Performance Optimization
Profiling, benchmarking, allocator strategies, zero-copy, SIMD, inline, codegen optimization
1Which tool generates flame graphs to visualize performance hotspots in a Rust program?
Which tool generates flame graphs to visualize performance hotspots in a Rust program?
Câu trả lời
cargo-flamegraph is the standard tool for generating flame graphs from profiling data. It uses perf on Linux or dtrace on macOS to collect stack samples, then generates an interactive SVG visualization allowing quick identification of the most CPU-consuming functions.
2Which crate is recommended for writing precise and statistically reliable micro-benchmarks in Rust?
Which crate is recommended for writing precise and statistically reliable micro-benchmarks in Rust?
Câu trả lời
Criterion is the reference crate for benchmarking in Rust. It provides robust statistical analysis, detects performance regressions between runs, generates HTML graphs, and automatically handles warm-up and iteration count to obtain reliable results.
3What does the zero-cost abstraction concept mean in Rust?
What does the zero-cost abstraction concept mean in Rust?
Câu trả lời
Zero-cost abstractions mean that high-level abstractions (iterators, traits, generics) compile to machine code as efficient as manually written low-level code. The abstraction cost exists only at compile time (monomorphization), not at runtime.
Which attribute suggests the Rust compiler to inline a function?
Which Rust compilation option enables the maximum optimization level?
+17 câu hỏi phỏng vấn
Các chủ đề phỏng vấn Rust khác
Rust Basics
Ownership & Borrowing
Structs & Enums
Error Handling
Collections
Modules & Packages
Traits
Generics
Lifetimes
Iterators & Closures
Smart Pointers
Concurrency Basics
async/await
Testing
Cargo & Ecosystem
Pattern Matching
Macros
Serde & Serialization
Unsafe Rust
Advanced Traits
Advanced Lifetimes
Type System
Tokio & Async I/O
Memory Management
Web Frameworks
Database Integration
Rust Design Patterns
Nắm vững Rust cho lần phỏng vấn tiếp theo
Truy cập tất cả câu hỏi, flashcards, bài kiểm tra kỹ thuật, bài tập code review và mô phỏng phỏng vấn.
Bắt đầu miễn phí