[Bug 451169] Re: Performance really dropped with 2.6.31-8-rt
Eric, Hoping you understanding that I can't let that bug open on linux-rt neither re-enable Dynamic Ticks because turn it off lead to a lot of benefits. So we have three way: 1) Perhaps is it the right time to give a look on Linux _native_ reaper applications? ;) In that case I'll close this bug. 2) Add nohz=on kernel command-line parameter into grub configuration files to add it automatically (also after kernel updates). Again also in that case I'll close this bug. 3) Or do you prefer continue to use Reaper on Wine? So in that case I move this bug against Wine but, sincerely, I don't think that receive a lot of consideration (I suppose that almost all people run Window applications on Wine use -generic kernel). Please let me know. Thanks! -- Performance really dropped with 2.6.31-8-rt https://bugs.launchpad.net/bugs/451169 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 451169] Re: Performance really dropped with 2.6.31-8-rt
I agree that this seems very specific to Wine, and perhaps even certain plugins in Reaper under wine. I've been playing with other projects and they seem to play fine still. It was only because I had been looking at a certain old project with some really cpu intensive effects going that caused me to notice this downturn in performance. I'm not even sure it is worth my using the nohz=on parameter, as it is clear that realtime performance is improved without it (except maybe for this case, with these vsts). If I start running into this problem regularly with Reaper, at least i know how to fix it now. Definitely too many variables between wine, wineasio, Reaper and multiple third party vsts to be worth trying to figure out why no dynamic ticks makes a difference. I'll be giving Ardour another good look when it hits 3.0 anyway. Certainly close this bug. And thanks for all of the rapid help. -- Performance really dropped with 2.6.31-8-rt https://bugs.launchpad.net/bugs/451169 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 451169] Re: Performance really dropped with 2.6.31-8-rt
So I close this bug! Thanks Eric and hanzomon4! ** Changed in: linux-rt (Ubuntu) Status: New = Invalid -- Performance really dropped with 2.6.31-8-rt https://bugs.launchpad.net/bugs/451169 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 451169] Re: Performance really dropped with 2.6.31-8-rt
** Attachment added: XsessionErrors.txt http://launchpadlibrarian.net/33649997/XsessionErrors.txt -- Performance really dropped with 2.6.31-8-rt https://bugs.launchpad.net/bugs/451169 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 451169] Re: Performance really dropped with 2.6.31-8-rt
hanzomon4, Reboot your machine inserting in GRUB menu nohz=on to reenable Dyamic Ticks. So report results and attach the dmesg output. Thanks! ** Package changed: linux-meta-rt (Ubuntu) = linux-rt (Ubuntu) ** Changed in: linux-rt (Ubuntu) Status: New = Incomplete -- Performance really dropped with 2.6.31-8-rt https://bugs.launchpad.net/bugs/451169 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 451169] Re: Performance really dropped with 2.6.31-8-rt
Ok I added the nohz=on option and ran hydrogen, qsynth, and rosegarden all synced with ardour through jacktrans(via qjackctl). I recorded the audio from hydrogen and qsynth into ardour(2 mono tracks). I also had evolution, gwibber, empathy and skype running. I only experienced 3 xruns at 5.something latency. In short performance was great, no slowdown in the UI... all butter I attached the requested dmesg ** Attachment added: requested dmesg http://launchpadlibrarian.net/33651730/dmesg.txt -- Performance really dropped with 2.6.31-8-rt https://bugs.launchpad.net/bugs/451169 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 451169] Re: Performance really dropped with 2.6.31-8-rt
Whoa!! WAIT... I just re ran the same test with out the nohz=on option and performance was remarkable! I don't know what happened the first time I tried it but it's great now... same test zero xruns! I'm attaching the from dmesg from this test as well. ** Attachment added: dmesg without the nohz=on option http://launchpadlibrarian.net/33652434/dmesgwithoutnohz%3Don.txt -- Performance really dropped with 2.6.31-8-rt https://bugs.launchpad.net/bugs/451169 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 451169] Re: Performance really dropped with 2.6.31-8-rt
Good, So I close this bug. Thanks! ** Changed in: linux-rt (Ubuntu) Status: Incomplete = Invalid -- Performance really dropped with 2.6.31-8-rt https://bugs.launchpad.net/bugs/451169 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 451169] Re: Performance really dropped with 2.6.31-8-rt
It may be too early to close this. I have been running Reaper with wineasio with the last two RT-kernels with absolutely great results. After the upgrade to -8 I now have many xruns, crackling and sound dropouts. Ansolutely terrible performance on the same project that still plays perfectly with RT-kernel -6 and -7 (so not due to the recent Wine update). I tested with the nohz=on option and everything is back to normal. At least in my case this makes a huge differense. dmesg output attached from when I added nohz=on to the grub boot line. ** Attachment added: dmesg.txt http://launchpadlibrarian.net/33655465/dmesg.txt -- Performance really dropped with 2.6.31-8-rt https://bugs.launchpad.net/bugs/451169 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 451169] Re: Performance really dropped with 2.6.31-8-rt
** Changed in: linux-rt (Ubuntu) Status: Invalid = Confirmed -- Performance really dropped with 2.6.31-8-rt https://bugs.launchpad.net/bugs/451169 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 451169] Re: Performance really dropped with 2.6.31-8-rt
Yeah something is wrong with the kernel that gets fixed when you enable this option. Try booting without the nohz=on option and see if you get even better performance. If that's the case then something is wrong somewhere and mysteries are no good. -- Performance really dropped with 2.6.31-8-rt https://bugs.launchpad.net/bugs/451169 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 451169] Re: Performance really dropped with 2.6.31-8-rt
Rebooting again without appending nohz=on to the grub line has brought the poor performance back. Definitely the change to dynamic ticks being off by default seems to make a huge difference for realtime audio on my thinkpad. Funny that a few releases ago (was it Hardy?) it was completely the opposite for a while. -- Performance really dropped with 2.6.31-8-rt https://bugs.launchpad.net/bugs/451169 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 451169] Re: Performance really dropped with 2.6.31-8-rt
Eric, Sorry but the bug report can't be marked as Confirmed because only you incur in this issue (at the moment, at least). Please provide: 1) dmesg without nohz=on kernel command-line parameter 2) output of cyclictest -n -t3 -p99 with and without nohz=on (cyclictest is included into rt-tests package) FYI Dynanic Ticks are off by default since Hardy (included). Thanks! ** Changed in: linux-rt (Ubuntu) Status: Confirmed = New -- Performance really dropped with 2.6.31-8-rt https://bugs.launchpad.net/bugs/451169 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 451169] Re: Performance really dropped with 2.6.31-8-rt
Here ia the dmesg without the nohz=on option. Regarding the cyclictest command - how long does it run for. It has been going for a while and I'm not sure if you just need averages for a certain amount of time, or will it eventually finish? ** Attachment added: dmesg_without_nohz.txt http://launchpadlibrarian.net/33673315/dmesg_without_nohz.txt -- Performance really dropped with 2.6.31-8-rt https://bugs.launchpad.net/bugs/451169 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 451169] Re: Performance really dropped with 2.6.31-8-rt
Eric, Run cyclictest for one minute meanwhile launch two or three heavy applications (as like Firefox, OpenOffice and GIMP). Thanks! -- Performance really dropped with 2.6.31-8-rt https://bugs.launchpad.net/bugs/451169 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 451169] Re: Performance really dropped with 2.6.31-8-rt
Just base on output for about 5-10 minutes of cyclictest Without adding nohz=on at boot: All three lines had minimum of 4, avg of 11 and maximum about 700. When adding nohz=on at boot: T0 had a min of 5, avg of 33 and max about 700. T1 had a min of 5, avg of 25 and max about 700. T2 had a min of 5, avg of 17 and max of about 700. If I'm interpreting this right, it does seem that realtime performance is better without the nohz=on being used. But when it comes to playback of a medium sized project in Reaper running under wine, performance is much better with nohz=on or with the two previous rt-kernels. Maybe it is wine or wineasio that aren't playing nice with the dynamic ticks being off. -- Performance really dropped with 2.6.31-8-rt https://bugs.launchpad.net/bugs/451169 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 451169] Re: Performance really dropped with 2.6.31-8-rt
Could be.. I don't use wine really... but performance in my other apps are fine now. Is it only wine or wine apps that seem crappy? If so perhaps filing a bug against wine may be the best course of action. By the way thanks to all of you for helping to work this out. -- Performance really dropped with 2.6.31-8-rt https://bugs.launchpad.net/bugs/451169 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
