TODOs

[jerch]

TODOs:

• implement timeout option
• propagate chrome-timeline options
• cmdline switch for fork
• Cleanup:
  • separate baseline and eval code into submodule
  • reduce globals
  • rename predefined perf classes and mixins
  • predefined Timeline perf class merged with extract mixin

MAYBEs:

• absolute tolerance values
• exclude setting for eval runs
• preconditions for baseline data and evals (early rejects if conditions not met)