oga/xml at b006289c5f2133462c4c41bb8925f0359a0fd1f6 - oga

History

Yorick Peterse 4fa88fcbde Cache rb_intern/symbol lookups in the lexer. For JRuby this has little to no benefits as it uses strings for method names. However, both MRI and Rubinius will perform a Symbol lookup whenever rb_intern() is called. By doing this once for all callback names and caching the resulting VALUE objects the lexer timings can be reduced by about 25%. In case of the benchmark benchmark/xml/lexer/string_average_bench.rb this means it runs in around 500ms instead of 700ms.	2014-11-22 01:53:37 +01:00
..
Lexer.rl	Cache rb_intern/symbol lookups in the lexer.	2014-11-22 01:53:37 +01:00

Yorick Peterse 4fa88fcbde Cache rb_intern/symbol lookups in the lexer.

For JRuby this has little to no benefits as it uses strings for method names.
However, both MRI and Rubinius will perform a Symbol lookup whenever rb_intern()
is called. By doing this once for all callback names and caching the resulting
VALUE objects the lexer timings can be reduced by about 25%. In case of the
benchmark benchmark/xml/lexer/string_average_bench.rb this means it runs in
around 500ms instead of 700ms.

2014-11-22 01:53:37 +01:00

Lexer.rl

Cache rb_intern/symbol lookups in the lexer.

2014-11-22 01:53:37 +01:00