perf(db): Pass ExecutedBlocks to OverlayBuilder, reduce reverts queried by mediocregopher · Pull Request #23657 · paradigmxyz/reth

mediocregopher · 2026-04-20T14:51:58Z

LazyOverlay now carries executed blocks, derives and caches overlays by requested anchor, and OverlayBuilder::new requires the anchor hash when combining reverts with lazy or immediate overlays. This allows us to not have to request reverts in OverlayBuilder when the new anchor is the parent of one of the blocks in the overlay itself, we just recompute a new overlay on the fly.

Example

Given:

anchor block: 10
overlay blocks: 11->15
db tip: 13 (can happen if persistence completes during payload validation initialization)

Previously

Overlay = reverts(13->10) + in_mem_overlay(11->15)

Now

Overlay = in_mem_overlay(14->15) (computed on-the-fly)

Co-authored-by: Brian Picciano <933154+mediocregopher@users.noreply.github.com> Amp-Thread-ID: https://ampcode.com/threads/T-019dab40-7d65-709b-90d6-98965c5c6a65 Co-authored-by: Amp <amp@ampcode.com>

Co-authored-by: Brian Picciano <933154+mediocregopher@users.noreply.github.com> Amp-Thread-ID: https://ampcode.com/threads/T-019dab6f-7cee-755e-9f9c-309ae0b8517c Co-authored-by: Amp <amp@ampcode.com>

Co-authored-by: Brian Picciano <933154+mediocregopher@users.noreply.github.com> Amp-Thread-ID: https://ampcode.com/threads/T-019daba4-3598-758d-8771-cb5db784db81 Co-authored-by: Amp <amp@ampcode.com>

Co-authored-by: Brian Picciano <933154+mediocregopher@users.noreply.github.com> Amp-Thread-ID: https://ampcode.com/threads/T-019dafa5-05ee-739e-a0b6-037cc30e4a0e Co-authored-by: Amp <amp@ampcode.com>

Co-authored-by: Brian Picciano <933154+mediocregopher@users.noreply.github.com> Amp-Thread-ID: https://ampcode.com/threads/T-019daba4-3598-758d-8771-cb5db784db81 Co-authored-by: Amp <amp@ampcode.com>

Co-authored-by: Brian Picciano <933154+mediocregopher@users.noreply.github.com> Amp-Thread-ID: https://ampcode.com/threads/T-019dafbb-3571-73ef-ae67-43c242e2bf23 Co-authored-by: Amp <amp@ampcode.com>

Co-authored-by: Brian Picciano <933154+mediocregopher@users.noreply.github.com> Amp-Thread-ID: https://ampcode.com/threads/T-019db57a-7f08-7761-9a50-27a2a5c8f917 Co-authored-by: Amp <amp@ampcode.com>

mediocregopher · 2026-04-22T13:59:53Z

derek bench big-blocks

decofe · 2026-04-22T14:00:07Z

cc @mediocregopher

✅ Benchmark complete! View job

Benchmark Results

Metric	`main`	`mediocregopher/lazyoverlay-refactor`	Change
Mean	793.44ms	775.25ms	-2.29% ✅ (±1.35%)
StdDev	207.82ms	172.31ms
P50	746.01ms	738.41ms	-1.02% ⚪ (±1.52%)
P90	1021.66ms	929.68ms	-9.00% ✅ (±3.39%)
P99	1778.02ms	1612.10ms	-9.33% ⚪ (±18.06%)
Mgas/s	1343.03	1359.51	+1.23% ✅ (±1.05%)
Wall Clock	825.45s	807.65s	-2.16% ✅ (±1.71%)
Persist Wait	2.06ms	1.75ms	-14.90% ⚪ (±67.10%)

500 big blocks, 20 warmup

Wait Time Breakdown

Persistence Wait

Metric	`main`	`mediocregopher/lazyoverlay-refactor`
Mean	2.06ms	1.75ms
P50	0.06ms	0.06ms
P95	0.09ms	0.09ms

Trie Cache Update Wait

Metric	`main`	`mediocregopher/lazyoverlay-refactor`
Mean	0.35ms	0.26ms
P50	0.00ms	0.00ms
P95	0.00ms	0.00ms

Execution Cache Update Wait

Metric	`main`	`mediocregopher/lazyoverlay-refactor`
Mean	0.00ms	0.00ms
P50	0.00ms	0.00ms
P95	0.00ms	0.00ms

Grafana Dashboard

Charts

Latency, Throughput & Diff

Wait Time Breakdown

Gas vs Latency

Grafana Dashboard

View real-time metrics

Co-authored-by: Brian Picciano <933154+mediocregopher@users.noreply.github.com> Amp-Thread-ID: https://ampcode.com/threads/T-019db57a-7f08-7761-9a50-27a2a5c8f917 Co-authored-by: Amp <amp@ampcode.com>

Co-authored-by: Brian Picciano <933154+mediocregopher@users.noreply.github.com> Amp-Thread-ID: https://ampcode.com/threads/T-019dbc30-68d0-76b8-a32c-e1173122ca48 Co-authored-by: Amp <amp@ampcode.com>

mediocregopher · 2026-04-24T09:31:20Z

derek bench blocks=2000

mediocregopher · 2026-04-24T09:31:29Z

derek bench blocks=500 big-blocks

decofe · 2026-04-24T09:40:59Z

cc @mediocregopher

❌ Benchmark failed while running baseline benchmark (1/2). View logs

decofe · 2026-04-24T09:51:09Z

cc @mediocregopher

❌ Benchmark failed while unknown step. View logs

decofe · 2026-04-24T09:53:25Z

cc @mediocregopher

❌ Benchmark failed while unknown step. View logs

Co-authored-by: Brian Picciano <933154+mediocregopher@users.noreply.github.com> Amp-Thread-ID: https://ampcode.com/threads/T-019dbee7-f576-769d-923c-dfdfe0a40858 Co-authored-by: Amp <amp@ampcode.com>

mediocregopher · 2026-04-24T10:07:07Z

derek bench blocks=2000

decofe · 2026-04-24T10:07:19Z

cc @mediocregopher

✅ Benchmark complete! View job

Benchmark Results

⚠️ Feature is 5 commits behind main. Consider rebasing for accurate results.

Metric	`main`	`mediocregopher/lazyoverlay-refactor`	Change
Mean	30.40ms	30.39ms	-0.03% ⚪ (±1.20%)
StdDev	24.56ms	24.37ms
P50	24.39ms	24.38ms	-0.03% ⚪ (±1.17%)
P90	48.05ms	48.71ms	+1.37% ⚪ (±3.49%)
P99	139.93ms	140.49ms	+0.40% ⚪ (±8.74%)
Mgas/s	1138.75	1139.73	+0.09% ⚪ (±0.55%)
Wall Clock	125.51s	125.30s	-0.17% ⚪ (±1.17%)
Persist Wait	23.33ms	23.21ms	-0.55% ⚪ (±12.69%)

2000 blocks, 200 warmup

Wait Time Breakdown

Persistence Wait

Metric	`main`	`mediocregopher/lazyoverlay-refactor`
Mean	23.33ms	23.21ms
P50	0.02ms	0.02ms
P95	223.69ms	217.59ms

Trie Cache Update Wait

Metric	`main`	`mediocregopher/lazyoverlay-refactor`
Mean	0.42ms	0.40ms
P50	0.05ms	0.04ms
P95	1.78ms	1.64ms

Execution Cache Update Wait

Metric	`main`	`mediocregopher/lazyoverlay-refactor`
Mean	0.00ms	0.00ms
P50	0.00ms	0.00ms
P95	0.00ms	0.00ms

Grafana Dashboard

Charts

Latency, Throughput & Diff

Wait Time Breakdown

Gas vs Latency

Grafana Dashboard

View real-time metrics

Co-authored-by: Brian Picciano <933154+mediocregopher@users.noreply.github.com> Amp-Thread-ID: https://ampcode.com/threads/T-019dbf08-3c9d-736b-9b47-3070f2bf2a54 Co-authored-by: Amp <amp@ampcode.com>

Co-authored-by: Brian Picciano <933154+mediocregopher@users.noreply.github.com> Amp-Thread-ID: https://ampcode.com/threads/T-019dcdd4-c9f4-76ec-b23f-c18456b71247 Co-authored-by: Amp <amp@ampcode.com>

…erlay-refactor

mediocregopher · 2026-04-27T10:55:56Z

+        // If the DB tip has moved forward into the `LazyOverlay` then we still don't need to
+        // revert, the `LazyOverlay` will generate a new in-memory overlay using only the relevant
+        // blocks data.
+        if let Some(OverlaySource::Lazy(lazy_overlay)) = &self.overlay_source &&
+            lazy_overlay.has_anchor_hash(db_tip_block.hash)
+        {
+            return Ok(None)


This is the optimization

Co-authored-by: Brian Picciano <933154+mediocregopher@users.noreply.github.com> Amp-Thread-ID: https://ampcode.com/threads/T-019dce92-2fe5-730d-9b8e-69d62a796b85 Co-authored-by: Amp <amp@ampcode.com>

mattsse

LGTM

Automated nightly update of reth dependencies from `paradigmxyz/reth` main branch. ## Upstream reth changes [`7839f3d...73ec2c9`](paradigmxyz/reth@7839f3d...73ec2c9) 🔗 Amp thread: https://ampcode.com/threads/T-019dd89b-f659-75eb-a3f2-3e769d63297f **Engine** - Spawn BAL hashed state before storage prefetch ([#23761](paradigmxyz/reth#23761)) and disable BAL parallel execution by default ([#23764](paradigmxyz/reth#23764)) - Add CLI flag to disable BAL storage prefetch ([#23770](paradigmxyz/reth#23770)) - Log transient invalid header cache skips ([#23711](paradigmxyz/reth#23711)) - Add `DecodedBal` in `ExecutionEnv` ([#23675](paradigmxyz/reth#23675)) **RPC** - Clean up eth state cache reorg entries ([#23683](paradigmxyz/reth#23683)) - Pass block timestamp to txn ([#23700](paradigmxyz/reth#23700)) - Include block numbers in `BlockRangeExceedsHead` error ([#23720](paradigmxyz/reth#23720)) **Network / P2P** - Add Basic in-memory BAL store and BAL request to block access list requests ([#23682](paradigmxyz/reth#23682), [#23710](paradigmxyz/reth#23710)) - Enforce BAL response soft limit and apply count cap to handler ([#23725](paradigmxyz/reth#23725), [#23754](paradigmxyz/reth#23754)) - Avoid RLP-decoding `NewBlock` payloads ([#23712](paradigmxyz/reth#23712)) and bound memory footprint of p2p messages ([#23718](paradigmxyz/reth#23718)) - Memory-bound channel between network and tx manager ([#23802](paradigmxyz/reth#23802)) - Track unknown tx types in announcement metrics ([#23688](paradigmxyz/reth#23688)) - Retain active session buffer capacity ([#23702](paradigmxyz/reth#23702)) and respect peer requirements for fetch followups ([#23706](paradigmxyz/reth#23706)) - Support binding discv5 and discv4 to the same port ([#23613](paradigmxyz/reth#23613)) and use Weak reference in discv5 kbuckets bg task to release port on shutdown ([#23282](paradigmxyz/reth#23282)) **Trie** - Skip DB seek on exact overlay hits ([#23559](paradigmxyz/reth#23559)) - Account for heap-allocated blinded hashes in `SparseNode::memory_size` ([#23726](paradigmxyz/reth#23726)) **DB / Storage** - `reth db migrate-v2` for pruned nodes ([#23716](paradigmxyz/reth#23716)) - Pass `ExecutedBlocks` to `OverlayBuilder`, reduce reverts queried ([#23657](paradigmxyz/reth#23657)) - Add empty request check to storage values ([#23714](paradigmxyz/reth#23714)) - Derive `Eq` for `IntegerList` ([#23709](paradigmxyz/reth#23709)) and reorder unix deps after strum ([#23697](paradigmxyz/reth#23697)) **Provider / EVM** - Use overlay builders in historical state paths ([#23667](paradigmxyz/reth#23667)) - Return gas output from block builder ([#23744](paradigmxyz/reth#23744)) - Expose executor transaction result type ([#23759](paradigmxyz/reth#23759)) **Perf** - Configurable rocksdb block cache size and re-use of mdbx provider in re-execute ([#23701](paradigmxyz/reth#23701)) - Enable revm `p256-aws-lc-rs` feature ([#23721](paradigmxyz/reth#23721)) - Add platform-specific RUSTFLAGS to Dockerfile ([#23738](paradigmxyz/reth#23738)) **Bench** - Add reorg mode to `new-payload-fcu` ([#23666](paradigmxyz/reth#23666)) - Enable `keccak-cache-global` in `reth-bb` ([#23723](paradigmxyz/reth#23723)) and fix multi-executor support ([#23763](paradigmxyz/reth#23763)) - Dedupe merged BAL storage reads ([#23758](paradigmxyz/reth#23758)) **Re-execute** - Verify reverts against changesets ([#23717](paradigmxyz/reth#23717)) **Payload** - Track Amsterdam block gas in builders ([#23743](paradigmxyz/reth#23743)) **CLI** - Use `TxTy`/`ReceiptTy` for static-file db get ([#23692](paradigmxyz/reth#23692)) and node types in execution stage dump ([#23705](paradigmxyz/reth#23705)) - Preserve `trusted_nodes_only` from config when `--trusted-only` is unset ([#23703](paradigmxyz/reth#23703)) - Avoid u64 underflow in `setup_without_evm` for genesis header ([#23728](paradigmxyz/reth#23728)) **Testing** - Add BAL request e2e coverage ([#23727](paradigmxyz/reth#23727)) - Cover admin node info discv5 port ([#23781](paradigmxyz/reth#23781)) **Misc** - Bump reth core to v0.3.1 ([#23707](paradigmxyz/reth#23707)) and alloy-evm to 0.33.3 ([#23778](paradigmxyz/reth#23778)) - Align ERA1 export with spec ([#23693](paradigmxyz/reth#23693)) ## Migrations 🔗 Amp thread: https://ampcode.com/threads/T-019dd89c-63d3-752f-ac22-7d4aef2ac3e3 - **Bumped reth git rev** from `7839f3d` to `73ec2c9` across all `reth-*` workspace dependencies in [Cargo.toml](file:///home/runner/work/tempo/tempo/Cargo.toml), and bumped `reth-primitives-traits` from `0.3.0` to `0.3.1` and `alloy-evm` from `0.33.0` to `0.34.0` to track upstream releases. - **Switched p2p proxy transactions channel** from `tokio::sync::mpsc::unbounded_channel` to `reth_metrics::common::mpsc::memory_bounded_channel` with a 32 MiB budget in [bin/tempo/src/p2p_proxy.rs](file:///home/runner/work/tempo/tempo/bin/tempo/src/p2p_proxy.rs), matching reth's new default `tx_channel_memory_limit_bytes` to prevent unbounded memory growth; added `reth-metrics` to [bin/tempo/Cargo.toml](file:///home/runner/work/tempo/tempo/bin/tempo/Cargo.toml). - **Changed `BlockExecutor::commit_transaction` signature** in [crates/evm/src/block.rs](file:///home/runner/work/tempo/tempo/crates/evm/src/block.rs) from returning `Result<GasOutput, BlockExecutionError>` to returning `GasOutput` directly (upstream removed the fallible return); replaced the missing-tx error with an `expect`, and updated all tests to drop `.unwrap()`. - **Added `Send + 'static` bound to `TxResult` impl** for `TempoTxResult<H>` to satisfy the new upstream trait bounds on associated execution-result types. - **Exposed `TempoBlockExecutor` and `TempoTxResult` as `pub`** (previously `pub(crate)`) and re-exported them from [crates/evm/src/lib.rs](file:///home/runner/work/tempo/tempo/crates/evm/src/lib.rs) so they can be named in the new associated types. - **Added associated types `TxExecutionResult` and `Executor` to `BlockExecutorFactory` impl** for `TempoEvmConfig`, and changed `create_executor` to return the concrete `Self::Executor<'a, DB, I>` instead of `impl BlockExecutorFor<'a, Self, DB, I>`, tracking upstream's move from RPIT to named associated types; dropped the now-unused `BlockExecutorFor` import and the `'a` lifetime bounds on `DB`/`I`. - **Implemented new `HeaderMut` methods** (`set_mix_hash`, `set_extra_data`, `set_parent_beacon_block_root`) for `TempoHeader` in [crates/primitives/src/reth_compat/header.rs](file:///home/runner/work/tempo/tempo/crates/primitives/src/reth_compat/header.rs) to satisfy the expanded upstream trait, delegating to the inner Ethereum header. [GitHub Workflow](https://github.com/tempoxyz/tempo/actions/runs/25101489247) --------- Co-authored-by: Centaur AI <ai@centaur.local> Co-authored-by: Amp <amp@ampcode.com> Co-authored-by: klkvr <klkvrr@gmail.com>

refactor(chain-state): derive lazy overlay anchor from blocks

be4e8cd

Co-authored-by: Brian Picciano <933154+mediocregopher@users.noreply.github.com> Amp-Thread-ID: https://ampcode.com/threads/T-019dab40-7d65-709b-90d6-98965c5c6a65 Co-authored-by: Amp <amp@ampcode.com>

github-project-automation Bot added this to Reth Tracker Apr 20, 2026

github-project-automation Bot moved this to Backlog in Reth Tracker Apr 20, 2026

mediocregopher added A-engine Related to the engine implementation A-trie Related to Merkle Patricia Trie implementation C-debt A clean up/refactor of existing code labels Apr 20, 2026

mediocregopher self-assigned this Apr 20, 2026

mediocregopher commented Apr 20, 2026

View reviewed changes

mediocregopher and others added 2 commits April 20, 2026 15:01

refactor(chain-state): address lazy overlay review feedback

cacb69a

Co-authored-by: Brian Picciano <933154+mediocregopher@users.noreply.github.com> Amp-Thread-ID: https://ampcode.com/threads/T-019dab40-7d65-709b-90d6-98965c5c6a65 Co-authored-by: Amp <amp@ampcode.com>

refactor(chain-state): cache lazy overlays by anchor

ebfaa6f

Co-authored-by: Brian Picciano <933154+mediocregopher@users.noreply.github.com> Amp-Thread-ID: https://ampcode.com/threads/T-019dab6f-7cee-755e-9f9c-309ae0b8517c Co-authored-by: Amp <amp@ampcode.com>

mediocregopher commented Apr 20, 2026

View reviewed changes

Comment thread crates/storage/provider/src/providers/state/overlay.rs Outdated

mediocregopher and others added 2 commits April 20, 2026 15:46

refactor(provider): resolve lazy overlay anchors at use time

5041d55

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refactor(provider): separate overlay anchors from revert state

812e479

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mediocregopher commented Apr 20, 2026

View reviewed changes

refactor(provider): infer overlay anchors from sources

5036eb5

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mediocregopher commented Apr 20, 2026

View reviewed changes

Comment thread crates/engine/tree/src/tree/payload_validator.rs Outdated

Comment thread crates/storage/provider/src/providers/state/overlay.rs Outdated

mediocregopher and others added 7 commits April 20, 2026 16:36

refactor(provider): thread explicit requested anchors

b5ad001

Co-authored-by: Brian Picciano <933154+mediocregopher@users.noreply.github.com> Amp-Thread-ID: https://ampcode.com/threads/T-019daba4-3598-758d-8771-cb5db784db81 Co-authored-by: Amp <amp@ampcode.com>

fix(provider): anchor overlay state providers by hash

d92ad5a

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fix(provider): pass overlay anchors via constructor

134a7f3

Co-authored-by: Brian Picciano <933154+mediocregopher@users.noreply.github.com> Amp-Thread-ID: https://ampcode.com/threads/T-019daba4-3598-758d-8771-cb5db784db81 Co-authored-by: Amp <amp@ampcode.com>

fix(engine): anchor state-root test overlay factory

7db14d0

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fix(trie): initialize test overlay anchors

45db5e0

Co-authored-by: Brian Picciano <933154+mediocregopher@users.noreply.github.com> Amp-Thread-ID: https://ampcode.com/threads/T-019dafbb-3571-73ef-ae67-43c242e2bf23 Co-authored-by: Amp <amp@ampcode.com>

fix(provider): satisfy overlay lint checks

ffb0587

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Merge branch 'main' into mediocregopher/lazyoverlay-refactor

87b5240

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mediocregopher and others added 3 commits April 22, 2026 14:11

fix(engine): update sparse trie overlay factory test

d5169ed

Co-authored-by: Brian Picciano <933154+mediocregopher@users.noreply.github.com> Amp-Thread-ID: https://ampcode.com/threads/T-019db57a-7f08-7761-9a50-27a2a5c8f917 Co-authored-by: Amp <amp@ampcode.com>

style(engine): format sparse trie overlay test

c4d0949

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Merge branch 'main' into mediocregopher/lazyoverlay-refactor

6e8dbe3

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fix(ci): clean bench checkouts and lock cargo builds

31d0c78

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refactor(provider): require overlay builder anchor hash

b6eec2e

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mediocregopher mentioned this pull request Apr 27, 2026

feat(engine): support dual-frontier partial trie persistence #23592

Closed

test(trie): initialize canonical genesis in overlay root test

dd7c9a8

Co-authored-by: Brian Picciano <933154+mediocregopher@users.noreply.github.com> Amp-Thread-ID: https://ampcode.com/threads/T-019dcdd4-c9f4-76ec-b23f-c18456b71247 Co-authored-by: Amp <amp@ampcode.com>

mediocregopher changed the title ~~refactor(chain-state): derive lazy overlay anchor from blocks~~ refactor(provider): anchor state overlays in OverlayBuilder Apr 27, 2026

mediocregopher changed the title ~~refactor(provider): anchor state overlays in OverlayBuilder~~ perf(db): Pass ExecutedBlocks to OverlayBuilder, reduce reverts queried Apr 27, 2026

Merge remote-tracking branch 'origin/main' into mediocregopher/lazyov…

2065ca1

…erlay-refactor

mediocregopher commented Apr 27, 2026

View reviewed changes

fix(provider): make historical state use provider primitives

eaefe88

Co-authored-by: Brian Picciano <933154+mediocregopher@users.noreply.github.com> Amp-Thread-ID: https://ampcode.com/threads/T-019dce92-2fe5-730d-9b8e-69d62a796b85 Co-authored-by: Amp <amp@ampcode.com>

mediocregopher marked this pull request as ready for review April 27, 2026 11:07

mediocregopher requested review from Rjected, fgimenez, gakonst, joshieDo, mattsse and shekhirin as code owners April 27, 2026 11:07

mattsse approved these changes Apr 27, 2026

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github-project-automation Bot moved this from Backlog to In Progress in Reth Tracker Apr 27, 2026

mediocregopher added this pull request to the merge queue Apr 27, 2026

Merged via the queue into main with commit 344037d Apr 27, 2026
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mediocregopher deleted the mediocregopher/lazyoverlay-refactor branch April 27, 2026 13:33

github-project-automation Bot moved this from In Progress to Done in Reth Tracker Apr 27, 2026

decofe mentioned this pull request Apr 29, 2026

deps: update reth from main (2026-04-29) tempoxyz/tempo#3714

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