06 Nov, 2009
New Relic: “Mongrel count” vs “Instance count”
New Relic is the best way to track a Rails app’s performance, no question, but it still confounds me at times. Here’s something I learned today.
New Relic reports the number of instances per host; until today, I was reading this as the size of our mongrel pool.
It’s not, actually—it’s more like the ideal size of [...]
