I have the money shot for my LCA presentation

Thanks to Eric Whitney’s benchmarking results, I have my money shot for my upcoming 2011 LCA talk in Brisbane, which will be about how to improve scalability in the Linux kernel, using the case study of the work that I did to improve scalability via a series of...

Don’t fear the fsync!

After reading the comments on my earlier post, Delayed allocation and the zero-length file problem as well as some of the comments on the Slashdot story as well as the Ubuntu bug, it’s become very clear to me that there are a lot of myths and misplaced concerns...

Delayed allocation and the zero-length file problem

A recent Ubuntu bug has gotten slashdotted, and has started raising a lot of questions about the safety of using ext4. I’ve actually been meaning to blog about this for a week or so, but between a bout of the stomach flu and a huge todo list at work, I simply...

SSD’s, Journaling, and noatime/relatime

On occasion, you will see the advice that the ext3 file system is not suitable for Solid State Disks (SSD’s) due to the extra writes caused by journaling — and so Linux users using SSD’s should use ext2 instead. However, is this folk wisdom actually...