Sorry the description was not completely clear
The durations metrics are still updated, but not the operations count ones
In 2 metrics at 10 minutes of interval:
vsellier@saam ~ % ls -al /tmp/m[12] -rw-r--r-- 1 vsellier vsellier 176850 Mar 30 07:25 /tmp/m1 -rw-r--r-- 1 vsellier vsellier 176846 Mar 30 07:34 /tmp/m2