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13fe77dd2b
String#casecmp? folds both operands with a Unicode case fold, allocating two new strings, and compares the results. For ASCII-only strings, Unicode case folding is equivalent to ASCII case-insensitive comparison, so the operands can be compared byte-by-byte without allocating anything.
28 lines
991 B
YAML
28 lines
991 B
YAML
prelude: |
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lstr1 = [*"a".."z",*"0".."9"].join("")
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lstr10 = lstr1 * 10
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lstr100 = lstr10 * 10
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lstr1000 = lstr100 * 10
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lnonascii1 = [*"\u{e0}".."\u{ff}"].join("")
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lnonascii10 = lnonascii1 * 10
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lnonascii100 = lnonascii10 * 10
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lnonascii1000 = lnonascii100 * 10
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ustr1 = [*"A".."Z",*"0".."9"].join("")
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ustr10 = ustr1 * 10
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ustr100 = ustr10 * 10
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ustr1000 = ustr100 * 10
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unonascii1 = [*"\u{c0}".."\u{df}"].join("")
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unonascii10 = unonascii1 * 10
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unonascii100 = unonascii10 * 10
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unonascii1000 = unonascii100 * 10
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GC.disable # GC causes a lot of variance
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benchmark:
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casecmp_p-1: lstr1.casecmp?(ustr1)
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casecmp_p-10: lstr10.casecmp?(ustr10)
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casecmp_p-100: lstr100.casecmp?(ustr100)
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casecmp_p-1000: lstr1000.casecmp?(ustr1000)
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casecmp_p-nonascii1: lnonascii1.casecmp?(unonascii1)
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casecmp_p-nonascii10: lnonascii10.casecmp?(unonascii10)
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casecmp_p-nonascii100: lnonascii100.casecmp?(unonascii100)
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casecmp_p-nonascii1000: lnonascii1000.casecmp?(unonascii1000)
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