https://bugzilla.kernel.org/show_bug.cgi?id=42895 --- Comment #17 from Theodore Tso <tytso@xxxxxxx> 2012-05-17 18:34:58 --- Eugene, I suspect this is much more of a change with the userspace components of the distribution. Ext3 hasn't changed much since 2.6.38, and everything I've said about how jbd2 works also applies to ext3 and jbd. So people who are convinced this is a jbd2 problem can certainly try building a kernel with ext3 (for those distro's who are using ext4 for ext3 and ext4 file system formats). My experience is that when comparing ext3 and ext4, I haven't found a situation where ext4 has been slower than ext3. If you can demonstrate a situation where using ext3 you get one speed, and then using exactly the same configuration, ext4 is slower, please let me know and we'll certainly take a look at it. Something else you might try is dropping a modern (3.2 or 3.3) kernel unto an older distribution. I'm currently typing this on a Ubuntu LTS 10.04 system running with a 3.2 kernel. That would allow for a controlled experiment. But all I can say is if Network Manager is doing something as crazy as writing to a Timestamp file every n seconds, there really is nothing you can do at the kernel level. -- Configure bugmail: https://bugzilla.kernel.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are watching the assignee of the bug. -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
