On Sun, Jun 28, 2020 at 9:57 AM Michael Catanzaro <mcatanzaro@xxxxxxxxx> wrote: > > (fixing the subject line to not mention nano) > > On Sun, Jun 28, 2020 at 5:16 am, alexandrebfarias@xxxxxxxxx wrote: > > Don't expect much love on this, since my opinion has been downvoted > > on reddit by many of those who don't want to hear bad news about > > btrfs. And no, I don't have any benchmarks and did not collect any > > logs, I'm not talking about a bug, BTRFS is defective beyond anything > > Fedora could do to fix it. After spending so much time fighting > > against my system > > Well the btrfs change proposal exists to improve the user experience. > User experience is the overriding goal behind everything we do. I've > just finished wading through the rest of the btrfs discussion, finding > most concerns about the filesystem not very compelling... but your > experience with btrfs is concerning to me. It seems you suffered from a > serious I/O performance issue. Since one of the goals of this proposal > is to *improve* system responsiveness under heavy load, it should go > without saying that we don't want to introduce noticeable performance > issues. I wonder if the change owners have any idea what might have > gone wrong for Alexandre? Is this something we could attempt to > reproduce and measure (if Alexandre is willing to do some further > testing to put numbers on the problem)? > > Alexandre, if you could provide an estimate of approximately when this > happened (approximate kernel version)...? > I would definitely be interested in more data here, but from what I read, it *seems* like that WD Blue SSD is wonkier than it should be. When I first looked at SSDs three years ago, I'd see weird performance behavior like that depending on brand and model. I can't prove anything in this case because I don't know anything about that SSD, nor do I have any logs or ability to diagnose it (or even that particular SSD device on hand), but I'd be concerned about the drive maybe having a fault. One of the reasons I recommend Samsung EVO SSDs is because they have been consistently reliable for me across several generations. But, I just don't know enough to provide a good answer here. -- 真実はいつも一つ！/ Always, there's only one truth! _______________________________________________ devel mailing list -- devel@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to devel-leave@xxxxxxxxxxxxxxxxxxxxxxx Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/devel@xxxxxxxxxxxxxxxxxxxxxxx
