On Wed, May 30, 2012 at 11:09 PM, Josef Bacik <josef@xxxxxxxxxx> wrote: > Hrm well being on root makes it hard to figure out what is going on. The mount > stuff is all in reads but who knows whats going on. Can you do bootchart so I > can see what threads are spawned, maybe the old caching stuff is getting tripped > for some reason. You can find the result of running bootchart here: http://ctrlv.in/89812 > The next thought is to boot up with a rescue disk and mount > while running latencytop -c (you'll need this patch > http://oss.oracle.com/~mason/latencytop.patch) and post the output somewhere so > we can see it. I downloaded a daily snapshot of openSUSE Factory and booted that, it has kernel 3.4.0. Mounting took less than 10 seconds but probably still too much: linux:/home/linux # time mount -onoatime,space_cache,inode_cache,autodefrag,compress=lzo -t btrfs /dev/sda8 /mnt/ real 0m3.769s user 0m0.005s sys 0m0.273s Latencytop output is at: https://gist.github.com/2845725 Thanks for your help, Catalin -- 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
