Re: XFS or EXT4 on Amazon AWS AMIs

http://edgystuff.tumblr.com/post/81219256714/tips-to-check-and-improve-your-storage-io Which specifies: SERVER-13417

Re: XFS or EXT4 on Amazon AWS AMIs

I'd like to see the MongoDB report(?). ext4fs design specifications includes support for large files via allocation placement. MongoDB, the last time I checked, does pre-allocation which gives it the performance benefit of ext4fs multiple design factors (Block and Inode Allocation Policy), but t

XFS or EXT4 on Amazon AWS AMIs

So what are people recommending for SOLR on AWS on Amazon AMI - ext4 or xfs? I saw an article about MongoDB - saying performance on Amazon was better due to a mutex issue on ext4 files and threaded calls. I have been using ext4 for a long time, but I am moving to r3.* instances and TRIM / DISCARD