Brian Geffon created TS-3178:
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Summary: ProxyAllocator improvements
Key: TS-3178
URL: https://issues.apache.org/jira/browse/TS-3178
Project: Traffic Server
Issue Type: Improvement
Components: Core
Reporter: Brian Geffon
Currently when a ProxyAllocator (Thread Local) has more than a
configurable number of elements it will return them one-by-one to a
ClassAllocator (Global Freelist). Returning every item in this fashion is
inefficient as we'll likely need more items in the future. Therefore we
should maintain a low watermark (a minimum number) of items that should be in a
ProxyAllocator at any one time. When the number of elements reaches high
watermark, the free up is triggers to keep it below the low
watermark. Additionally, the free should be a block free instead of
one-by-one as we can reduce several hundred compare-and-swap operations to a
single CAS
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