On 6/18/06 10:48 PM, "Tom Lane" <tgl@xxxxxxxxxxxxx> wrote: >> My database reload is currently taking about 6 hours to load the data, 42 >> hours to reindex, and about another 40 hours or so to check the foreign key >> constraints (about 1.2 billion rows). > > What PG version is this, and what have you got maintenance_work_mem set to? > Undersized m_w_m would hurt both index build and FK checking ... Sorry, forgot that info.. PG is 8.1.4 (I'm testing an upgrade from 7.3.4 to 8.1.4). maintenance_work_mem is set to 983025 - 1.5 times the previous value of 655350. Current RSS of postmaster is about 1.3 GB. System memory is 2GB (would like more, but...). Data is on one array (hardware RAID 5 of eight 73 GB 10k SCSI drives), indexes on another (hardware RAID 5 of five 15K 146 GB SCSI drives on a separate channel), and pg_xlog on a third RAID 1 on a third channel). There are two 2.4 GHz Xeon processors). Wes
