# Code Review: HashIdPerf

**URL:** <https://www.ruby-forum.com/t/code-review-hashidperf/170990>\
**Category:** IronRuby\
**Created:** [June 24, 2009, 11:38pm UTC](https://www.ruby-forum.com/t/code-review-hashidperf/170990 "2009-06-24T23:38:22Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![grujildo](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/g/94ad74/32.png) [@grujildo](https://www.ruby-forum.com/u/grujildo)\
**Post date:** [June 24, 2009, 11:38pm UTC](https://www.ruby-forum.com/t/code-review-hashidperf/170990/1 "2009-06-24T23:38:22Z")

</div>

tfpt review “/shelveset:HashIdPerf;REDMOND\tomat”

Fixes hash code implementation for Range and Struct.  
Fixes Kernel#object\_id for large Fixnums.  
Misc perf improvements in strings and arrays.

Tomas