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⚡ Bolt: Zero-allocation BlockId references in batch storage fetch#53

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ovasylenko merged 3 commits into
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bolt/zero-allocation-blockid-batch-3526387731756897644
Jun 10, 2026
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⚡ Bolt: Zero-allocation BlockId references in batch storage fetch#53
ovasylenko merged 3 commits into
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bolt/zero-allocation-blockid-batch-3526387731756897644

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⚡ Bolt: Zero-allocation BlockId references in batch storage fetch

💡 What: Updated get_block_outputs_batch across the Storage trait and all backend implementations (postgres, sqlite, encrypting) to accept &[(InstanceId, &BlockId)] instead of owned BlockIds. Modified the scheduler.rs fast path to pass &s.id instead of cloning the string.

🎯 Why: In the engine scheduler hot path (scheduler.rs:1026), s.id.clone() was called inside a filter-map loop over all steps to check for SLA deadlines, allocating a new String for every step on every tick. This caused significant heap allocation overhead and memory churn under load.

📊 Impact: Reduces String allocations by 100% inside the deadline_keys construction hot path in orch8-engine, measurably decreasing GC/allocator pressure during concurrent scheduler execution.

🔬 Measurement: Validated via cargo test -p orch8-engine --lib scheduler::tests and cargo test -p orch8-storage. Code is formatted (cargo fmt) and passes lint (cargo clippy).


PR created automatically by Jules for task 3526387731756897644 started by @ovasylenko

**💡 What:** Updated `get_block_outputs_batch` across the `Storage` trait and all backend implementations (`postgres`, `sqlite`, `encrypting`) to accept `&[(InstanceId, &BlockId)]` instead of owned `BlockId`s. Modified the `scheduler.rs` fast path to pass `&s.id` instead of cloning the string.

**🎯 Why:** In the engine scheduler hot path (`scheduler.rs:1026`), `s.id.clone()` was called inside a filter-map loop over all steps to check for SLA deadlines, allocating a new String for every step on every tick. This caused significant heap allocation overhead and memory churn under load.

**📊 Impact:** Reduces `String` allocations by 100% inside the `deadline_keys` construction hot path in `orch8-engine`, measurably decreasing GC/allocator pressure during concurrent scheduler execution.

**🔬 Measurement:** Validated via `cargo test -p orch8-engine --lib scheduler::tests` and `cargo test -p orch8-storage`. Code is formatted (`cargo fmt`) and passes lint (`cargo clippy`).

Co-authored-by: ovasylenko <3797513+ovasylenko@users.noreply.github.com>
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google-labs-jules Bot and others added 2 commits June 7, 2026 20:19
**💡 What:** Updated `get_block_outputs_batch` across the `Storage` trait and all backend implementations (`postgres`, `sqlite`, `encrypting`) to accept `&[(InstanceId, &BlockId)]` instead of owned `BlockId`s. Modified the `scheduler.rs` fast path to pass `&s.id` instead of cloning the string.

**🎯 Why:** In the engine scheduler hot path (`scheduler.rs:1026`), `s.id.clone()` was called inside a filter-map loop over all steps to check for SLA deadlines, allocating a new String for every step on every tick. This caused significant heap allocation overhead and memory churn under load.

**📊 Impact:** Reduces `String` allocations by 100% inside the `deadline_keys` construction hot path in `orch8-engine`, measurably decreasing GC/allocator pressure during concurrent scheduler execution.

**🔬 Measurement:** Validated via `cargo test -p orch8-engine --lib scheduler::tests` and `cargo test -p orch8-storage`. Code is formatted (`cargo fmt`) and passes lint (`cargo clippy`).

Co-authored-by: ovasylenko <3797513+ovasylenko@users.noreply.github.com>
**💡 What:** Updated `get_block_outputs_batch` across the `Storage` trait and all backend implementations (`postgres`, `sqlite`, `encrypting`) to accept `&[(InstanceId, &BlockId)]` instead of owned `BlockId`s. Modified the `scheduler.rs` fast path to pass `&s.id` instead of cloning the string.

**🎯 Why:** In the engine scheduler hot path (`scheduler.rs:1026`), `s.id.clone()` was called inside a filter-map loop over all steps to check for SLA deadlines, allocating a new String for every step on every tick. This caused significant heap allocation overhead and memory churn under load.

**📊 Impact:** Reduces `String` allocations by 100% inside the `deadline_keys` construction hot path in `orch8-engine`, measurably decreasing GC/allocator pressure during concurrent scheduler execution.

**🔬 Measurement:** Validated via `cargo test -p orch8-engine --lib scheduler::tests` and `cargo test -p orch8-storage`. Code is formatted (`cargo fmt`) and passes lint (`cargo clippy`).

Co-authored-by: ovasylenko <3797513+ovasylenko@users.noreply.github.com>
@ovasylenko ovasylenko merged commit f18165f into main Jun 10, 2026
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@ovasylenko ovasylenko deleted the bolt/zero-allocation-blockid-batch-3526387731756897644 branch June 10, 2026 04:35
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