Reuse keyvalues #1165
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Reuse keyvalues #1165
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mdisibio
requested review from
annanay25,
dgzlopes,
joe-elliott,
kvrhdn,
mapno and
zalegrala
as code owners
annanay25
approved these changes
Dec 10, 2021
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What this PR does:
This PR reduces the file size of search data by 30-40% by caching/reusing identical KeyValues structs across traces in a page of data. I.e. each trace with "service.name=[x, y, z]" throughout a page points to the same underlying bytes, instead of encoding it for every trace. This optimization is transparent to the rest of tempo and is forwards/backwards compatible (i.e. older versions of tempo can read this optimized buffer w/o issue).
Which issue(s) this PR fixes:
Fixes n/a
Checklist
CHANGELOG.mdupdated - the order of entries should be[CHANGE],[FEATURE],[ENHANCEMENT],[BUGFIX]