Re: Displaying accumulated autovacuum cost
Greg Smith <greg@2ndquadrant.com>
From: Greg Smith <greg@2ndQuadrant.com>
To: pgsql-hackers@postgresql.org
Date: 2011-08-28T09:54:53Z
Lists: pgsql-hackers
Attachments
- vacuum_stats_v4.patch (text/x-patch)
Updated patch cleans up two diff mistakes made when backing out the
progress report feature. The tip-off I screwed up should have been the
absurdly high write rate shown. The usleep was accidentally deleted, so
it was running without cost limits even applying. Here's a good one
instead:
LOG: automatic vacuum of table "pgbench.public.pgbench_accounts": index
scans: 1
pages: 0 removed, 163935 remain
tuples: 2000000 removed, 2928356 remain
buffer usage: 117393 hits, 123351 misses, 102684 dirtied, 2.168
MiB/s write rate
system usage: CPU 2.54s/6.27u sec elapsed 369.99 sec
--
Greg Smith 2ndQuadrant US greg@2ndQuadrant.com Baltimore, MD
PostgreSQL Training, Services, and 24x7 Support www.2ndQuadrant.us