Bump benchmark-ips from 2.7.2 to 2.8.4

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Bumps benchmark-ips from 2.7.2 to 2.8.4.

Changelog

Sourced from benchmark-ips's changelog.

=== 2.8.4 / 2020-12-03

• Bug fix
  • Fixed hold! when results file does not exist.

=== 2.8.3 / 2020-08-28

• Bug fix
  • Fixed inaccuracy caused by integer overflows.

=== 2.8.2 / 2020-05-04

• Bug fix
  • Fixed problems with Manifest.txt.
  • Empty interim results files are ignored.

=== 2.8.0 / 2020-05-01

• Feature

  • Allow running with empty ips block.
  • Added save! method for saving interim results.
  • Run more than just 1 cycle during warmup to reduce overhead.
  • Optimized Job::Entry hot-path for fairer results on JRuby/TruffleRuby.

• Bug fix

  • Removed the warmup section if set to 0.
  • Added some RDoc docs.
  • Added some examples in examples/

Commits

• See full diff in compare view

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