Day and night, the postgres stats collector process runs at about 20 MB/sec
output. vmstat shows this:
$ vmstat 2
procs -----------memory---------- ---swap-- -----io---- -system--
----cpu----
r b swpd free buff cache si so bi bo in cs us sy id
wa
0 0 55864 135740 123804 10712928 4 6 445 2642 0 0 5 1
92 2
1 0 55864 134820 123804 10713012 0 0 0 34880 540 338 1 1
98 0
0 0 55864 135820 123812 10712896 0 0 0 20980 545 422 1 1
98 0
iotop(1) shows that it's the stats collector, running at 20 MB/sec.
Is this normal?
Craig