{"action":"created","issue":{"url":"https://api.github.com/repos/apache/trafficserver/issues/2279","repository_url":"https://api.github.com/repos/apache/trafficserver","labels_url":"https://api.github.com/repos/apache/trafficserver/issues/2279/labels{/name}","comments_url":"https://api.github.com/repos/apache/trafficserver/issues/2279/comments","events_url":"https://api.github.com/repos/apache/trafficserver/issues/2279/events","html_url":"https://github.com/apache/trafficserver/issues/2279","id":243628891,"node_id":"MDU6SXNzdWUyNDM2Mjg4OTE=","number":2279,"title":"when in high concurrent scenarios，the rt will be high even if all the request are mem hit","user":{"login":"Triater","id":1321961,"node_id":"MDQ6VXNlcjEzMjE5NjE=","avatar_url":"https://avatars2.githubusercontent.com/u/1321961?v=4","gravatar_id":"","url":"https://api.github.com/users/Triater","html_url":"https://github.com/Triater","followers_url":"https://api.github.com/users/Triater/followers","following_url":"https://api.github.com/users/Triater/following{/other_user}","gists_url":"https://api.github.com/users/Triater/gists{/gist_id}","starred_url":"https://api.github.com/users/Triater/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/Triater/subscriptions","organizations_url":"https://api.github.com/users/Triater/orgs","repos_url":"https://api.github.com/users/Triater/repos","events_url":"https://api.github.com/users/Triater/events{/privacy}","received_events_url":"https://api.github.com/users/Triater/received_events","type":"User","site_admin":false},"labels":[{"id":551674950,"node_id":"MDU6TGFiZWw1NTE2NzQ5NTA=","url":"https://api.github.com/repos/apache/trafficserver/labels/Performance","name":"Performance","color":"b60205","default":false}],"state":"closed","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":5,"created_at":"2017-07-18T07:49:49Z","updated_at":"2019-05-22T18:31:40Z","closed_at":"2019-05-22T18:31:40Z","author_association":"NONE","body":"I use trafficserver 7.0.0 on centos6.5, only use cachekey plugin. even when all requests are mem hit, the rt is still very high. how can I find the reason to optimize?\r\n\r\nbelow is the squid.log:\r\n\r\n![snip20170718_67](https://user-images.githubusercontent.com/1321961/28311578-add0c8f4-6be2-11e7-8a0f-7d35c1d16932.png)\r\n\r\n\r\n\r\n\r\n\r\n\r\n"},"comment":{"url":"https://api.github.com/repos/apache/trafficserver/issues/comments/494914191","html_url":"https://github.com/apache/trafficserver/issues/2279#issuecomment-494914191","issue_url":"https://api.github.com/repos/apache/trafficserver/issues/2279","id":494914191,"node_id":"MDEyOklzc3VlQ29tbWVudDQ5NDkxNDE5MQ==","user":{"login":"bryancall","id":216749,"node_id":"MDQ6VXNlcjIxNjc0OQ==","avatar_url":"https://avatars3.githubusercontent.com/u/216749?v=4","gravatar_id":"","url":"https://api.github.com/users/bryancall","html_url":"https://github.com/bryancall","followers_url":"https://api.github.com/users/bryancall/followers","following_url":"https://api.github.com/users/bryancall/following{/other_user}","gists_url":"https://api.github.com/users/bryancall/gists{/gist_id}","starred_url":"https://api.github.com/users/bryancall/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/bryancall/subscriptions","organizations_url":"https://api.github.com/users/bryancall/orgs","repos_url":"https://api.github.com/users/bryancall/repos","events_url":"https://api.github.com/users/bryancall/events{/privacy}","received_events_url":"https://api.github.com/users/bryancall/received_events","type":"User","site_admin":false},"created_at":"2019-05-22T18:31:40Z","updated_at":"2019-05-22T18:31:40Z","author_association":"CONTRIBUTOR","body":"It looks like you are benchmarking with 1 URL.  This would have lock contention on 1 lock.  You can benchmark with multiple URLs and configure volume.config to have multiple volumes."}}
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