Just wondering if my 'Perceived' feeling that since implementing slony for master/slave replication of select tables, my master database performance is getting slower.
I'm constantly seeing a very high amount of IO wait. ~40-80 according to vmstat 1 and according to atop. (hdb/hdc = raid1 mirror) DSK | hdb | busy 83% | read 1052 | write 50 | avio 7 ms | DSK | hdc | busy 81% | read 1248 | write 49 | avio 6 ms | ---------------------------(end of broadcast)--------------------------- TIP 5: don't forget to increase your free space map settings