[chore] Prototype to cache both items and bytes

[bogdandrutu]

No description provided.

[codecov]

Codecov Report

Attention: Patch coverage is 92.30769% with 3 lines in your changes missing coverage. Please review.

Project coverage is 91.62%. Comparing base (f09dad4) to head (9ab3230).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
exporter/exporterhelper/traces_batch.go	90.00%	1 Missing and 2 partials ⚠️

❌ Your patch check has failed because the patch coverage (92.30%) is below the target coverage (95.00%). You can increase the patch coverage or adjust the target coverage.

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #12651      +/-   ##
==========================================
- Coverage   91.63%   91.62%   -0.02%     
==========================================
  Files         479      479              
  Lines       26423    26433      +10     
==========================================
+ Hits        24214    24220       +6     
- Misses       1749     1751       +2     
- Partials      460      462       +2     

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[jmacd]

This is subtle. :-)