Re: Fedora 16 feels slow
On Wed, 2011-09-14 at 14:16 -0700, Adam Williamson wrote: The 'fix' for the F16 kernel is simply that, with the rc6 build, debugging has been disabled. debugging is never disabled in Rawhide kernels, so if debugging overhead is your problem, no Rawhide kernel is going to cure it. To check if this is the case, just grab the latest F16 kernel - *not* the latest Rawhide kernel - and see if that improves things. FWIW I dloaded rc6 an although my machine wasn't especially slow it is now very snappy and I can finally enjoy my SSD as I should have. Also with the debug kernels my machine used to go in thermal shutdown 2/3 times a day while compiling or yum installing. It hasn't happened so far. Simo. -- Simo Sorce * Red Hat, Inc * New York -- devel mailing list devel@lists.fedoraproject.org https://admin.fedoraproject.org/mailman/listinfo/devel
Fedora 16 feels slow
Hi Fedora people. I have just installed F16 on my Asus 522 (a netbook) and everything works regarding hw. Good work everybody! However, compared to F15 everything feels really slow. Typing this has a delay of about .5 seconds for every character in Evolution, and logging into Gnome Shell takes a couple of minutes. Moving to another workspace takes a couple of seconds. Does anyone else get the same performance and is it expected to improve? I can not see that anything is hogging power in the system monitor, but there might be something I do not know that is slowing this machine down. Any info is appreciated! /Andreas -- devel mailing list devel@lists.fedoraproject.org https://admin.fedoraproject.org/mailman/listinfo/devel
Re: Fedora 16 feels slow
On Wed, Sep 14, 2011 at 4:02 PM, Andreas Tunek andreas.tu...@gmail.com wrote: Hi Fedora people. I have just installed F16 on my Asus 522 (a netbook) and everything works regarding hw. Good work everybody! However, compared to F15 everything feels really slow. Typing this has a delay of about .5 seconds for every character in Evolution, and logging into Gnome Shell takes a couple of minutes. Moving to another workspace takes a couple of seconds. Does anyone else get the same performance and is it expected to improve? I can not see that anything is hogging power in the system monitor, but there might be something I do not know that is slowing this machine down. Any info is appreciated! Try the 3.1-rc6 kernel sitting in bodhi waiting to be pushed to f16 stable. josh -- devel mailing list devel@lists.fedoraproject.org https://admin.fedoraproject.org/mailman/listinfo/devel
Re: Fedora 16 feels slow
On Wed, Sep 14, 2011 at 16:03:38 -0400, Josh Boyer jwbo...@gmail.com wrote: Try the 3.1-rc6 kernel sitting in bodhi waiting to be pushed to f16 stable. While I don't have hard numbers running that kernel seems to help. My rawhide system was so slow that I rebuilt that kernel (though probably I could have just used it) for f17 and am now seeing a lot of improvement there. The slow down is so bad for f17 at this time, that I plan to use kernels without debugging for the time being. I don't remember past rawhide kernels being this much slower. -- devel mailing list devel@lists.fedoraproject.org https://admin.fedoraproject.org/mailman/listinfo/devel
Re: Fedora 16 feels slow
On Wed, 2011-09-14 at 15:01 -0500, Bruno Wolff III wrote: On Wed, Sep 14, 2011 at 16:03:38 -0400, Josh Boyer jwbo...@gmail.com wrote: Try the 3.1-rc6 kernel sitting in bodhi waiting to be pushed to f16 stable. While I don't have hard numbers running that kernel seems to help. My rawhide system was so slow that I rebuilt that kernel (though probably I could have just used it) for f17 and am now seeing a lot of improvement there. The slow down is so bad for f17 at this time, that I plan to use kernels without debugging for the time being. I don't remember past rawhide kernels being this much slower. They weren't; see my numbers in the related bug (https://bugzilla.redhat.com/show_bug.cgi?id=735268 ). The debug overhead appears to have gotten much heavier in 3.1. -- Adam Williamson Fedora QA Community Monkey IRC: adamw | Twitter: AdamW_Fedora | identi.ca: adamwfedora http://www.happyassassin.net -- devel mailing list devel@lists.fedoraproject.org https://admin.fedoraproject.org/mailman/listinfo/devel
Re: Fedora 16 feels slow
On Wed, Sep 14, 2011 at 13:46:40 -0700, Adam Williamson awill...@redhat.com wrote: They weren't; see my numbers in the related bug (https://bugzilla.redhat.com/show_bug.cgi?id=735268 ). The debug overhead appears to have gotten much heavier in 3.1. I added myself to that bug, though I wasn't really seeing that much of a slow down in graphics. (I have an rv280 which might not have the issue that later radeon cards were having.) My issue seems to be related to disk I/O. I am not sure if it is heavier cpu use in journalling, raid or encryption or if the actual I/O is slower. But it seems that I/O heavy activities such as yum updates and kernel builds are taking several times longer than they were a few weeks ago (in rawhide). -- devel mailing list devel@lists.fedoraproject.org https://admin.fedoraproject.org/mailman/listinfo/devel
Re: Fedora 16 feels slow
On Wed, Sep 14, 2011 at 13:28, Bruno Wolff III br...@wolff.to wrote: On Wed, Sep 14, 2011 at 13:46:40 -0700, Adam Williamson awill...@redhat.com wrote: They weren't; see my numbers in the related bug (https://bugzilla.redhat.com/show_bug.cgi?id=735268 ). The debug overhead appears to have gotten much heavier in 3.1. I added myself to that bug, though I wasn't really seeing that much of a slow down in graphics. (I have an rv280 which might not have the issue that later radeon cards were having.) My issue seems to be related to disk I/O. I am not sure if it is heavier cpu use in journalling, raid or encryption or if the actual I/O is slower. But it seems that I/O heavy activities such as yum updates and kernel builds are taking several times longer than they were a few weeks ago (in rawhide). I'm using the latest rawhide kernel. During times of heavy I/O the system becomes very unresponsive. The cursor will stop moving long enough to count to between 5 and 10. I know it happens with heavy network I/O so it might be the particular driver in my case. Not sure if the slow-down is true for other types of I/O. This has been true for all of the recent rawhide kernels. darrell -- devel mailing list devel@lists.fedoraproject.org https://admin.fedoraproject.org/mailman/listinfo/devel
Re: Fedora 16 feels slow
On Wed, 2011-09-14 at 14:00 -0700, darrell pfeifer wrote: On Wed, Sep 14, 2011 at 13:28, Bruno Wolff III br...@wolff.to wrote: On Wed, Sep 14, 2011 at 13:46:40 -0700, Adam Williamson awill...@redhat.com wrote: They weren't; see my numbers in the related bug (https://bugzilla.redhat.com/show_bug.cgi?id=735268 ). The debug overhead appears to have gotten much heavier in 3.1. I added myself to that bug, though I wasn't really seeing that much of a slow down in graphics. (I have an rv280 which might not have the issue that later radeon cards were having.) My issue seems to be related to disk I/O. I am not sure if it is heavier cpu use in journalling, raid or encryption or if the actual I/O is slower. But it seems that I/O heavy activities such as yum updates and kernel builds are taking several times longer than they were a few weeks ago (in rawhide). I'm using the latest rawhide kernel. During times of heavy I/O the system becomes very unresponsive. The cursor will stop moving long enough to count to between 5 and 10. I know it happens with heavy network I/O so it might be the particular driver in my case. Not sure if the slow-down is true for other types of I/O. This has been true for all of the recent rawhide kernels. The 'fix' for the F16 kernel is simply that, with the rc6 build, debugging has been disabled. debugging is never disabled in Rawhide kernels, so if debugging overhead is your problem, no Rawhide kernel is going to cure it. To check if this is the case, just grab the latest F16 kernel - *not* the latest Rawhide kernel - and see if that improves things. -- Adam Williamson Fedora QA Community Monkey IRC: adamw | Twitter: AdamW_Fedora | identi.ca: adamwfedora http://www.happyassassin.net -- devel mailing list devel@lists.fedoraproject.org https://admin.fedoraproject.org/mailman/listinfo/devel
Re: Fedora 16 feels slow
On Wed, Sep 14, 2011 at 14:16:16 -0700, Adam Williamson awill...@redhat.com wrote: The 'fix' for the F16 kernel is simply that, with the rc6 build, debugging has been disabled. debugging is never disabled in Rawhide kernels, so if debugging overhead is your problem, no Rawhide kernel is going to cure it. To check if this is the case, just grab the latest F16 kernel - *not* the latest Rawhide kernel - and see if that improves things. I think the degree of slow down now, compared with the past, makes this issue a bug. If things are like they are now, I won't be running debug kernels on my rawhide systems. It costs me too much time. It would be nice to know why things changed, as maybe some adjustments could be made (or a bug fixed) so that debug kernels can provide useful information without making such a big impact. -- devel mailing list devel@lists.fedoraproject.org https://admin.fedoraproject.org/mailman/listinfo/devel
Re: Fedora 16 feels slow
On Wed, Sep 14, 2011 at 03:59:02PM -0500, Bruno Wolff III wrote: I think the degree of slow down now, compared with the past, makes this issue a bug. If things are like they are now, I won't be running debug kernels on my rawhide systems. It costs me too much time. It would be nice to know why things changed, as maybe some adjustments could be made (or a bug fixed) so that debug kernels can provide useful information without making such a big impact. my last comment from the bug asked for someone to provide perf output. If we can at least narrow it down to which option is causing people pain, maybe we can start to investigate why. Dave -- devel mailing list devel@lists.fedoraproject.org https://admin.fedoraproject.org/mailman/listinfo/devel
Re: Fedora 16 feels slow
On Wed, Sep 14, 2011 at 17:28:10 -0400, Dave Jones da...@redhat.com wrote: On Wed, Sep 14, 2011 at 03:59:02PM -0500, Bruno Wolff III wrote: I think the degree of slow down now, compared with the past, makes this issue a bug. If things are like they are now, I won't be running debug kernels on my rawhide systems. It costs me too much time. It would be nice to know why things changed, as maybe some adjustments could be made (or a bug fixed) so that debug kernels can provide useful information without making such a big impact. my last comment from the bug asked for someone to provide perf output. If we can at least narrow it down to which option is causing people pain, maybe we can start to investigate why. I'll try to run the perf stuff over the weekend. Kernel compiles are pretty slow on my hardware, so I am not going to run through all possible config options, though I can try a couple if there are some prime suspects. (Normally it's a couple of hours to build one, but the last one took all night.) -- devel mailing list devel@lists.fedoraproject.org https://admin.fedoraproject.org/mailman/listinfo/devel
