On Tue, 20 Jan 2009 16:22:07 +0100 Adrian Chapela <achapela.rexist...@gmail.com> wrote:
> Micha Feigin escribió: > > On Tue, 20 Jan 2009 12:41:43 +0100 > > Adrian Chapela <achapela.rexist...@gmail.com> wrote: > > > > > >> Hello! > >> > >> I am doing my own tests with Ext4. It has better performance than ext3 > >> FS. On some tests that I have done, I have 40 MB/s more than the same > >> hardware with ext3 FS. Have you seen the same ? > >> > >> My doubt is about the stability, is it really for production use ? I > >> want to know that because I am really interested in use in production > >> use (like most of us, I think...). I have done some tests about crash > >> recovery and I have seen a good response. I have copied a lot of files > >> and I have cutted power on server. The filesystem is OK after the power > >> is connected again. I want to try with a mysql server on a intensive > >> inserting/writing, I think this is a good tes to do, because a database > >> server needs very reliable filesystem. > >> > >> Regards, Adrián > >> > >> > >> > > > > I'm having a good experience with it, but I would use it at least with > > kernel 2.6.28 and up (when it went from ext4dev to ext4). The problem is > > that ubuntu and debian live and rescue cds are kernel 2.6.27 and 2.6.26 > > respectively so they won't be able to boot into the system. > Yes I know, I am using my own 2.6.28 compiled kernel (Debian way > compiled ;) ). I know this problem but at this moment is a secondary > problem, I think a lot of linux distributions will launch new versions > with ext4 capable kernel. > > Also if you want boot on the ext4 > > partition you will need to use grub2 as grub doesn't support ext4. > Another good tip to save in my mind. > > The last > > thing is that laptopmode doesn't seem to work as well with ext4 as of now. > > > Yes, It could be the reason of the problem that someone had with his > partitions. His partitions locked for a few seconds before they gave a > response again. that is usually not a laptopmode problem, unless it is doing it's work and the disk had to spin up before a read. In case this is a laptop (otherwise laptopmode usually isn't relevant anyway, although it may prolong disk life at the expense of response time), does it have hdaps (shock protection) enabled? I had this problem where the laptop just locked up on the train due to too low a threshold for parking the disk heads. > It is a good thing to investigate, because it could be a hidden bug. > > -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
