RosettaCodeData/Task/Time-a-function/Icon/time-a-function-1.icon

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procedure timef(f) #: time a function f
local gcol,alloc,used,size,runtime,header,x,i
title := ["","total","static","string","block"] # headings
collect() # start with collected memory (before baseline)
every put(gcol := [], -&collections) # baseline collections count
every put(alloc := [], -&allocated) # . total allocated space by region
every put(used := [], -&storage) # . currently used space by region - no total
every put(size := [], -&regions) # . current size of regions - no total
write("Performance and Timing measurement for ",image(f),":")
runtime := &time # base time
f()
write("Execution time=",&time-runtime," ms.")
every (i := 0, x := &collections) do gcol[i +:= 1] +:= x
every (i := 0, x := &allocated ) do alloc[i +:= 1] +:= x
every (i := 0, x := &storage ) do used[i +:= 1] +:= x
every (i := 0, x := &regions ) do size[i +:= 1] +:= x
push(gcol,"garbage collections:")
push(alloc,"memory allocated:")
push(used,"N/A","currently used:")
push(size,"N/A","current size:")
write("Memory Region and Garbage Collection Summary (delta):")
every (i := 0) <:= *!(title|gcol|alloc|used|size)
every x := (title|gcol|alloc|used|size) do {
f := left
every writes(f(!x,i + 3)) do f := right
write()
}
write("Note: static region values should be zero and may not be meaningful.")
return
end