Go gc gctrace 1 2 GODEBUG='gctrace=1' go run main.go 1 gc 15 @941.135s 0%: 0.058+91+0.002 ms clock, 0.058+0.35/26/61+0.002 ms cpu, 75->75->38 MB, 77 MB goal, 1 P gc # @#s #%: #+#+# ms clock, #+#/#/#+# ms cpu, #->#-># MB, # MB goal, # P where the fields are as follows: gc # the GC number, incremented at each GC @#s time in seconds since program start #% percentage of time