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 |