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Running map implementations on a large list to see memory consumption
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| list = Enum.to_list(1..100_000_000) | |
| MyMap.map_body(list, fn(i) -> i + 1 end) |
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| list = Enum.to_list(1..100_000_000) | |
| MyMap.map_tco(list, fn(i) -> i + 1 end) |
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| 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 |
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