On Mon, Mar 24, 2014 at 9:02 PM, Amit Kapila <amit.kapil...@gmail.com> wrote: > MarkBufferDirty() always increment BufferUsage counter > (shared_blks_dirtied) for dirty blocks whenever it dirties any > block, whereas same is not true for MarkBufferDirtyHint(). > Is there any particular reason for not incrementing > shared_blks_dirtied in MarkBufferDirtyHint()?
Hmm, I think that's a bug, dating back to this commit: commit 2254367435fcc4a31cc3b6d8324e33c5c30f265a Author: Robert Haas <rh...@postgresql.org> Date: Wed Feb 22 20:33:05 2012 -0500 Make EXPLAIN (BUFFERS) track blocks dirtied, as well as those written. Also expose the new counters through pg_stat_statements. Patch by me. Review by Fujii Masao and Greg Smith. -- Robert Haas EnterpriseDB: http://www.enterprisedb.com The Enterprise PostgreSQL Company -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers