[Bug 197933] Re: very slow e2fsck in hardy
So the problems seems to have been an irqpoll command line option added to grub. I'm pretty sure I never did this myself and I think it was added during a hardy upgrade. ** Changed in: ubuntu Sourcepackagename: e2fsprogs = None -- very slow e2fsck in hardy https://bugs.launchpad.net/bugs/197933 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 197933] Re: very slow e2fsck in hardy
Not an e2fsprogs bug. -- very slow e2fsck in hardy https://bugs.launchpad.net/bugs/197933 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 197933] Re: very slow e2fsck in hardy
I think what happened was this: I previously added irqpoll to work around another kernel bug. At the time this had little impact. The later change in the hardy kernel to be tickless made it have a much bigger impact, so that's why I noticed it now. ** Changed in: ubuntu Status: Confirmed = Invalid -- very slow e2fsck in hardy https://bugs.launchpad.net/bugs/197933 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
Re: [Bug 197933] Re: very slow e2fsck in hardy
On 03/03/2008, TerryG [EMAIL PROTECTED] wrote: Thanks for your bug submission. What version of Hardy or when was your last complete update? The previous day, I was probably booting 2.6.24-10-generic. -- Martin -- very slow e2fsck in hardy https://bugs.launchpad.net/bugs/197933 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 197933] Re: very slow e2fsck in hardy
Oh, one other thing. You might want to try running hdparm -t -t /dev/hdXX under the old and the new kernel, and see if the hard drive transfer rates dropped suddenly. And let us know about your specific hardware configuration. I've seen problems, especially with latops in the Thinkpad T42 -- T60 vintage where due to issues of using the wrong disk drivers (due to the IDE/SATA/AHCI issues around compatibility hardware interfaces and more than one drivers being able to service the device --- but with wildly varying performance) responsible for very sluggish performance, both for fsck and for generic filesystem usage (especially right after the system is booted, when the page cache hasn't had a chance to be populated --- the inode, dentry, and page caches can hide a huge amount of hard drive performance issues, but right after the system is booted, these problems are much more easily visible.) -- very slow e2fsck in hardy https://bugs.launchpad.net/bugs/197933 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 197933] Re: very slow e2fsck in hardy
** Attachment added: tune2fs.out http://launchpadlibrarian.net/12361413/tune2fs.out -- very slow e2fsck in hardy https://bugs.launchpad.net/bugs/197933 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 197933] Re: very slow e2fsck in hardy
Thanks for your bug submission. What version of Hardy or when was your last complete update? Marking as Confirmed due to high annoyance factor. ** Changed in: e2fsprogs (Ubuntu) Status: New = Confirmed -- very slow e2fsck in hardy https://bugs.launchpad.net/bugs/197933 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 197933] Re: very slow e2fsck in hardy
Hi Martin, This is a place where a compressed raw e2image file (see the man page for e2image for more details) would very useful indeed. The two things I would check for is an increased number of indirect and double indirect blocks causing increased seeking during pass 1, and increased memory usage (possibly because of a large number of hard links) causing swapping. If you would be willing to do an e2fsck -n check, even while the filesystem is mounted, and check to see whether or not you are seeing swapping. If you can run e2fsck under sar, that will help see if we have a swapping or excessive seek problem. Also, if you would be willing to send me a raw, compressed e2image file (see the e2image man page), that would also be helpful. Thanks!! -- very slow e2fsck in hardy https://bugs.launchpad.net/bugs/197933 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
