Hi, I've been running btrfs on my SSD powered laptop for about a year and a half (with force-compress=lzo and autodefrag) and it seems the volume has degraded quite a lot although I am not using snapshot functionality. No matter what I do (scrub, defrag ob the whole volume), files seem to stay highly fragmented - at least that is my guess. When e.g. starting up X11+XFCE the hdd led is lid for about 10s (the Samsung 830 can do up to 80k/iops random read), also starting google-chrome results in an active SSD for ~5s (although the chrome binary + libs is for sure < 200mb, so should be loaded in 500ms).
What I wonder is how can I diagnose whats happening and why the FS is rather slow? The only target value I know is the extend count, which doesn't seem to be meaningful when using fragmentation. Thank you in advance, Clemens Eisserer -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
