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