Instrument usage stack v15 (totaltime_options)#64

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lfittl wants to merge 9 commits into

instrument-usage-stack-v15-totaltime-opts

Commits on Apr 6, 2026

instrumentation: Use Instrumentation instead of manual buffer tracking
lfittl
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instrumentation: Replace direct changes of pgBufferUsage/pgWalUsage with INSTR_* macros
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instrumentation: Add additional regression tests covering buffer usage
lfittl
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instrumentation: Allocate queryDesc->totaltime in ExecutorStart if needed
lfittl
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Optimize measuring WAL/buffer usage through stack-based instrumentation
lfittl
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instrumentation: Use Instrumentation struct for parallel workers
lfittl
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instrumentation: Optimize ExecProcNodeInstr instructions by inlining
lfittl
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Index scans: Show table buffer accesses separately in EXPLAIN ANALYZE
lfittl
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Add test_session_buffer_usage test module
lfittl
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