Adam Kocoloski created COUCHDB-2724:
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Summary: Batch rows in streaming responses to improve throughput
Key: COUCHDB-2724
URL: https://issues.apache.org/jira/browse/COUCHDB-2724
Project: CouchDB
Issue Type: Improvement
Security Level: public (Regular issues)
Components: Database Core, HTTP Interface
Reporter: Adam Kocoloski
[~tonysun83] showed me some profiling of the {{_changes}} feed which indicated
that the coordinator process was spending about 1/3 of its time executing
inside {{send_delayed_chunk}}. We can reduce the number of invocations of this
function by buffering individual rows until we reach a (configurable) threshold
for sending the data out the wire.
We'll of course want to be careful about continuous feeds; if we're in the
"slow drip" portion of the feed we'll obviously want to emit right away instead
of adding latency unnecessarily.
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