Le 08/10/2012 18:09, Josef Bacik a écrit : > Can you get sysrq+w when you are seeing slowness? Usually bootup slow times > means you don't have space_cache enabled or your cache is being evicted for some > reason, can you check dmesg after bootup for messages related to space cache? > Thanks, I have a few : Oct 8 15:27:26 tethys kernel: [16174.736603] btrfs: free space inode generation (0) did not match free space cache generation (106988) Oct 8 15:27:27 tethys kernel: [16175.976784] btrfs: free space inode generation (0) did not match free space cache generation (30727) Oct 8 15:27:28 tethys kernel: [16176.420719] btrfs: free space inode generation (0) did not match free space cache generation (48040) Oct 8 15:27:28 tethys kernel: [16176.710972] btrfs: free space inode generation (0) did not match free space cache generation (30745) ...in syslog, but that's about all... and not during boot... I used to have much much more of these in syslog, but solved it by booting once with the "clear_cache" option, that caused boot to be extremely slow, but seemed to fix it... (Remember I have such issues on several machines, it is highly improbable that all of them would get their cache ignored...?) Kind regards. -- Swâmi Petaramesh <swami@xxxxxxxxxxxxxx> http://petaramesh.org PGP 9076E32E Ne cherchez pas : Je ne suis pas sur Facebook. -- 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
