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Updated weekly · Last refresh Sep 13

Top 50 performance analysis Interview Questions

The most frequently asked performance analysis questions across all roles and companies, ranked by real interview frequency. Updated daily.

50questions

~11htotal time

162companies covered

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CodingStart here. 29 questions · ~393 min

Merge Overlapping Time IntervalsMedium

Practice

Recently asked

Merge overlapping intervals by sorting on start time, then scanning once to combine intersecting ranges.

time complexityAlgorithmsperformance analysis

Datadog

Wurl

Fuku

Real-Time Telemetry Window StoreMedium

Practice

Recently asked

Process telemetry stream operations with a sliding-window data structure that answers average and maximum queries efficiently.

time complexityData Structuresperformance analysis

Abm Industries

Anduril Industries

Rivian

Vehicle Event Metrics FunctionMedium

Practice

Recently asked

Sort Tesla vehicle events, identify collision episodes, and calculate minimum time-to-collision metrics in one pass.

ArraysData Structuresperformance analysis

Tesla

Fix Async Counter RaceMedium

Practice

Recently asked

Debug a multithreaded Python counter by eliminating race conditions and verifying correctness with deterministic tests.

Debuggingasynchronousperformance analysis

Palantir technologies

Longest Subarray Under VarianceHard

Practice

Recently asked

Use prefix sums of values and squares to find the longest signal-reading subarray within a population-variance threshold.

ArraysSliding WindowArray Manipulation

Teradyne

Dynamic Programming Resource OptimizationHard

Practice

Recently asked

Use tree knapsack dynamic programming to maximize resource value across a rooted server network under a budget.

Dynamic ProgrammingData StructuresAlgorithms

Roblox

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SQL & Data Manipulation6 questions · ~81 min

SQL Query for Top ProductsMedium

Practice

Rank Natural Intelligence products by completed revenue in the last completed quarter using joins, aggregation, and a date CTE.

sql queryperformance analysis

Natural Intelligence

Chewy

Favor

Top-Performing Products QueryMedium

Practice

Rank Tesco products by Q2 revenue using a date-filtered join, aggregation, and RANK window function.

sqlperformance analysis

MI SelectTTesco

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Metrics4 questions · ~54 min

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Behavioral & Leadership4 questions · ~54 min

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Execution3 questions · ~41 min

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Technical Fundamentals3 questions · ~41 min

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