FWIW, I'm also seeing this contention to a much smaller extent on much more "normal" hardware. I've got a 6-core (as opposed to 80) desktop machine where I'm doing the same test on a real disk (instead of a loopback-mounted ramfs file). I'm seeing _about_ 10% CPU time being used on just spinning on the same ext4 LRU lock. -- 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
