Running map implementations on a large list to see memory consumption

no_tco_list.exs

list = Enum.to_list(1..100_000_000)

MyMap.map_body(list, fn(i) -> i + 1 end)

tco_list.exs

list = Enum.to_list(1..100_000_000)

MyMap.map_tco(list, fn(i) -> i + 1 end)

z_results

tobi@happy ~/github/elixir_playground $ /usr/bin/time -v mix run scripts/tco_list.exs 
	Command being timed: "mix run scripts/tco_list.exs"
	User time (seconds): 10.00
	System time (seconds): 1.21
	Percent of CPU this job got: 99%
	Elapsed (wall clock) time (h:mm:ss or m:ss): 0:11.22
	Average shared text size (kbytes): 0
	Average unshared data size (kbytes): 0
	Average stack size (kbytes): 0
	Average total size (kbytes): 0
	Maximum resident set size (kbytes): 13052492
	Average resident set size (kbytes): 0
	Major (requiring I/O) page faults: 33
	Minor (reclaiming a frame) page faults: 112706
	Voluntary context switches: 20743
	Involuntary context switches: 1006
	Swaps: 0
	File system inputs: 13088
	File system outputs: 24
	Socket messages sent: 0
	Socket messages received: 0
	Signals delivered: 0
	Page size (bytes): 4096
	Exit status: 0
tobi@happy ~/github/elixir_playground $ /usr/bin/time -v mix run scripts/no_tco_list.exs 
	Command being timed: "mix run scripts/no_tco_list.exs"
	User time (seconds): 9.02
	System time (seconds): 0.83
	Percent of CPU this job got: 100%
	Elapsed (wall clock) time (h:mm:ss or m:ss): 0:09.81
	Average shared text size (kbytes): 0
	Average unshared data size (kbytes): 0
	Average stack size (kbytes): 0
	Average total size (kbytes): 0
	Maximum resident set size (kbytes): 11511968
	Average resident set size (kbytes): 0
	Major (requiring I/O) page faults: 1
	Minor (reclaiming a frame) page faults: 40774
	Voluntary context switches: 20006
	Involuntary context switches: 122
	Swaps: 0
	File system inputs: 8
	File system outputs: 24
	Socket messages sent: 0
	Socket messages received: 0
	Signals delivered: 0
	Page size (bytes): 4096
	Exit status: 0