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Posted to github@trafficserver.apache.org by GitBox <gi...@apache.org> on 2021/04/22 07:16:43 UTC

[GitHub] [trafficserver] maskit commented on pull request #7719: Fix cpu utilization problem in session cache

maskit commented on pull request #7719:
URL: https://github.com/apache/trafficserver/pull/7719#issuecomment-824602488


   > std::unordered_map always takes up around 4% cpu whenever it's paired with other data structures, but by itself it's not even showing up in the perf top list.
   
   Are you saying erasing a session by key (a session id obtained from the other data structure) in removeOldestSession was the heavy part? It implies find operation to get a cached session is heavy too, but you don't see it on the perf top list?
   
   


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