Optimize SAX2Parser#get_namespace

[naitoh]

RUBYLIB= BUNDLER_ORIG_RUBYLIB= /Users/naitoh/.rbenv/versions/3.3.4/bin/ruby -v -S benchmark-driver /Users/naitoh/ghq/github.com/naitoh/rexml/benchmark/parse.yaml ruby 3.3.4 (2024-07-09 revision be1089c8ec) [arm64-darwin22] Calculating ------------------------------------- before after before(YJIT) after(YJIT) dom 18.085 17.677 33.086 32.778 i/s - 100.000 times in 5.529372s 5.657097s 3.022471s 3.050832s sax 25.450 26.182 44.797 47.916 i/s - 100.000 times in 3.929249s 3.819475s 2.232309s 2.086982s pull 29.160 29.089 55.407 53.531 i/s - 100.000 times in 3.429304s 3.437757s 1.804825s 1.868072s stream 29.137 29.055 52.780 51.368 i/s - 100.000 times in 3.432007s 3.441754s 1.894649s 1.946724s Comparison: dom before(YJIT): 33.1 i/s after(YJIT): 32.8 i/s - 1.01x slower before: 18.1 i/s - 1.83x slower after: 17.7 i/s - 1.87x slower sax after(YJIT): 47.9 i/s before(YJIT): 44.8 i/s - 1.07x slower after: 26.2 i/s - 1.83x slower before: 25.5 i/s - 1.88x slower pull before(YJIT): 55.4 i/s after(YJIT): 53.5 i/s - 1.04x slower before: 29.2 i/s - 1.90x slower after: 29.1 i/s - 1.90x slower stream before(YJIT): 52.8 i/s after(YJIT): 51.4 i/s - 1.03x slower before: 29.1 i/s - 1.81x slower after: 29.1 i/s - 1.82x slower 

• sax
  • YJIT=ON : 1.07x faster
  • YJIT=OFF : 1.03x faster

[kou]

Suggested change

	parser.listen(:start_element){|uri, localname, qname, attrs|
	elements << [uri, localname, qname, attrs]
	}
	parser.listen(:start_element) do |uri, localname, qname, attrs|
	elements << [uri, localname, qname, attrs]
	end

[naitoh]

OK.
I see.

[kou]

Suggested change

	parser.listen(:start_element){|uri, localname, qname, attrs|
	elements << [uri, localname, qname, attrs]
	}
	parser.listen(:start_element) do |uri, localname, qname, attrs|
	elements << [uri, localname, qname, attrs]
	end

[naitoh]

OK.
I see.

[kou]

Thanks.