{"comment":{"url":"https://api.github.com/repos/ChronoMonochrome/Chrono_Kernel/comments/11005298","html_url":"https://github.com/ChronoMonochrome/Chrono_Kernel/commit/42034fd9ee51abee265dc2dbfbe921e602e83f0d#commitcomment-11005298","id":11005298,"user":{"login":"mkaluza","id":991991,"avatar_url":"https://avatars.githubusercontent.com/u/991991?v=3","gravatar_id":"","url":"https://api.github.com/users/mkaluza","html_url":"https://github.com/mkaluza","followers_url":"https://api.github.com/users/mkaluza/followers","following_url":"https://api.github.com/users/mkaluza/following{/other_user}","gists_url":"https://api.github.com/users/mkaluza/gists{/gist_id}","starred_url":"https://api.github.com/users/mkaluza/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/mkaluza/subscriptions","organizations_url":"https://api.github.com/users/mkaluza/orgs","repos_url":"https://api.github.com/users/mkaluza/repos","events_url":"https://api.github.com/users/mkaluza/events{/privacy}","received_events_url":"https://api.github.com/users/mkaluza/received_events","type":"User","site_admin":false},"position":null,"line":null,"path":"","commit_id":"42034fd9ee51abee265dc2dbfbe921e602e83f0d","created_at":"2015-05-01T18:21:39Z","updated_at":"2015-05-01T18:21:39Z","body":"On May 1, 2015 8:14 PM, \"Shilin Victor\" <notifications@github.com> wrote:\n>\n> @mkaluza, recently I've compiled kernel with CONFIG_MMC_BLOCK_BOUNCE, and\nwas quite surprised how this increased I/O performance. I did few tests in\nQuadrant, results as follows:\n> 1) without patch: ~9000-9300\n> 2) with patch ~10300-10600\n> Both tests were done with following setup: CPU 1200 MHz (performance),\nI/O: FIOPS, Fsync - dynamic, software CRCs disabled, file system - F2FS.\n> Just to ensure that system doesn't lie, I've installed kernel with patch\nagain, and achieved same results as before - ~10600.\n\nthanks. ~15% - quite a bit, though from the description here\nhttp://cateee.net/lkddb/web-lkddb/MMC_BLOCK_BOUNCE.html I expected more (at\nleast I percieve my phone to be more than 15% slower than I wish it to be\n;P)\n\nCan you feel any real life difference?\n\nNevertheless I'll dust off my toolchain and rebuild the kernel with that\noption on and get back to you.\n"}}