mysqladmin is working on its own. So pt-stalk tells it to get 3600 samples (-i1 -c3600), but either that program is inexact or pt-stalk is killing it too soon. The other data like -df is inside a loop controlled by pt-stalk, so it's more or less guaranteed to get the number of samples. This loop should also allow mysqladmin to run for the full 3600 seconds, but I guess not. I suppose we could run mysqladmin in the loop too?
mysqladmin is working on its own. So pt-stalk tells it to get 3600 samples (-i1 -c3600), but either that program is inexact or pt-stalk is killing it too soon. The other data like -df is inside a loop controlled by pt-stalk, so it's more or less guaranteed to get the number of samples. This loop should also allow mysqladmin to run for the full 3600 seconds, but I guess not. I suppose we could run mysqladmin in the loop too?