| 1 | #!/usr/bin/env bash
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| 2 | #
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| 3 | # Test how long it takes to read many files
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| 4 |
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| 5 | big-stream() {
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| 6 | cat */*.py
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| 7 | # Python messes up here!
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| 8 | #*/*/*.py
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| 9 | }
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| 10 |
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| 11 | compare() {
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| 12 | echo '=== python3'
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| 13 |
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| 14 | # Buffered I/O is much faster
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| 15 | time big-stream | python3 -c '
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| 16 | import sys
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| 17 | i = 0
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| 18 | for line in sys.stdin:
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| 19 | i += 1
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| 20 | print(i)
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| 21 | '
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| 22 |
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| 23 | echo '=== awk'
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| 24 | time big-stream | awk '{ i += 1 } END { print i } '
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| 25 |
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| 26 | for sh in dash bash; do
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| 27 | echo === $sh
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| 28 |
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| 29 | time big-stream | $sh -c '
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| 30 | i=0
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| 31 | while read -r line; do
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| 32 | i=$(( i + 1 ))
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| 33 | done
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| 34 | echo $i
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| 35 | '
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| 36 | done
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| 37 |
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| 38 |
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| 39 | }
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| 40 |
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| 41 | "$@"
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| 42 |
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