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feat: Optimise sandbox startup time by only initialising the BB solver once. #2240

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merged 2 commits into from
Sep 12, 2023
Merged

feat: Optimise sandbox startup time by only initialising the BB solver once. #2240

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3417cd1
Optimise sandbox startup time
PhilWindle Sep 12, 2023
425beb1
Merge branch 'master' into pw/simulator-optimisation
PhilWindle Sep 12, 2023
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6 changes: 3 additions & 3 deletions yarn-project/acir-simulator/src/client/simulator.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -22,7 +22,7 @@ import { UnconstrainedFunctionExecution } from './unconstrained_execution.js';
* The ACIR simulator.
*/
export class AcirSimulator {
private static solver: WasmBlackBoxFunctionSolver; // ACVM's backend
private static solver: Promise<WasmBlackBoxFunctionSolver>; // ACVM's backend
private log: DebugLogger;

constructor(private db: DBOracle) {
Expand All @@ -42,8 +42,8 @@ export class AcirSimulator {
*
* @returns ACVM WasmBlackBoxFunctionSolver
*/
public static async getSolver(): Promise<WasmBlackBoxFunctionSolver> {
if (!this.solver) this.solver = await createBlackBoxSolver();
public static getSolver(): Promise<WasmBlackBoxFunctionSolver> {
if (!this.solver) this.solver = createBlackBoxSolver();
return this.solver;
}

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5 changes: 3 additions & 2 deletions yarn-project/sequencer-client/src/sequencer/sequencer.ts
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Expand Up @@ -129,10 +129,11 @@ export class Sequencer {
return;
}

this.log(`Processing ${validTxs.length} txs...`);
const blockNumber = (await this.l2BlockSource.getBlockNumber()) + 1;

this.log.info(`Building block ${blockNumber} with ${validTxs.length} transactions...`);
this.state = SequencerState.CREATING_BLOCK;

const blockNumber = (await this.l2BlockSource.getBlockNumber()) + 1;
const newGlobalVariables = await this.globalsBuilder.buildGlobalVariables(new Fr(blockNumber));
const prevGlobalVariables = (await this.l2BlockSource.getL2Block(-1))?.globalVariables ?? GlobalVariables.empty();

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