[PERFORM] WAL log performance/efficiency question

2007-05-17 Thread Keaton Adams
I sent this to pgsql-admin but didn't receive a response. Would this be a WAL log performance/efficiency issue? Thanks, Keaton Given these postgresql.conf settings: #--- # WRITE AHEAD LOG #

Re: [PERFORM] WAL log performance/efficiency question

2007-05-17 Thread Keaton Adams
ks for the info, -Keaton On Thu, 2007-05-17 at 15:23 +0100, Heikki Linnakangas wrote: > Keaton Adams wrote: > > Using an 8K data page: > > > > 8K data page (8192 bytes) > > Less page header and row overhead leaves ~8000 bytes > > At 100 bytes per row = ~80 rows/pag

Re: [PERFORM] WAL log performance/efficiency question

2007-05-17 Thread Keaton Adams
overhead leaves ~8000 bytes > At 100 bytes per row = ~80 rows/page > Rows loaded: 250,000 / 80 = 3125 data pages * 8192 = 25,600,000 > bytes / 1048576 = ~ 24.4 MB of data page space. > On Thu, 2007-05-17 at 08:04 -0600, Keaton Adams wrote: > I sent this to pgsql-admin but didn'