OTLP Exporter - reuse buffers #3123
Description
OTLP Exporters are quite heavy in terms of allocations today.
In-Memory Log/Span/Metric is converted to tonic/proto Structs, which requires ownership and forces clone.
This is serialized into vec
The compression (in http), is done to a new vec
The ownership of the vec is passed to exporting client, forcing re-creation of it for each export.
Opening an issue to investigate and improve this.
Related: #2485