What are the implications of LINQ on system memory fragmentation?
Updated May 16, 2026
Short answer
LINQ can contribute to memory fragmentation due to frequent allocations of iterators and closures.
Deep explanation
Each LINQ operator may create new objects on the heap, especially iterators and lambda closures. In high-throughput systems, this leads to short-lived allocations that increase Gen0 garbage collections and may cause memory fragmentation over time. Although .NET GC handles compaction, excessive allocation patterns can still degrade performance and increase pause times.
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