{"action":"created","issue":{"url":"https://api.github.com/repos/yjxiong/caffe/issues/49","repository_url":"https://api.github.com/repos/yjxiong/caffe","labels_url":"https://api.github.com/repos/yjxiong/caffe/issues/49/labels{/name}","comments_url":"https://api.github.com/repos/yjxiong/caffe/issues/49/comments","events_url":"https://api.github.com/repos/yjxiong/caffe/issues/49/events","html_url":"https://github.com/yjxiong/caffe/issues/49","id":136073508,"number":49,"title":"better performance in reading images from disk","user":{"login":"antran89","id":2399449,"avatar_url":"https://avatars.githubusercontent.com/u/2399449?v=3","gravatar_id":"","url":"https://api.github.com/users/antran89","html_url":"https://github.com/antran89","followers_url":"https://api.github.com/users/antran89/followers","following_url":"https://api.github.com/users/antran89/following{/other_user}","gists_url":"https://api.github.com/users/antran89/gists{/gist_id}","starred_url":"https://api.github.com/users/antran89/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/antran89/subscriptions","organizations_url":"https://api.github.com/users/antran89/orgs","repos_url":"https://api.github.com/users/antran89/repos","events_url":"https://api.github.com/users/antran89/events{/privacy}","received_events_url":"https://api.github.com/users/antran89/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":2,"created_at":"2016-02-24T14:16:14Z","updated_at":"2016-02-24T14:39:46Z","closed_at":null,"body":"Hi @yjxiong \r\nI have a question to ask your guys here. I run very deep two-stream cnn on my data, but I do not know why my caffe is reading images from disk very slow. Most of the time spends on reading from disk with unreasonable proportional (about 1s computing and 8s idle, might be reading images from disks as illustrated in the image). Is is an expected behavior? Or a bug? T\r\n![selection_001](https://cloud.githubusercontent.com/assets/2399449/13287837/f6359240-db43-11e5-8c49-e70eb19c3807.png)\r\nBest regards,\r\n"},"comment":{"url":"https://api.github.com/repos/yjxiong/caffe/issues/comments/188282172","html_url":"https://github.com/yjxiong/caffe/issues/49#issuecomment-188282172","issue_url":"https://api.github.com/repos/yjxiong/caffe/issues/49","id":188282172,"user":{"login":"antran89","id":2399449,"avatar_url":"https://avatars.githubusercontent.com/u/2399449?v=3","gravatar_id":"","url":"https://api.github.com/users/antran89","html_url":"https://github.com/antran89","followers_url":"https://api.github.com/users/antran89/followers","following_url":"https://api.github.com/users/antran89/following{/other_user}","gists_url":"https://api.github.com/users/antran89/gists{/gist_id}","starred_url":"https://api.github.com/users/antran89/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/antran89/subscriptions","organizations_url":"https://api.github.com/users/antran89/orgs","repos_url":"https://api.github.com/users/antran89/repos","events_url":"https://api.github.com/users/antran89/events{/privacy}","received_events_url":"https://api.github.com/users/antran89/received_events","type":"User","site_admin":false},"created_at":"2016-02-24T14:39:45Z","updated_at":"2016-02-24T14:39:45Z","body":"Hi @yjxiong \r\nAbout number 2, ucf101 is too big for fitting into memory. If I set smaller batchsize, would it be faster in term of reading small image files from disks. Any caches? thanks"}}