Split ram and disk cache hit response times into separate metrics
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Key: TS-149
URL: https://issues.apache.org/jira/browse/TS-149
Project: Traffic Server
Issue Type: New Feature
Components: Cache
Reporter: Anirban
Priority: Minor
Split ram and disk cache hit response times into separate metrics
Original description
by Stephen Bisordi from Yahoo
It appears that the response time for ram cache hits and disk cache hits is
captured as a single metric
(transaction_totaltime.hit_fresh). Would it be possible to split this into two
separate metrics, or to add a ram cache
hit result code to the log to differentiate between ram and disk hits (similar
to Squid's TCP_MEM_HIT)?
This change would allow for quicker troubleshooting of certain issues such as
poor disk performance.
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