vacuum_cost_page_dirty

The estimated cost charged when vacuum modifies a block that was previously clean. It represents the extra I/O required to flush the dirty block out to disk again. The default value is 20.

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

8.0 8.1 8.2 8.3 8.4 9.0 9.1 9.2 9.3 9.4 9.5 9.6 10 11 12 13 14 15 16 17 18 19 20

boot val: 20
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_dirty
short desc: Vacuum cost for a page dirtied by vacuum.
source: pg-settings-source-snapshot
unit: Unknown
vartype: integer

Definition PG 18

The estimated cost charged when vacuum modifies a block that was previously clean. It represents the extra I/O required to flush the dirty block out to disk again. The default value is 20.

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Complete source facts

doc html

<p>
         The estimated cost charged when vacuum modifies a block that was
         previously clean. It represents the extra I/O required to
         flush the dirty block out to disk again. The default value is
         <code class="literal">20</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

Original manual reference

Full definition and evidence JSON

Definition sources

center · PostgreSQL 18 · wiki-repair-20261023:d1b3b58120286498bd8eff00890470550818cf2143593138ab12bb79d7712af4

Text language: en · wiki-repair-20261023:d1b3b58120286498bd8eff00890470550818cf2143593138ab12bb79d7712af4