{"action":"created","issue":{"url":"https://api.github.com/repos/sparsehash/sparsehash/issues/78","repository_url":"https://api.github.com/repos/sparsehash/sparsehash","labels_url":"https://api.github.com/repos/sparsehash/sparsehash/issues/78/labels{/name}","comments_url":"https://api.github.com/repos/sparsehash/sparsehash/issues/78/comments","events_url":"https://api.github.com/repos/sparsehash/sparsehash/issues/78/events","html_url":"https://github.com/sparsehash/sparsehash/issues/78","id":101102524,"number":78,"title":"Is it possible to use memory mapping to load / save a dense hash map?","user":{"login":"GoogleCodeExporter","id":9614759,"avatar_url":"https://avatars.githubusercontent.com/u/9614759?v=3","gravatar_id":"","url":"https://api.github.com/users/GoogleCodeExporter","html_url":"https://github.com/GoogleCodeExporter","followers_url":"https://api.github.com/users/GoogleCodeExporter/followers","following_url":"https://api.github.com/users/GoogleCodeExporter/following{/other_user}","gists_url":"https://api.github.com/users/GoogleCodeExporter/gists{/gist_id}","starred_url":"https://api.github.com/users/GoogleCodeExporter/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/GoogleCodeExporter/subscriptions","organizations_url":"https://api.github.com/users/GoogleCodeExporter/orgs","repos_url":"https://api.github.com/users/GoogleCodeExporter/repos","events_url":"https://api.github.com/users/GoogleCodeExporter/events{/privacy}","received_events_url":"https://api.github.com/users/GoogleCodeExporter/received_events","type":"User","site_admin":false},"labels":[{"url":"https://api.github.com/repos/sparsehash/sparsehash/labels/auto-migrated","name":"auto-migrated","color":"ededed"},{"url":"https://api.github.com/repos/sparsehash/sparsehash/labels/Priority-Low","name":"Priority-Low","color":"ededed"}],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":6,"created_at":"2015-08-14T21:00:11Z","updated_at":"2016-02-17T12:50:53Z","closed_at":null,"body":"```\nWhat steps will reproduce the problem?\n\nIf a dense hash map contains a large number of key-value pairs (both POD), is \nit possible to use a memory mapping file to load / save it?\n\nThe data eats memory a log, and I need to load them in multiple processes. If \nmemory mapping is supported, the footprint can be shared between processes, \nwhich saves a lot of memory.\n\nI'm not familiar with dense hash map's implementation, just ask here for \nwhether it is possible, or someone has tried this.\n\nThank you in advance.\n\nWhat is the expected output? What do you see instead?\n\n\nWhat version of the product are you using? On what operating system?\n\n\nPlease provide any additional information below.\n\n```\n\nOriginal issue reported on code.google.com by `huas...@gmail.com` on 14 Jan 2012 at 3:45"},"comment":{"url":"https://api.github.com/repos/sparsehash/sparsehash/issues/comments/185185281","html_url":"https://github.com/sparsehash/sparsehash/issues/78#issuecomment-185185281","issue_url":"https://api.github.com/repos/sparsehash/sparsehash/issues/78","id":185185281,"user":{"login":"Dekken","id":30491,"avatar_url":"https://avatars.githubusercontent.com/u/30491?v=3","gravatar_id":"","url":"https://api.github.com/users/Dekken","html_url":"https://github.com/Dekken","followers_url":"https://api.github.com/users/Dekken/followers","following_url":"https://api.github.com/users/Dekken/following{/other_user}","gists_url":"https://api.github.com/users/Dekken/gists{/gist_id}","starred_url":"https://api.github.com/users/Dekken/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/Dekken/subscriptions","organizations_url":"https://api.github.com/users/Dekken/orgs","repos_url":"https://api.github.com/users/Dekken/repos","events_url":"https://api.github.com/users/Dekken/events{/privacy}","received_events_url":"https://api.github.com/users/Dekken/received_events","type":"User","site_admin":false},"created_at":"2016-02-17T12:50:53Z","updated_at":"2016-02-17T12:50:53Z","body":"Works on debian GCC 5.3, without the forever sleep."}}