Hello everyone, I've pushed out my current patch queue so that I can start merging in all those pending patches. It has some really experimental stuff in there, and it disables data file checksums for now. Don't pull from the hg tree unless you want to delete your files once checksums go back in (I'll put in a -o nocsum mount option too so you can still read things).
The big change is using my extent based page cache code to manage file data pages. This makes for much less cpu time used during reads and writes on big extents because btrfs_search_slot is called much much less often. It also made delayed allocation fairly simple, and I've changed file_write, truncate, and mmap to use delayed allocation. This means extents aren't allocated until just before the IO is done, and it's a pretty huge win, especially on workloads that would frequently append onto existing bytes in the file. If you're waiting for me to merge something you've already sent, I'll do the merging here tomorrow. -chris _______________________________________________ Btrfs-devel mailing list [email protected] http://oss.oracle.com/mailman/listinfo/btrfs-devel
