| 1 | #!/usr/bin/env bash
|
| 2 | #
|
| 3 | # Test how long it takes to read many files
|
| 4 |
|
| 5 | big-stream() {
|
| 6 | cat */*.py
|
| 7 | # Python messes up here!
|
| 8 | #*/*/*.py
|
| 9 | }
|
| 10 |
|
| 11 | py3-count() {
|
| 12 | echo '=== python3'
|
| 13 |
|
| 14 | # Buffered I/O is much faster
|
| 15 | time big-stream | python3 -c '
|
| 16 | import sys
|
| 17 | i = 0
|
| 18 | for line in sys.stdin:
|
| 19 | i += 1
|
| 20 | print(i)
|
| 21 | '
|
| 22 | }
|
| 23 |
|
| 24 | awk-count() {
|
| 25 | echo '=== awk'
|
| 26 | time big-stream | awk '{ i += 1 } END { print i } '
|
| 27 | }
|
| 28 |
|
| 29 | ysh-count() {
|
| 30 | echo '=== ysh'
|
| 31 |
|
| 32 | local ysh=_bin/cxx-opt/ysh
|
| 33 | ninja $ysh
|
| 34 |
|
| 35 | # New buffered read!
|
| 36 | time big-stream | $ysh -c '
|
| 37 | var i = 0
|
| 38 | for _ in <> {
|
| 39 | setvar i += 1
|
| 40 | }
|
| 41 | echo $i
|
| 42 | '
|
| 43 | }
|
| 44 |
|
| 45 | compare() {
|
| 46 | py3-count
|
| 47 | echo
|
| 48 |
|
| 49 | awk-count
|
| 50 | echo
|
| 51 |
|
| 52 | ysh-count
|
| 53 | echo
|
| 54 |
|
| 55 | local osh=_bin/cxx-opt/osh
|
| 56 | ninja $osh
|
| 57 |
|
| 58 | for sh in dash bash $osh; do
|
| 59 | echo === $sh
|
| 60 |
|
| 61 | time big-stream | $sh -c '
|
| 62 | i=0
|
| 63 | while read -r line; do
|
| 64 | i=$(( i + 1 ))
|
| 65 | done
|
| 66 | echo $i
|
| 67 | '
|
| 68 | echo
|
| 69 | done
|
| 70 | }
|
| 71 |
|
| 72 | "$@"
|
| 73 |
|