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Reduce the maximum value of vacuum_cost_delay and autovacuum_vacuum_cost_delay

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to 100ms (from 1000).  This still seems to be comfortably larger than the
useful range of the parameter, and it should help discourage people from
picking uselessly large values.  Tweak the documentation to recommend small
values, too.  Per discussion of a couple weeks ago.
This commit is contained in:
Tom Lane
2009-02-28 00:10:52 +00:00
parent 07b9936a0f
commit 640796ff41
6 changed files with 61 additions and 53 deletions
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2
src/backend/utils/misc/postgresql.conf.sample
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@ -119,7 +119,7 @@
# - Cost-Based Vacuum Delay -
#vacuum_cost_delay = 0 # 0-1000 milliseconds
#vacuum_cost_delay = 0 # 0-100 milliseconds
#vacuum_cost_page_hit = 1 # 0-10000 credits
#vacuum_cost_page_miss = 10 # 0-10000 credits
#vacuum_cost_page_dirty = 20 # 0-10000 credits