On Dec 19, 2012, at 2:27 PM, "Theodore Ts'o" <tytso@xxxxxxx> wrote: > On Wed, Dec 19, 2012 at 06:14:01PM +0100, Jan Kara wrote: >> I agree. Just I'm still somewhat puzzled by those two reports pointed to >> by Eric. In both cases stored tids were 0 and I cannot see how that happens >> (well how it could happen in a reasonably likely way). > > I'm also really puzzled about how Eric's patch makes a 10% different > on the AIM7 benchmark; as you've pointed out, that will just cause an > extra wakeup of the jbd/jbd2 thread, which should then quickly check > and decide to go back to sleep. TBH I'm puzzled too, but that's what the perf guys tell me... Eric > - Ted -- 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
