500+ quant interview questions for Jane Street, Citadel, Two Sigma, DE Shaw, and other top quantitative finance firms.
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Difficulty: Hard
Category: memory_optimization
Practice quant interview questions from top firms including Jane Street, Citadel, Two Sigma, DE Shaw, and other leading quantitative finance companies.
Topics: region-allocator, arena, gc-free, memory_optimization, bump-pointer, object-graph
High-frequency trading systems generate dense, short-lived object graphs for each transaction, where standard heap allocation leads to performance bottlenecks like lock contention and cache misses. Region (or arena) allocation mitigates this by allocating all objects for a single cycle from a contiguous memory slab, which is then freed in a single O(1) operation. This technique eliminates per-object deallocation overhead and avoids garbage collection pauses, ensuring predictable, low-latency exe
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