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I'm using Stackprof for a performance check of CRuby documents generation. Before this commit, RDoc::TopLevel#text? uses processing time about 6.8%. ~/rdoc$ stackprof stackprof.dump --text --limit 5 ================================== Mode: cpu(1000) Samples: 42712 (0.47% miss rate) GC: 6066 (14.20%) ================================== TOTAL (pct) SAMPLES (pct) FRAME 6066 (14.2%) 6066 (14.2%) (garbage collection) 2892 (6.8%) 2892 (6.8%) RDoc::TopLevel#text? 14059 (32.9%) 2379 (5.6%) RDoc::Generator::Darkfish#generate_class 3015 (7.1%) 1389 (3.3%) Ripper::Lexer#lex 1265 (3.0%) 1265 (3.0%) Ripper::Lexer::State#initialize After this commit, processing time of RDoc::TopLevel#text? is reduced to 0.1%. ~/rdoc$ stackprof stackprof.dump --method 'RDoc::TopLevel#text?' RDoc::TopLevel#text? (/home/aycabta/rdoc/lib/rdoc/top_level.rb:274) samples: 20 self (0.1%) / 20 total (0.1%) callers: 17 ( 85.0%) RDoc::Generator::Darkfish#generate_page 2 ( 10.0%) RDoc::Store#add_file 1 ( 5.0%) RDoc::Store#complete
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