete: No Difference View job

⚪ Bench Comparison: No Difference

Refs: main vs auto-opt/20260609-state-aware-last-balance-cache
Criteria: 95% run-bootstrap CI must clear floor; cells show delta (+/-CI/floor).

Configuration

• Derek command: derek bench mode=e2e preset=tip20 duration=300 bloat=100 tps=50000 accounts=1000 max-concurrent-requests=500 baseline=main feature=auto-opt/20260609-state-aware-last-balance-cache baseline-hardfork="" feature-hardfork="" gas-limit=1000000000 run-pairs=1 otlp=true metrics=false no-cache=false force-bloat=false samply
• Bloat: 100000 MiB
• Preset: tip20
• Target TPS: 50000
• Duration: 300s
• Run pairs: 1
• Baseline blocks: 546
• Feature blocks: 548

Tempo Metrics

Metric	Baseline	Feature	Delta
TPS Mean	20574	20484	-0.44% ⚪
Gas Throughput [Mgas/s]	910.2	906.2	-0.44% ⚪
Block Time Mean [ms]	547.8	546.5	-0.24% ⚪
Block Time P50 [ms]	546.0	547.0	+0.18% ⚪
Block Time P90 [ms]	584.0	584.0	+0.00% ⚪
Block Time P99 [ms]	620.0	615.0	-0.81% ⚪
Serialized Block Size / Tx P50 [B/tx]	251.1	251.1	+0.00% ⚪
Serialized Block Size / Tx P90 [B/tx]	251.1	251.1	+0.00% ⚪
Serialized Block Size / Tx P99 [B/tx]	251.1	251.1	+0.00% ⚪

Builder

Metric	Baseline	Feature	Delta
Gas Throughput [Mgas/s]	2190.6	2187.1	-0.16% ⚪
P50 [ms]	226.9	225.7	-0.53% ⚪
P90 [ms]	241.8	242.1	+0.12% ⚪
P99 [ms]	257.0	263.5	+2.53% ⚪

Builder details

Metric	Baseline	Feature	Delta
Finish P50 [ms]	31.8	31.3	-1.57%
Finish P90 [ms]	49.0	48.5	-1.02%
Finish P99 [ms]	58.1	60.0	+3.27%
Pool Fetch P50 [ms]	8.6	9.3	+8.14%
Pool Fetch P90 [ms]	23.4	22.2	-5.13%
Pool Fetch P99 [ms]	32.3	29.3	-9.29%
Included Tx Exec P50 [ms]	-	-
Included Tx Exec P90 [ms]	-	-
Included Tx Exec P99 [ms]	-	-
Invalid Tx Exec P50 [ms]	-	-
Invalid Tx Exec P90 [ms]	-	-
Invalid Tx Exec P99 [ms]	-	-
Invalid Tx Attempts P50	0.0	0.0	0.00%
Invalid Tx Attempts P90	0.0	0.0	0.00%
Invalid Tx Attempts P99	0.0	0.0	0.00%
Invalid Tx Skips	0	0	0.00%
Nonce Too Low Skips	0	0	0.00%
Serialized Block Size P50 [KiB]	2786.2	2761.2	-0.90%
Serialized Block Size P90 [KiB]	3125.2	3124.9	-0.01%
Serialized Block Size P99 [KiB]	3762.2	3625.9	-3.62%
Fill Overhead P50 [ms]	-	-
Fill Overhead P90 [ms]	-	-
Fill Overhead P99 [ms]	-	-
Fill Idle P50 [ms]	0.0	0.0	0.00%
Fill Idle P90 [ms]	8.0	3.0	-62.50%
Fill Idle P99 [ms]	83.0	87.0	+4.82%

Validator

Metric	Baseline	Feature	Delta
Gas Throughput [Mgas/s]	2142.6	2132.8	-0.46% ⚪
P50 [ms]	232.5	232.5	+0.00% ⚪
P90 [ms]	257.1	257.8	+0.27% ⚪
P99 [ms]	274.2	275.1	+0.33% ⚪

Observability

• Internal dashboard
• Logs
• Traces

Samply Profiles

• feature-1 / a: Firefox Profiler
• feature-1 / b: Firefox Profiler
• baseline-1 / a: Firefox Profiler
• baseline-1 / b: Firefox Profiler