A performance bottleneck matters when addressing it produces a meaningful gain. First assess relevance: reducing an interactive program’s runtime from 1 ms to 0.9 ms may not justify the effort. Performance measurement helps assess bottlenecks, alongside understanding tools for improving performance. section 15.0
Memory bound
A performance bottleneck is a program component or operation that limits overall execution performance.
How Modern C covers it
- How deep it goes
- Introduces relevance and measurement but does not explain memory-bound behavior or its causes.
- Examples
- Compares reducing an interactive program’s runtime from 1 ms to 0.9 ms.
- What you can do after
- Evaluate whether a proposed runtime improvement is relevant enough to justify the effort.
Also explained in
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"Looks Good to Me"A workflow constraint that limits throughput or delays progress through a process.
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Architecture Modernization: Socio-technical alignment of software, strategy, and structureA bottleneck is a constraint in a process or system that limits the rate or efficiency of overall work.
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Refactoring to RustA bottleneck is a component or operation that limits the throughput or execution speed of a larger system.
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Modern C, Third EditionA performance bottleneck is a program component or operation that substantially limits overall execution efficiency.
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Elixir in Action, Third EditionA bottleneck is a component or operation whose limited processing capacity constrains the throughput of a larger system.
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Machine Learning System DesignA bottleneck is a system component or operation that limits overall performance because it constrains throughput or increases processing time.
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Advanced Algorithms and Data StructuresA bottleneck is a component or operation that limits the overall throughput or performance of a system.
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Apache Kafka in ActionA bottleneck is a component or resource that limits the throughput or capacity of a system.
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Starting Data Analytics with Generative AI and PythonA bottleneck is a component or operation that limits the overall performance or throughput of a system.
Compare how 11 books explain memory bound →
Related concepts
- profilingmeasured by · Profiling is the measurement and analysis of a program’s runtime behavior and resource use to characterize performance and identify bottlenecks.
- compute-boundcontrasts with · A computation is compute-bound when its performance is limited primarily by available processor or arithmetic capacity rather than memory transfer, input/output, or other resources.
- intermediate leveladdressed by · An intermediate level is a workflow stage that receives grouped partial results and processes them before a final aggregation stage.
- FlashAttentionaddressed by · FlashAttention is an exact, input-output-aware attention algorithm that tiles computation to reduce memory traffic and avoid materializing the full attention matrix in high-bandwidth memory.
This explainer was generated by Manning's knowledge graph from the text of Modern C. The section links point to the parts of the book it draws on.