Hi there, I'm trying to tune compression options for btrfs. Specifically, I want to know the performance impact on the system under different compression unit (block) sizes. I'm aware of '--nodesize' parameter which sets the block size of metadata tree. Does that also set the block size in an extent? (from my understanding, file data are mostly stored in extent unless small enough to be inline-d in metadata leaf node?) Also from btrfs's wikipedia page: In compressed extents, individual blocks are not compressed separately; rather, the compression stream spans the entire extent. Is that still true? Thanks, Xiaochu -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
