Re: [Bug 432089] Re: performs poorly on slow HDD
Christian, Sorry you are still having trouble. Lots of people have reported that this solution has made substantial improvements to their boot time, effectively fixing this bug for all of them. If you are still experiencing a slow boot time, it would be best to open a new bug report because you must have a different issue. Feel free to post a link to your new report here, so other people having the same problem as you might have an easier time finding your report. On Tue, Dec 1, 2009 at 3:10 PM, Christian Loos chr.l...@googlemail.comwrote: After upgrade from jaunty to karmic my boot time was rising from 1 minute to 10 minutes. Even after I installed ureadahead and linux-image from proposed, boot time is also 10 minutes. So from my point of view this bug isn't fixed. Attached is my dmesg. If you need further information just contact me. ** Attachment added: dmesg-2009-12-01.log http://launchpadlibrarian.net/36308039/dmesg-2009-12-01.log ** Changed in: ureadahead (Ubuntu Karmic) Status: Fix Released = Fix Committed -- performs poorly on slow HDD https://bugs.launchpad.net/bugs/432089 You received this bug notification because you are a direct subscriber of a duplicate bug. Status in “sreadahead” package in Ubuntu: Won't Fix Status in “ureadahead” package in Ubuntu: Fix Released Status in “sreadahead” source package in Karmic: Fix Released Status in “ureadahead” source package in Karmic: Fix Committed Bug description: Binary package hint: sreadahead This is a tracking bug to improve performance on HDD disks, especially the really slow ones where sreadahead and the kernel have a deathmatch -- performs poorly on slow HDD https://bugs.launchpad.net/bugs/432089 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 432089] Re: performs poorly on slow HDD
Tim [2009-12-02 0:52 -]: Since I don't have karmic-proposed enabled, does that mean installing this update could break my system? No, the kernel is already in -updates now, and even if you don't run that the worst thing that can happen that you get no readahead at all, and thus no speedup. -- performs poorly on slow HDD https://bugs.launchpad.net/bugs/432089 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 432089] Re: performs poorly on slow HDD
On Thu, 2009-11-12 at 22:28 +, Bdopo wrote: Bootchart after installing the ureadhead from the boot ppa. 4 second difference. This is still profiling, make sure you have a /var/lib/ureadahead/*pack file and reboot again :-) Scott -- Scott James Remnant sc...@ubuntu.com -- performs poorly on slow HDD https://bugs.launchpad.net/bugs/432089 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 432089] Re: performs poorly on slow HDD
On Fri, 2009-11-13 at 08:35 +, ScottHW wrote: I've been experiencing significantly slower boot times since upgrading to Karmic. Too bad, as one of the main features I thought we were going to look forward to was faster booting. In Hardy, I was booting in ~0:39 In Jaunty, I was booting in ~-0.26 In Karmic, I was booting in ~1.22 Upgraded to ureadahead, I am booting in ~1.19 Please open up your jaunty and karmic (ureadhead) bootcharts; that goes for everyone else too ;-) Now first, please ignore the time: bit at the top. That is *NOT* your boot time, that is simply the number of seconds after boot that bootchart exited (for whatever reason). Reading jaunty, scroll down and look at the chart; look at what the last thing happening before the chart is cut off: It's about 3/4 the way down: [gdm ] [Xorg ] [sh] [xkbcomp] So this chart is being cut off as soon as the X server is started, and the other init scripts are finished. Reading karmic, you'll notice that the chart is much wider and that the CPU and I/O graphs of the last bit are empty. That's because bootchart runs longer to capture _more_ of the boot. Try and find the same gdm/Xorg pattern - it's not at the right hand side of the graph is it? In fact it's almost exactly in the middle. jaunty wasn't booting faster - the karmic bootchart just *also* includes your desktop login as well (since we care about both) Scott -- Scott James Remnant sc...@ubuntu.com -- performs poorly on slow HDD https://bugs.launchpad.net/bugs/432089 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 432089] Re: performs poorly on slow HDD
Hi Scott, On Tue, Nov 10, 2009 at 05:38:14PM -, Scott James Remnant wrote: hdparm sync of death. I should file a bug about that ;) - delete /lib/udev/rules.d/85-hdparm.rules If we don't use the udev rule, what will set the initial power management policy for the drive? We don't want to rely on /etc/init.d/acpi-support, since for one thing that's not guaranteed to catch all drives after they've been probed. -- Steve Langasek Give me a lever long enough and a Free OS Debian Developer to set it on, and I can move the world. Ubuntu Developerhttp://www.debian.org/ slanga...@ubuntu.com vor...@debian.org -- performs poorly on slow HDD https://bugs.launchpad.net/bugs/432089 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 432089] Re: performs poorly on slow HDD
On Thu, 2009-11-12 at 09:21 +, Steve Langasek wrote: On Tue, Nov 10, 2009 at 05:38:14PM -, Scott James Remnant wrote: hdparm sync of death. I should file a bug about that ;) - delete /lib/udev/rules.d/85-hdparm.rules If we don't use the udev rule, what will set the initial power management policy for the drive? We don't want to rely on /etc/init.d/acpi-support, since for one thing that's not guaranteed to catch all drives after they've been probed. You know that this does nothing out of the box, right? Other than call sync 32 times during boot Scott -- Scott James Remnant sc...@ubuntu.com -- performs poorly on slow HDD https://bugs.launchpad.net/bugs/432089 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 432089] Re: performs poorly on slow HDD
On Tue, 2009-11-10 at 19:20 +, FriedChicken wrote: In case you need it... Everything in the list has 0 blocks. What kind of filesystem are you using? Are you using wubi or anything? Scott -- Scott James Remnant sc...@ubuntu.com -- performs poorly on slow HDD https://bugs.launchpad.net/bugs/432089 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 432089] Re: performs poorly on slow HDD
On Tue, 2009-11-10 at 17:53 +, Ryan wrote: My before and after hover right around 131s tried remove on *pack, and did two more reboots. Here's the ureadahead --dump dump in case it is of any interest. Actually your boot time is 55s (look at the point on the chart where CPU and I/O activity ceases) Scott -- Scott James Remnant sc...@ubuntu.com -- performs poorly on slow HDD https://bugs.launchpad.net/bugs/432089 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 432089] Re: performs poorly on slow HDD
On Wed, 2009-11-11 at 06:25 +, Farooq wrote: This attachment contains bootchart graphs for sreadahead and after applying the patch, for ureadahead. Seems like the upgrade have given 5 seconds boost i.e. it was 70sec for sreadahead and is 65sec with ureadahead. But overall, it's still very very slow as compared with Jaunty which used to boot in 20sec. Your boot time is 45s, not 65s, with ureadahead. You didn't supply a jaunty bootchart, so I don't believe your 20s claim. Are you reading the Time: bit rather than looking at the chart itself? Scott -- Scott James Remnant sc...@ubuntu.com -- performs poorly on slow HDD https://bugs.launchpad.net/bugs/432089 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 432089] Re: performs poorly on slow HDD
In case you need it... Everything in the list has 0 blocks. What kind of filesystem are you using? Are you using wubi or anything? XFS on / and ext3 on /boot. No, it's a native installation. -- performs poorly on slow HDD https://bugs.launchpad.net/bugs/432089 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 432089] Re: performs poorly on slow HDD
Jamie Strandboge [2009-11-11 13:54 -]: Upgrading to the sreadahead in karmic-proposed (in main) pulls in ureadahead from from universe. Fixed some hour ago, promoted to main now. -- performs poorly on slow HDD https://bugs.launchpad.net/bugs/432089 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 432089] Re: performs poorly on slow HDD
On Wed, 2009-11-11 at 13:58 +, phil wrote: Yes, it works much better. Thank you Scott! But I'm still getting more than duble the boot time I had in jaunty if I'm not mistaken (?). Attached are bootcharts of the different kernel-versions. What is my problem? (said one shrink to the other..) No problem, bootchart just runs for longer in karmic ;-) In jaunty, this only covered the core boot sequence - and didn't even include the time for the login manager to show up. In your sylvester-jaunty-20091028-1.png chart, Xorg is still initialising where the bootchart cuts off on the RHS @ 55s. Comparing that to your sylvester-karmic-2009-4.png, Xorg finishes initialising around 45s (10s faster) - the bootchart simply then carries on to include your desktop login and the first 30-45s of your desktop usage. Scott -- Scott James Remnant sc...@ubuntu.com -- performs poorly on slow HDD https://bugs.launchpad.net/bugs/432089 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 432089] Re: performs poorly on slow HDD
Johan Kiviniemi [2009-11-11 15:49 -]: I’ve been running the kernel and ureadahead from the ubuntu-boot PPA and afterwards from karmic-proposed, including the very latest packages it currently has. It has worked for me all the time without problems. +1 on my system, for contributing to verification feedback -- performs poorly on slow HDD https://bugs.launchpad.net/bugs/432089 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 432089] Re: performs poorly on slow HDD
On Tue, 2009-11-10 at 06:09 +, pbrufal wrote: In my system, adding the PPA+ureadahead makes the system 5sec slower :? I'm using the last kernel (2.6.31-15.49) 80 sec before PPA 85 sec after PPA (tried 6 times) You didn't attach the before bootchart. In the after bootchart, the boot time is actually only 55s; of which it looks like 5s are waiting at the login screen. Scott -- Scott James Remnant sc...@ubuntu.com -- performs poorly on slow HDD https://bugs.launchpad.net/bugs/432089 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 432089] Re: performs poorly on slow HDD
On Tue, 2009-11-10 at 14:25 +, FriedChicken wrote: After installing ureadahead from proposed booting takes about 10 s longer. From the chart, it actually appears a few seconds quicker - but it's strange that it hasn't made much of a difference for you. Try removing that /var/lib/ureadhead/*pack files then doing a boot with auto-login enabled to profile that. If that's not faster - attach the output of ureadahead --dump to this bug. Scott -- Scott James Remnant sc...@ubuntu.com -- performs poorly on slow HDD https://bugs.launchpad.net/bugs/432089 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 432089] Re: performs poorly on slow HDD
On Tue, 2009-11-10 at 15:42 +, Tyson Williams wrote: This proposed update did not speed up my system (that uses a SSD). Ok, SSD gains are in the order of quarter to half a second - it's good to know it hasn't regressed :p (this update is all about HDD performance, not SSD) In all of these boot charts, you can see that there is about a 30 seconds period where the CPU is barely being used, the CPU is waiting for the disk, the disk is being utilized, but the throughput of the disk is basically zero. What is going on during this time? If it could be removed, I could at least get back to my ~30 Jaunty boot times. hdparm sync of death. I should file a bug about that ;) - delete /lib/udev/rules.d/85-hdparm.rules Scott -- Scott James Remnant sc...@ubuntu.com -- performs poorly on slow HDD https://bugs.launchpad.net/bugs/432089 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 432089] Re: performs poorly on slow HDD
On Tue, 2009-11-10 at 16:43 +, tado wrote: my boot time has decreased a bit, but it is still substantially high. bootchart says 1:20, my stopwatch says 1:52 till ready desktop. unfortunately i don't have a bootchart from right before installing, so the one attached here is from a few days ago. no substantial changes have happened since then, anyway. You're on SSD? Run ureadahead --dump | head -2 for me and attach the output. Scott -- Scott James Remnant sc...@ubuntu.com -- performs poorly on slow HDD https://bugs.launchpad.net/bugs/432089 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 432089] Re: performs poorly on slow HDD
Scott James Remnant [2009-10-15 19:43 -]: Not that I know of - which kernel are you using? Just what's in karmic (amd64 2.6.31-14.47-generic), but it's been that slow for weeks, so it's nothing new. -- Martin Pitt| http://www.piware.de Ubuntu Developer (www.ubuntu.com) | Debian Developer (www.debian.org) -- performs poorly on slow HDD https://bugs.launchpad.net/bugs/432089 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 432089] Re: performs poorly on slow HDD
Hernando Torque [2009-10-15 21:17 -]: @Martin Pitt: Are you referring to the bar in the chart not being red? I did yes. That, and grub-gdm now taking 85 seconds, where it took just 50 in jaunty. Maybe bootchart doesn't represent sreadahead very well, because when put in foreground you can see I/O going on while the bar is still gray: http://img.xrmb2.net/images/660462.png It might also be a bootchart bug of course, assigning the I/O to wrong processes. However, I don't quite believe that: As you see in my bootchart [1], sreadahead starts and just has a tiny fraction of a second before other processes kick in and use I/O. In the readahead times it was the only active process for some 15 seconds, to avoid trashing with other processes. Martin [1] http://people.canonical.com/~pitti/tmp/tick-karmic-20090924-2.png -- Martin Pitt| http://www.piware.de Ubuntu Developer (www.ubuntu.com) | Debian Developer (www.debian.org) -- performs poorly on slow HDD https://bugs.launchpad.net/bugs/432089 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 432089] Re: performs poorly on slow HDD
On Wed, 2009-10-14 at 21:40 +, Pavel Rojtberg wrote: in case this bug cant be fix for karmic - are there any plans to revert to readahead and postpone sreadahead for lynx? It did a good job for HDDs and these are still used in the majority of the target systems. In the testing I've been able to do, readahead doesn't show any improvement. Scott -- Scott James Remnant sc...@ubuntu.com -- performs poorly on slow HDD https://bugs.launchpad.net/bugs/432089 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 432089] Re: performs poorly on slow HDD
Scott James Remnant [2009-10-15 17:38 -]: In the testing I've been able to do, readahead doesn't show any improvement. Hm, sreadahead does not do _any_ readahead for me right now. Is that due to a kernel change which would also break readahead? Martin -- Martin Pitt| http://www.piware.de Ubuntu Developer (www.ubuntu.com) | Debian Developer (www.debian.org) -- performs poorly on slow HDD https://bugs.launchpad.net/bugs/432089 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 432089] Re: performs poorly on slow HDD
On Thu, 2009-10-15 at 18:53 +, Martin Pitt wrote: Scott James Remnant [2009-10-15 17:38 -]: In the testing I've been able to do, readahead doesn't show any improvement. Hm, sreadahead does not do _any_ readahead for me right now. Is that due to a kernel change which would also break readahead? Not that I know of - which kernel are you using? Scott -- Scott James Remnant sc...@ubuntu.com -- performs poorly on slow HDD https://bugs.launchpad.net/bugs/432089 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
