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Runtime · hard

39. Garbage Collection and Performance

Allocation, escape analysis and GOGC.

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Go's concurrent GC targets low pause times; throughput is tuned with GOGC or a soft memory limit. Reduce pressure by avoiding unnecessary allocations, reusing buffers with sync.Pool, preallocating slices and keeping values on the stack when escape analysis allows.

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Check your understanding

  1. 1. Which tool shows why a value escapes to the heap?

  2. 2. sync.Pool exists to…

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