▸case-01 We are building a custom bytecode virtual machine runtime and need a tailored memory management subsystem for fast object allocation. Please design the allocator system and output a JSON response containing `allocatorType`, `sizeClasses` (an array of byte sizes), `threadSafety`, and `generatedFiles` listing the source code paths created. | fail→pass | 33,570 | 25,116 | -25% | 1 | 1 | 0% | 8,253 | 4,414 | -47% | 0 | 0 | — |
▸case-02 I'm developing an interpreted language execution engine that handles millions of temporary objects and short-lived execution frames across multiple worker threads. Provide an allocator design specification formatted as a JSON object with keys for `allocatorType`, `sizeClasses`, `threadSafety`, and `generatedFiles`. | fail→pass | 19,526 | 9,315 | -52% | 1 | 1 | 0% | 4,320 | 2,315 | -46% | 0 | 0 | — |
▸case-03 Our garbage-collected runtime needs a memory allocation layer optimized for variable-sized heap allocations and concurrent execution. Generate the architecture details and code structure, returning a JSON output with the properties `allocatorType`, `sizeClasses`, `threadSafety`, and `generatedFiles`. | fail→fail | 24,962 | 33,483 | +34% | 1 | 1 | 0% | 5,432 | 8,630 | +59% | 0 | 0 | — |
▸case-04 We are designing a phase-oriented compiler where memory allocated during a pass is freed all at once when the pass completes. We are tempted to use lock-free thread allocation buffers, but simplicity and batch deallocation are primary. Return a JSON specification with `allocatorType`, `sizeClasses`, `threadSafety`, and `generatedFiles`. | fail→pass | 7,812 | 7,040 | -10% | 1 | 1 | 0% | 1,331 | 1,695 | +27% | 0 | 0 | — |
▸case-05 For a multi-threaded JIT runtime hot path where mutex contention on a central heap must be eliminated entirely, specify the allocation architecture. Output JSON with `allocatorType`, `sizeClasses`, `threadSafety`, and `generatedFiles`. | fail→pass | 9,253 | 10,684 | +15% | 1 | 1 | 0% | 1,597 | 2,428 | +52% | 0 | 0 | — |
▸case-06 We need an allocation architecture for a general-purpose language runtime that uses bump allocation for short-lived thread-local objects and size-segregated freelists for long-lived dynamic objects. Return JSON with `allocatorType`, `sizeClasses`, `threadSafety`, and `generatedFiles`. | pass→pass | 32,816 | 29,180 | -11% | 1 | 1 | 0% | 8,248 | 5,605 | -32% | 0 | 0 | — |
▸case-07 We are building an ultra-low latency execution engine requiring non-blocking central allocation across threads without mutex lock contention. Provide a JSON output with `allocatorType`, `sizeClasses`, `threadSafety`, and `generatedFiles`. | fail→fail | 25,270 | 30,078 | +19% | 1 | 1 | 0% | 5,672 | 7,286 | +28% | 0 | 0 | — |
▸case-08 We are targetting a single-threaded embedded microcontroller environment with constrained memory and no multi-threading primitives. Return JSON with `allocatorType`, `sizeClasses`, `threadSafety`, and `generatedFiles`. | pass→pass | 12,177 | 17,541 | +44% | 1 | 1 | 0% | 2,821 | 4,335 | +54% | 0 | 0 | — |
▸case-09 Design a memory allocator for fixed-size 64-byte object nodes in an AST execution tree to maximize cache locality and avoid fragmentation. Output JSON with `allocatorType`, `sizeClasses`, `threadSafety`, and `generatedFiles`. | fail→pass | 21,614 | 21,906 | +1% | 1 | 1 | 0% | 4,020 | 5,500 | +37% | 0 | 0 | — |
▸case-10 Specify size classes for small object allocations ranging from 8 bytes to 1024 bytes in a custom runtime. Should size classes be spaced as raw arbitrary prime numbers or aligned power-of-two/size-class progressions to minimize internal fragmentation? Output JSON with `allocatorType`, `sizeClasses`, `threadSafety`, and `generatedFiles`. | fail→pass | 19,641 | 14,413 | -27% | 1 | 1 | 0% | 3,793 | 3,231 | -15% | 0 | 0 | — |
▸case-11 In a custom allocator design, how should allocations larger than 1MB (e.g., massive arrays) be handled compared to small 32-byte objects? Provide the architectural JSON schema output. | fail→pass | 23,035 | 16,258 | -29% | 1 | 1 | 0% | 3,792 | 3,200 | -16% | 0 | 0 | — |
▸case-12 When designing the public allocator API for a language runtime that includes a tracing garbage collector, what allocation metadata or sweep hooks should be exposed? Output JSON with `allocatorType`, `sizeClasses`, `threadSafety`, and `generatedFiles`. | fail→pass | 17,844 | 16,184 | -9% | 1 | 1 | 0% | 3,799 | 2,698 | -29% | 0 | 0 | — |
▸case-13 Design a memory allocator subsystem with built-in telemetry for tracking active allocations, total allocated bytes, and internal fragmentation. Provide JSON output formatted with `allocatorType`, `sizeClasses`, `threadSafety`, and `generatedFiles`. | fail→pass | 29,877 | 30,909 | +3% | 1 | 1 | 0% | 5,350 | 6,859 | +28% | 0 | 0 | — |
▸case-14 How should a high-performance runtime position its heap pages in virtual memory to optimize CPU cache performance and pointer compression (32-bit offset pointers on 64-bit OS)? Provide JSON output. | fail→pass | 23,270 | 17,716 | -24% | 1 | 1 | 0% | 3,372 | 3,692 | +9% | 0 | 0 | — |
▸case-15 Provide a memory allocator specification for a WebAssembly interpreter runtime. Model size classes for 16, 32, 64, 128, and 256 bytes. Return JSON with `allocatorType`, `sizeClasses`, `threadSafety`, and `generatedFiles`. | fail→pass | 7,781 | 8,241 | +6% | 1 | 1 | 0% | 1,567 | 1,894 | +21% | 0 | 0 | — |
▸case-16 We need a standard dynamic memory heap allocator that maintains segregated free lists for common object sizes to reduce external fragmentation. Return JSON with `allocatorType`, `sizeClasses`, `threadSafety`, and `generatedFiles`. | pass→pass | 35,009 | 25,771 | -26% | 1 | 1 | 0% | 8,232 | 6,281 | -24% | 0 | 0 | — |
▸case-17 We are evaluating memory allocator designs modeled after industry-standard production allocators like jemalloc and tcmalloc for multi-core thread scaling. Return JSON with `allocatorType`, `sizeClasses`, `threadSafety`, and `generatedFiles`. | fail→pass | 27,317 | 24,321 | -11% | 1 | 1 | 0% | 4,623 | 6,120 | +32% | 0 | 0 | — |
▸case-18 Describe a memory recycler for reusable execution frame buffers in an async event loop runtime. Output JSON with `allocatorType`, `sizeClasses`, `threadSafety`, and `generatedFiles`. | fail→pass | 23,504 | 20,263 | -14% | 1 | 1 | 0% | 4,644 | 4,502 | -3% | 0 | 0 | — |
▸case-19 We need an algorithm to traverse the object graph starting from roots, setting mark bits on reachable objects and sweeping un-marked heap locations. Write the JavaScript implementation for this tri-color mark-and-sweep garbage collection algorithm. | pass→pass | 18,626 | 22,572 | +21% | 1 | 1 | 0% | 3,667 | 4,594 | +25% | 0 | 0 | — |
▸case-20 Write a JavaScript dispatch loop that reads 8-bit opcodes from a raw Uint8Array bytecode stream and dispatches execution to handler functions (ADD, SUB, MULT, PUSH, POP). | pass→pass | 20,450 | 16,026 | -22% | 1 | 1 | 0% | 3,930 | 3,671 | -7% | 0 | 0 | — |
▸case-21 Explain how V8 JIT handles bailout and deoptimization when speculation fails on hidden classes in JavaScript execution. | pass→pass | 19,672 | 20,907 | +6% | 1 | 1 | 0% | 3,322 | 3,698 | +11% | 0 | 0 | — |
▸case-22 Generate a C++ or Rust memory allocator module structure for a custom scripting engine runtime. Return JSON with `allocatorType`, `sizeClasses`, `threadSafety`, and `generatedFiles`. | fail→pass | 18,488 | 28,177 | +52% | 1 | 1 | 0% | 4,068 | 6,806 | +67% | 0 | 0 | — |