{"action":"created","issue":{"url":"https://api.github.com/repos/azavea/nyc-trees/issues/1151","labels_url":"https://api.github.com/repos/azavea/nyc-trees/issues/1151/labels{/name}","comments_url":"https://api.github.com/repos/azavea/nyc-trees/issues/1151/comments","events_url":"https://api.github.com/repos/azavea/nyc-trees/issues/1151/events","html_url":"https://github.com/azavea/nyc-trees/issues/1151","id":68187238,"number":1151,"title":"Measure impact of Windshaft metatile setting","user":{"login":"hectcastro","id":43639,"avatar_url":"https://avatars.githubusercontent.com/u/43639?v=3","gravatar_id":"","url":"https://api.github.com/users/hectcastro","html_url":"https://github.com/hectcastro","followers_url":"https://api.github.com/users/hectcastro/followers","following_url":"https://api.github.com/users/hectcastro/following{/other_user}","gists_url":"https://api.github.com/users/hectcastro/gists{/gist_id}","starred_url":"https://api.github.com/users/hectcastro/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/hectcastro/subscriptions","organizations_url":"https://api.github.com/users/hectcastro/orgs","repos_url":"https://api.github.com/users/hectcastro/repos","events_url":"https://api.github.com/users/hectcastro/events{/privacy}","received_events_url":"https://api.github.com/users/hectcastro/received_events","type":"User","site_admin":false},"labels":[{"url":"https://api.github.com/repos/azavea/nyc-trees/labels/performance","name":"performance","color":"000000"}],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":1,"created_at":"2015-04-13T20:29:20Z","updated_at":"2015-04-13T20:52:09Z","closed_at":null,"body":"## Measurement environment details\r\n\r\n- Local development setup\r\n- Loaded all blockfaces\r\n- Recorded requests inbound to tiler from the default progress view with [gor](https://github.com/buger/gor)\r\n- Replayed recorded requests with different `metatile` settings of `1`, `4`, `8`, `16`, `32`\r\n- Restarted tile server after each configuration change\r\n\r\n![metatile](https://cloud.githubusercontent.com/assets/43639/7124542/e6dc3f1a-e1f7-11e4-82d6-2e9658aa9fdd.png)\r\n\r\n**Note**: `32` has no data because setting `metatile` to `32` causes the tiler to crash running out of memory.\r\n\r\nAlso worth noting that the `N.grid.json` queries always seem to take significantly longer than `N.png`. I assume this is expected, but with `metatile=1` each individual `N.grid.json` request takes between 10-30 seconds."},"comment":{"url":"https://api.github.com/repos/azavea/nyc-trees/issues/comments/92494702","html_url":"https://github.com/azavea/nyc-trees/issues/1151#issuecomment-92494702","issue_url":"https://api.github.com/repos/azavea/nyc-trees/issues/1151","id":92494702,"user":{"login":"RickMohr","id":2162993,"avatar_url":"https://avatars.githubusercontent.com/u/2162993?v=3","gravatar_id":"","url":"https://api.github.com/users/RickMohr","html_url":"https://github.com/RickMohr","followers_url":"https://api.github.com/users/RickMohr/followers","following_url":"https://api.github.com/users/RickMohr/following{/other_user}","gists_url":"https://api.github.com/users/RickMohr/gists{/gist_id}","starred_url":"https://api.github.com/users/RickMohr/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/RickMohr/subscriptions","organizations_url":"https://api.github.com/users/RickMohr/orgs","repos_url":"https://api.github.com/users/RickMohr/repos","events_url":"https://api.github.com/users/RickMohr/events{/privacy}","received_events_url":"https://api.github.com/users/RickMohr/received_events","type":"User","site_admin":false},"created_at":"2015-04-13T20:52:09Z","updated_at":"2015-04-13T20:52:09Z","body":"What are the x and y axes in this graph?"}}