Phase16#5
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Run intagg, intarray, ltree, tsm_system_rows, and tsm_system_time from check-threaded-contrib and check-world-threaded. Make focused contrib threaded targets run component checkprep explicitly so multi-target invocations install every requested extension into the temp tree.
Run pg_buffercache, pg_freespacemap, pg_surgery, pg_walinspect, pgrowlocks, and pgstattuple from check-threaded-contrib and check-world-threaded. Add thread-per-session module metadata for their extension libraries and move the leaves from the Phase 16 exclusion manifest to covered components.
Wire client/offline src/bin TAP leaves and pg_bsd_indent into check-world-threaded via explicit check-threaded-bin and check-threaded-tools targets. Move those check-world leaves from the Phase 16 exclusion manifest to covered components; in this configure their TAP tests remain disabled, matching ordinary check-world behavior.
Run bloom, file_fdw, lo, pg_visibility, tablefunc, and tcn from check-threaded-contrib and check-world-threaded. Add thread-per-session module metadata and move the leaves from Phase 16 exclusions to covered components.
Run contrib/spi under threaded_workers.conf from check-threaded-contrib and check-world-threaded. Cover oid2name and vacuumlo client utility TAP leaves through the threaded contrib aggregate and move all three leaves out of Phase 16 exclusions.
Run test_cloexec, test_int128, and test_json_parser from check-threaded-test-modules and check-world-threaded. Move the standalone program TAP leaves out of Phase 16 exclusions.
Run PL/Sample, SP-GiST name opclass, COPY callback, custom type, and text parser test modules from check-threaded-test-modules. Declare thread-per-session metadata for the newly admitted regression modules and move their leaves out of Phase 16 exclusions.
Run binaryheap, bitmapset, bloomfilter, GIN posting-list, integerset, lfind, radixtree, rbtree, and regex regression modules from check-threaded-test-modules. Declare thread-per-session metadata for those modules, move their leaves out of Phase 16 exclusions, and harden the pooled postmaster-death TAP assertion against transient polling queue depth.
Admit dummy_index_am, test_cplusplusext, test_predtest, test_resowner, and test_saslprep to check-threaded-test-modules. Declare thread-per-session metadata for the modules, make test_resowner's release-order assertion state per-call, and move the leaves from Phase 16 exclusions to covered components.
Run brin, commit_ts, and index test-module leaves from check-threaded-test-modules under threaded_workers.conf. Move the leaves from Phase 16 exclusions to covered components while keeping unsafe_tests excluded after its threaded GUC privilege regression failure.
Run src/test/modules/test_shm_mq from check-threaded-test-modules under threaded_workers.conf and move it from the Phase 16 exclusion manifest to covered components. Accept polling as an idle no-carrier pooled protocol state in the Phase 15 postmaster-death TAP, matching the existing pooled protocol mode predicate and removing a timing-sensitive failure before module coverage runs.
Add Phase 16B shell/reusable-session lifecycle support, fail-closed validation, lifecycle timing instrumentation, and benchmark documentation. Improve pooled protocol parked-session wakeups by starting carriers for ready parked bursts instead of only for new connection queue work. Benchmark evidence: pool_128 on select1_sleep_wake_10ms_prepared reached 0.956x pinned at 136 threads vs 208; pool_128 on select1_sleep_wake_1000ms_prepared reached 0.992x pinned at 108 threads vs 208. Verified with gmake -j18, gmake install prefix=/home/sam/codex-work/mtpg-current/tmp_install, perl -c src/tools/benchmark/mtpg_pgbench_matrix.pl, benchmark runs under /home/sam/codex-work/mtpg-bench-results, and git diff --check.
Optimize pooled protocol receive probing and hot read wake handling, add pressure-aware sticky idle behavior, and keep one ready backend local to the polling carrier. Add same-carrier attach without session GUC rebinding, cheap scheduler counters, and pooled glibc allocator tuning. Extend the pgbench matrix harness with env, cpuset, socket-root, and interleaved lane controls for targeted Phase 16B evidence.
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