On Tue, 2008-10-28 at 10:40 -0700, Zach Brown wrote: > > Compression is optional and off by default (mount -o compress to enable > > it). When enabled, every file is compressed. > > Compression is attempted as files are written when the mount option is > enabled, right? Yes, and if the compression doesn't make a given set of pages smaller it quickly backs off and goes back to writing it straight through. > > There isn't a background scrubber that tries to compress files which are > already written? No, but if you mount with compression on and use the single file defrag ioctl (btrfsctl -d some_file) it'll compress it. -chris -- 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
