{"action":"created","issue":{"url":"https://api.github.com/repos/golang/go/issues/5683","repository_url":"https://api.github.com/repos/golang/go","labels_url":"https://api.github.com/repos/golang/go/issues/5683/labels{/name}","comments_url":"https://api.github.com/repos/golang/go/issues/5683/comments","events_url":"https://api.github.com/repos/golang/go/issues/5683/events","html_url":"https://github.com/golang/go/issues/5683","id":51284021,"node_id":"MDU6SXNzdWU1MTI4NDAyMQ==","number":5683,"title":"encoding/json: performance slower than expected","user":{"login":"gopherbot","id":8566911,"node_id":"MDQ6VXNlcjg1NjY5MTE=","avatar_url":"https://avatars1.githubusercontent.com/u/8566911?v=4","gravatar_id":"","url":"https://api.github.com/users/gopherbot","html_url":"https://github.com/gopherbot","followers_url":"https://api.github.com/users/gopherbot/followers","following_url":"https://api.github.com/users/gopherbot/following{/other_user}","gists_url":"https://api.github.com/users/gopherbot/gists{/gist_id}","starred_url":"https://api.github.com/users/gopherbot/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/gopherbot/subscriptions","organizations_url":"https://api.github.com/users/gopherbot/orgs","repos_url":"https://api.github.com/users/gopherbot/repos","events_url":"https://api.github.com/users/gopherbot/events{/privacy}","received_events_url":"https://api.github.com/users/gopherbot/received_events","type":"User","site_admin":false},"labels":[{"id":150880191,"node_id":"MDU6TGFiZWwxNTA4ODAxOTE=","url":"https://api.github.com/repos/golang/go/labels/Performance","name":"Performance","color":"ededed","default":false}],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":{"url":"https://api.github.com/repos/golang/go/milestones/6","html_url":"https://github.com/golang/go/milestone/6","labels_url":"https://api.github.com/repos/golang/go/milestones/6/labels","id":1055141,"node_id":"MDk6TWlsZXN0b25lMTA1NTE0MQ==","number":6,"title":"Unplanned","description":"No plan to fix in any specific release.\r\n","creator":{"login":"rsc","id":104030,"node_id":"MDQ6VXNlcjEwNDAzMA==","avatar_url":"https://avatars1.githubusercontent.com/u/104030?v=4","gravatar_id":"","url":"https://api.github.com/users/rsc","html_url":"https://github.com/rsc","followers_url":"https://api.github.com/users/rsc/followers","following_url":"https://api.github.com/users/rsc/following{/other_user}","gists_url":"https://api.github.com/users/rsc/gists{/gist_id}","starred_url":"https://api.github.com/users/rsc/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/rsc/subscriptions","organizations_url":"https://api.github.com/users/rsc/orgs","repos_url":"https://api.github.com/users/rsc/repos","events_url":"https://api.github.com/users/rsc/events{/privacy}","received_events_url":"https://api.github.com/users/rsc/received_events","type":"User","site_admin":false},"open_issues":1737,"closed_issues":1164,"state":"open","created_at":"2015-04-06T20:47:19Z","updated_at":"2018-08-26T20:49:15Z","due_on":"2099-12-31T08:00:00Z","closed_at":null},"comments":33,"created_at":"2013-06-11T18:24:19Z","updated_at":"2018-08-27T02:29:04Z","closed_at":null,"author_association":"NONE","body":"by **reid.write**:\n\n<pre>STR:\n1. clone the git repository here: git@github.com:tarasglek/jsonbench.git\n2. Generate some sample JSON data using the instructions in the README\n3. Run the go json benchmark which is in gojson/src/jsonbench/json.go\n\nWhat is the expected output?\nI expected to see performance roughly in line with Java (using Jackson for json\nparsing). On my test machine, the Java benchmark results in the following:\nProcessing 436525928 bytes took 5491 ms (75.82 MB/s)\n\nWhat do you see instead?\nSignificantly slower performance, using the same input file:\nDuration: 27.497043818s, 15.14 MB/s\n\nWhich compiler are you using (5g, 6g, 8g, gccgo)?\nNot sure\n\nWhich operating system are you using?\nLinux dell-ubuntu 3.2.0-45-generic #70-Ubuntu SMP Wed May 29 20:12:06 UTC 2013 x86_64\nx86_64 x86_64 GNU/Linux\n\nWhich version are you using?  (run 'go version')\ngo version go1.1 linux/amd64</pre>\n"},"comment":{"url":"https://api.github.com/repos/golang/go/issues/comments/416097158","html_url":"https://github.com/golang/go/issues/5683#issuecomment-416097158","issue_url":"https://api.github.com/repos/golang/go/issues/5683","id":416097158,"node_id":"MDEyOklzc3VlQ29tbWVudDQxNjA5NzE1OA==","user":{"login":"bradfitz","id":2621,"node_id":"MDQ6VXNlcjI2MjE=","avatar_url":"https://avatars1.githubusercontent.com/u/2621?v=4","gravatar_id":"","url":"https://api.github.com/users/bradfitz","html_url":"https://github.com/bradfitz","followers_url":"https://api.github.com/users/bradfitz/followers","following_url":"https://api.github.com/users/bradfitz/following{/other_user}","gists_url":"https://api.github.com/users/bradfitz/gists{/gist_id}","starred_url":"https://api.github.com/users/bradfitz/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/bradfitz/subscriptions","organizations_url":"https://api.github.com/users/bradfitz/orgs","repos_url":"https://api.github.com/users/bradfitz/repos","events_url":"https://api.github.com/users/bradfitz/events{/privacy}","received_events_url":"https://api.github.com/users/bradfitz/received_events","type":"User","site_admin":false},"created_at":"2018-08-27T02:29:04Z","updated_at":"2018-08-27T02:29:04Z","author_association":"MEMBER","body":"@mvdan, can you post a benchmark summary here of Go 1.11 vs Go tip after your various changes?\r\n\r\nI'm fine closing this and opening more specific issues. Just cross-reference them to this.\r\n"}}
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