Mari Imaizumi
Mari Imaizumi
  • @ima1zumi

Software engineer at ESM, Inc. 👾

String Meets Encoding

Ruby's String has Encoding, which allows for very flexible character encoding. What is the trade-off for that flexibility? I recently looked at the bottleneck in and found that in one file with Encoding CP932, 30% of the processing time was spent on String#split. From the perspective of optimizing String#split, we will explain the relationship between String and Encoding in Ruby, how String knows its own Encoding, and which process is the bottleneck. Then we will discuss approaches toward faster encoding.

Presentation Material

Recorded video