inode size will be a crucial choice in the scenario you describe. Consider the conflict: A large inode can hold a complete file or a complete directory. But the bigger the inode size, the less that fit in any given block size -- so when you have to read several inodes ... more IO, less likely that inodes you want are in the same block. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://gpfsug.org/pipermail/gpfsug-discuss_gpfsug.org/attachments/20160927/c5d94456/attachment.html>