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Memory Dump Analysis Anthology, Volume 7 by Dmitry Vostokov

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Sparse Trace

Sometimes we don't see anything in the trace or see very little because particular source code fragment was not covered by trace statements (see also PLOTs, Volume 5, page 272):

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This pattern Sparse Trace is different from Missing Component (Volume 4, page 342) pattern where some modules are not included for tracing explicitly although there is tracing code there or Visibility Limit (page 301) pattern where tracing is intrinsically impossible. Often technical support and escalation engineers request to add more trace statements and software engineers extend tracing coverage iteratively as needed.

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