Wiki / Configuration Parameters
vacuum_cost_page_miss
The estimated cost for vacuuming a buffer that has to be read from disk. This represents the effort to lock the buffer pool, lookup the shared hash table, read the desired block in from the disk and scan its content. The default value is 2.
English manual coverage begins with PostgreSQL 7.4. Source history and runtime observations have their own recorded version boundaries.
Reading PG 18·Select a recorded version
- boot val
- 2
- category
- Vacuuming / Cost-Based Vacuum Delay
- context
- user
- doc same as
- Unknown
- documented
- true
- enumvals
- Unknown
- extra desc
- Unknown
- lang
- en
- max val
- 10000
- metadata version
- 18
- min val
- 0
- name
- vacuum_cost_page_miss
- short desc
- Vacuum cost for a page not found in the buffer cache.
- source
- pg-settings-source-snapshot
- unit
- Unknown
- vartype
- integer
Definition PG 18
The estimated cost for vacuuming a buffer that has to be read from
disk. This represents the effort to lock the buffer pool,
lookup the shared hash table, read the desired block in from
the disk and scan its content. The default value is
2.
Compare versions
Complete source facts
doc html
<p>
The estimated cost for vacuuming a buffer that has to be read from
disk. This represents the effort to lock the buffer pool,
lookup the shared hash table, read the desired block in from
the disk and scan its content. The default value is
<code class="literal">2</code>.
</p>documentation revision
{"inputs":[{"file":"runtime-config-vacuum.html","kind":"same-version-reviewed-manual","locale":"en","sha256":"599d3819c5fa60f160ba633df604ee9afd85549ffad2ae2fb0c3132a00d47417","version":"18.7"},{"file":"runtime-config-vacuum.html","kind":"same-version-reviewed-manual","locale":"zh-Hans","sha256":"b835e4b6c446cfdaf673750aba29ba28fc55ef6cc0c531558c1e394fdc05a140","version":"18.7"}],"release":"18.7","runtime_remeasured":false,"source_revision":"pgdoc:b9f0e7232f60f380d642ac9b99226606c254b552"}Source references
Full definition and evidence JSON
Definition sources
center · PostgreSQL 18 · wiki-repair-20261023:8b9f4e32a9cb3a4742ebd42a9237186b45f90fce4406c17e73edeb6af9e49b1e
Text language: en · wiki-repair-20261023:8b9f4e32a9cb3a4742ebd42a9237186b45f90fce4406c17e73edeb6af9e49b1e