Ian, We have Ubuntu server edition for our cluster so the deadline scheduler is already what we use. Glad to know that I don't have to change that :P
J-D On Sat, Jan 10, 2009 at 5:29 PM, Ian Holsman <[email protected]> wrote: > Jean-Daniel Cryans wrote: > >> Hey all, >> >> Has anybody tried some HBase pounding on ext4 from the new 2.6.28 kernel? >> Steven from Computer World saw 30% boost in write speed with MySQL [1]. I >> guess we should expect something like that too. >> >> J-D >> >> >> > > Hi JD. > you might also want to try experimenting with different I/O schedulers > (moving it from the default CFQ to deadline for example). I don't know how > 'smart' hadoop is, but it could make a huge difference as well. > > see the bottom of > http://www.mysqlperformanceblog.com/2008/12/18/xtradb-benchmarks-15x-gain/ > for how much of a effect it had in mysql benchmarks. > > 1. http://blogs.computerworld.com/linux_2_6_28s_five_best_features >> >> >> > >
