Dave, It wasn't my intention to say that XFS was bad; in fact, I thought I was actually complementing XFS by talking about some of the advanced features that XFS had (many of which I have always said that ext3 has, and some of which ext4 still does not have, and probably never will have). I stand corrected on some of the details that I got wrong. What I was trying to say was that *if* (and perhaps I'm misunderstanding fsblock) that fsblock is requiring that as soon as a page is dirty, fsblock requests the filesystem to assign a block allocation to the buffers attached to the dirty page, that this would spike out delayed allocation, which would be unfortunate for *both* ext4 and XFS. But maybe I'm misunderstanding what fsblock is doing, and there isn't a problem here. Regards, - Ted -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
