[GitHub] [pulsar] merlimat opened a new pull request #4197: Avoid payload copy when inserting into managed ledger cache

[GitBox <gi...@apache.org>]

merlimat opened a new pull request #4197: Avoid payload copy when inserting into managed ledger cache
URL: https://github.com/apache/pulsar/pull/4197
 
 
   ### Motivation
   
   After #4066, we now have a strict upper bound for the time spent in cache by entries. Since this was the principal reason to make a copy when inserting into the cache, we can now avoid that data copy and just increment the refcount on the same buffer.
   
   Leaving it as an option to fallback to the original behavior, just in case there is any unforeseen regression in behavior under particular conditions.

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