On Tue, Jan 15, 2008 at 10:33:01AM -0800, Michael Rubin wrote: > On Jan 15, 2008 4:36 AM, Fengguang Wu <wfg@xxxxxxxxxxxxxxxx> wrote: > > Andrew, > > > > This patchset mainly polishes the writeback queuing policies. > > Anyone know which tree is this patched based out of? They are against the latest -mm tree, or 2.6.24-rc6-mm1. > > The main goals are: > > > > (1) small files should not be starved by big dirty files > > (2) sync as fast as possible for not-blocked inodes/pages > > - don't leave them out; no congestion_wait() in between them > > (3) avoid busy iowait for blocked inodes > > - retry them in the next go of s_io(maybe at the next wakeup of pdflush) > > > > Fengguang do you have any specific tests for any of these cases? As I > have posted earlier I am putting together a writeback test suite for > test.kernel.org and if you have one (even if it's an ugly shell > script) that would save me some time. No, I just run tests with cp/dd etc. I analyze the code and debug traces a lot, and know that it works in the situations I can imagine. But dedicated test suites are good in the long term. > Also if you want any of mine let me know. :-) OK, thank you. Fengguang - To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
