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35c04cdc36
* Add form-feed and vertical tab to` trim` defaults * add some initial string-based benchmarking * update to non-const string * do not account for mem times in bench * misc bench fixes to repair reporting times; improve trim tests * ok last one for real..remove (void) casts * finally, swap to more efficient default whitespace order in `trim`
47 lines
1.6 KiB
Plaintext
47 lines
1.6 KiB
Plaintext
module string_trim_wars;
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const String WHITESPACE_TARGET = " \n\t\r\f\va \tbcde\v\f\r\t\n ";
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const String WHITESPACE_NUMERIC_TARGET = " 25290 0969 99a \tbcde12332 34 43 0000";
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fn void initialize_bench() @init
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{
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set_benchmark_warmup_iterations(64);
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set_benchmark_max_iterations(1 << 24);
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}
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macro void trim_bench($trim_str, String $target = WHITESPACE_TARGET) => @pool()
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{
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String s1;
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String s2 = $target.tcopy();
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runtime::@start_benchmark();
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$switch:
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$case @typeis($trim_str, String):
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s1 = s2.trim($trim_str);
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$case @typeis($trim_str, AsciiCharset):
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s1 = s2.trim_charset($trim_str);
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$default: $error "Unable to determine the right String `trim` operation to use.";
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$endswitch
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@volatile_load(s1);
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runtime::@end_benchmark();
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}
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module string_trim_wars @benchmark;
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fn void trim_control() => trim_bench(" "); // only spaces
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fn void trim_whitespace_default() => trim_bench("\t\n\r "); // default set
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fn void trim_whitespace_default_ordered() => trim_bench(" \n\t\r"); // default \w set, but ordered by expected freq
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fn void trim_whitespace_bad() => trim_bench("\f\v\n\t\r "); // bad-perf ordering, all \w
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fn void trim_whitespace_ordered_extended() => trim_bench(" \n\t\r\f\v"); // proposed ordering, all \w
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fn void trim_charset_whitespace() => trim_bench(ascii::WHITESPACE_SET); // use charset, all \w
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fn void trim_many() => trim_bench(" \n\t\r\f\v0123456789", WHITESPACE_NUMERIC_TARGET); // ordered, all \w + num
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fn void trim_charset_many() => trim_bench(ascii::WHITESPACE_SET | ascii::NUMBER_SET, WHITESPACE_NUMERIC_TARGET); // set, all \w + num
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