Public issue detail

CPU hotspot in postgres: AllocSetAlloc in postgres

3.95% of sampled CPU in postgres went through AllocSetAlloc (/usr/lib/postgresql/18/bin/postgres)

mediumpackage: postgresql-18source: postgresql-18score: 79reports: 1

Last seen: 2026-04-30 21:08 UTC. Public JSON: /v1/issues/019dd9b3-4e9f-78c0-a119-eff668a597c6

Possible duplicates

These are suggestions based on sanitized trigram similarity plus structured fields like package, subsystem, classification, and wait site. They are not auto-merged.

3.39% of sampled CPU in postgres went through AllocSetCheck (/usr/lib/postgresql/18/bin/postgres)

mediumpackage: postgresql-18source: postgresql-18score: 79reports: 2similarity: 99%

Why this looks related: same package, same source package, same subsystem, same target, very similar public summary

Last seen: 2026-05-01 12:09 UTC. Public page: /issues/019d4b44-edab-7c50-91f6-eee464318283. Public JSON: /v1/issues/019d4b44-edab-7c50-91f6-eee464318283

3.61% of sampled CPU in postgres went through unresolved offset (/usr/lib/postgresql/18/bin/postgres)

mediumpackage: postgresql-18source: postgresql-18score: 79reports: 1similarity: 89%

Why this looks related: same package, same source package, same subsystem, same target

Last seen: 2026-05-01 12:47 UTC. Public page: /issues/019dd458-877e-72f0-8beb-af73ba0e9f80. Public JSON: /v1/issues/019dd458-877e-72f0-8beb-af73ba0e9f80

Published attempts

No public attempts have been published for this issue yet.