[X2Go-User] Questions regarding mate/video quailty
Robert Dinse
nanook at eskimo.com
Wed Sep 9 20:15:48 CEST 2015
Herald, did you ever do the ping as I suggested while trying to watch
video to see if perhaps there are some bandwidth / latency issues?
Another thing you might do is run a top on the server and watch the
load while you're playing video, from a command line do a free and make sure
you're not swapping.
-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-
Eskimo North Linux Friendly Internet Access, Shell Accounts, and Hosting.
Knowledgeable human assistance, not telephone trees or script readers.
See our web site: http://www.eskimo.com/ (206) 812-0051 or (800) 246-6874.
On Wed, 9 Sep 2015, Harald Heigl wrote:
> Date: Wed, 9 Sep 2015 20:11:29 +0200
> From: Harald Heigl <Harald.Heigl1000+x2go at gmail.com>
> To: Robert Dinse <nanook at eskimo.com>
> Cc: Harald Heigl <Harald.Heigl1000+x2go at gmail.com>, x2go-user at lists.x2go.org
> Subject: Re: [X2Go-User] Questions regarding mate/video quailty
>
> Hi,
>
> My server is still a core2duo, perhaps this is the problem? Anyone
> here with similar "low" hardwaresettings?
> I don't know what preemtive settings mean either I have to admit, I
> got that information from fedora side. And I tried a real preemtive
> kernel for fedora, but I don't see any differences (perhaps a very
> small improvement, but this might be my subjective view).
> As stated in my last mail ping are beyond 0.5ms, nearly every ping
> before, during and after playing video with a handful spikes not
> excedding 2-3ms.
>
> Could it be my cpu, my graphic card on server side or my whole system?
> I don't think the client (cause I used another client) or the network
> (pings, network transfers ok) is the problem. But cpu is not over 20%
> too. I haven't configured anything in x2goserver, just standard.
> On my server nomachine is installed for testing if this matters
> (nomachine is faster than x2go, but not really fast). Are there any
> logs I can search. I even turned off selinux und firewall for testing
> but it had no impact, firewall shouldn't be the problem either, cause
> we go over ssh.
>
> No idea right now...
>
> Thanks,
> Harald
>
>
>
> 2015-09-07 23:30 GMT+02:00 Robert Dinse <nanook at eskimo.com>:
>>
>> I get real time video, server I7-2600 100mb/s backbone, client, old
>> MacPro-1 4CPU 4G of RAM running Ubuntu 15.04 with preemptive kernel on
>> 15mb/s Comcast cable modem, server running Fedora 22 with a pre-emptive
>> kernel, don't understand what "preemptive settings" mean, either kernel is
>> built so that it can be preempted or not. I can get 30 frame/second video
>> not 1/2 frames per
>> second. And even with a non-preemptive kernel I only see occasional
>> glitches
>> not 1 frame every ten second, so you've got something still really broken.
>> Did you try the ping I suggested?
>>
>> -_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-
>> Eskimo North Linux Friendly Internet Access, Shell Accounts, and Hosting.
>> Knowledgeable human assistance, not telephone trees or script readers.
>> See our web site: http://www.eskimo.com/ (206) 812-0051 or (800) 246-6874.
>>
>> On Mon, 7 Sep 2015, Harald Heigl wrote:
>>
>>> Date: Mon, 7 Sep 2015 23:24:42 +0200
>>>
>>> From: Harald Heigl <Harald.Heigl1000+x2go at gmail.com>
>>> To: x2go-user at lists.x2go.org
>>> Subject: Re: [X2Go-User] Questions regarding mate/video quailty
>>>
>>> Hi,
>>>
>>> I've got some more information: the kernel itself is not preemptiv,
>>> but there are some preemptiv settings set. But I used an alternative
>>> preemptive fedora kernel and found only small changes. What I found:
>>> - In vlc I have to deactivate overlay-mode
>>> - In Parole I have to set "No Xv" instead of "X11/XShm/Xv" in
>>> settings, videooutput.
>>>
>>> Parole works better than vlc and is at around 1-2 updates per second,
>>> which is far better than every 10 second, but still not really
>>> watchable.
>>> Perhaps there is still some wrong setting on my computer (caching the
>>> video-pictures?) or my server is at it's limit ...
>>> Though there are still 3Gb (of 6Gb) free, CPU is working at 10-30%,
>>> ping is nearly all the time lower than 0.5ms.
>>>
>>> Thanks so far,
>>> Are there any settings or players you prefer? Is a core2duo at 2.13Ghz
>>> too slow as server, which impact is on the graphic card (though I have
>>> no problems locally)
>>>
>>> Harald
>>>
>>> 2015-09-07 16:59 GMT+02:00 Robert Dinse <nanook at eskimo.com>:
>>>>
>>>>
>>>> Do a uname -a on the box and see if it has PREEMPT in the result
>>>> string.
>>>> If it does then it is and then I'd start looking at resource usage on the
>>>> box
>>>> or possibly network latency issues. Might do a ping from your client
>>>> while
>>>> watching a video and see if you get any network latency spikes.
>>>>
>>>>
>>>> -_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-
>>>> Eskimo North Linux Friendly Internet Access, Shell Accounts, and
>>>> Hosting.
>>>> Knowledgeable human assistance, not telephone trees or script readers.
>>>> See our web site: http://www.eskimo.com/ (206) 812-0051 or (800)
>>>> 246-6874.
>>>>
>>>> On Mon, 7 Sep 2015, Harald Heigl wrote:
>>>>
>>>>> Date: Mon, 07 Sep 2015 13:39:01 +0000
>>>>>
>>>>> From: Harald Heigl <Harald.Heigl1000+x2go at gmail.com>
>>>>> To: x2go-user at lists.x2go.org
>>>>> Subject: Re: [X2Go-User] Questions regarding mate/video quailty
>>>>>
>>>>> Hi,
>>>>>
>>>>> I don't think, that the client is the problem, cause I tested also a
>>>>> second
>>>>> x86-fedora22-client with exactly the same result, so I expect the server
>>>>> is
>>>>> the problem. I've asked at fedoraforum cause of preemptive kernel and
>>>>> they
>>>>> say the standard is still preemptive.
>>>>>
>>>>> With nomachine 4.0 video is much better (even if not 100%), but with
>>>>> nomachine I can't use virtual desktop for free.
>>>>>
>>>>> Any other suggestion? Server requirements, ... ?
>>>>>
>>>>> Thanks,
>>>>> Harald
>>>>>
>>>>> Robert Dinse <nanook at eskimo.com> schrieb am So., 6. Sep. 2015 22:06:
>>>>>
>>>>>>
>>>>>> I'm not familiar with your client machine but on the server side,
>>>>>> build
>>>>>> a kernel with kernel pre-emption enabled, for myself at least it helped
>>>>>> considerably.
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>> -_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-
>>>>>> Eskimo North Linux Friendly Internet Access, Shell Accounts, and
>>>>>> Hosting.
>>>>>> Knowledgeable human assistance, not telephone trees or script
>>>>>> readers.
>>>>>> See our web site: http://www.eskimo.com/ (206) 812-0051 or (800)
>>>>>> 246-6874.
>>>>>>
>>>>>> On Sun, 6 Sep 2015, Harald Heigl wrote:
>>>>>>
>>>>>>> Date: Sun, 6 Sep 2015 22:01:48 +0200
>>>>>>> From: Harald Heigl <Harald.Heigl1000+x2go at gmail.com>
>>>>>>> To: x2go-user at lists.x2go.org
>>>>>>> Subject: Re: [X2Go-User] Questions regarding mate/video quailty
>>>>>>>
>>>>>>> Hi,
>>>>>>>
>>>>>>> I have still the problem, that running video over x2go (per vlc or
>>>>>>> mates default paroleplayer) is really slow and laggy.
>>>>>>> server: Fedora 22, core2duo, x86, 4.0.1.19
>>>>>>> client: linaro, cubieboard, armhf, 4.0.5.0
>>>>>>>
>>>>>>> - I have testet with another x86 computer as client with no change
>>>>>>> - I have connected the server with the other x86 client directly to
>>>>>>> find out if the network has a problem, with no change
>>>>>>> - I have tried iperf, but the speed of my gigabit lan is fast
>>>>>>> - I have changed the graphiccard of my server (if that changes
>>>>>>> anything)
>>>>>>>
>>>>>>> I have to admit, that my server is an old core2duo/computer, with old
>>>>>>> radeoncard, ssd and 6GB RAM, but I just want to connect a single user
>>>>>>> from another room inside my home. (and at max one physical user)
>>>>>>> Fedora 22 was set up on the server 2 months ago with a fresh install
>>>>>>> and a lot of packages like libreoffice, 2 browsers, ... . x2goserver
>>>>>>> was set up from the repos.
>>>>>>> Running videos directly on the computer is no problem.
>>>>>>> Are there any limitations or something I can check (logs, something I
>>>>>>> can try out) or are there any minimum system requirements?
>>>>>>>
>>>>>>> Thanks,
>>>>>>> Harald
>>>>>>>
>>>>>>>
>>>>>>> 2015-08-24 22:30 GMT+02:00 Harald Heigl
>>>>>>> <Harald.Heigl1000+x2go at gmail.com
>>>>>>> :
>>>>>>>>
>>>>>>>>
>>>>>>>> Hi,
>>>>>>>>
>>>>>>>> Thanks for pointing this out. I had x2goserver 4.0.1.19 on fedora and
>>>>>>>> 4.0.1.xx on my client, which seemed to be an old version. I assumed
>>>>>>>> server and client-version belong together. I installed 4.0.5.0 (from
>>>>>>>> ubuntu armhf repos) on the client but had the same difficulties,
>>>>>>>> eventhough it was better and more fluent now.
>>>>>>>> I'll see if I can find another x86 computer and try it from there. I
>>>>>>>> think my client is the problem (or the armhf-packages not 100% the
>>>>>>>> right one for cubieboard).
>>>>>>>> I will need some days to identify the guilty part, I'll write her
>>>>>>>> again.
>>>>>>>>
>>>>>>>> Thanks for all the information,
>>>>>>>> Harald
>>>>>>>>
>>>>>>>> 2015-08-24 19:16 GMT+02:00 Orion Poplawski <orion at cora.nwra.com>:
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> On 08/24/2015 06:37 AM, Harald Heigl wrote:
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> Hi,
>>>>>>>>>>
>>>>>>>>>> Thanks for the information I just used the
>>>>>>>>>> fedora(server)/linaro(client) included repos and they have both
>>>>>>>>>> some
>>>>>>>>>> 4.0.1 ...
>>>>>>>>>> Fedora won't be a problem (I can see a x2go-repo in the wiki), I
>>>>>>>>>> hope
>>>>>>>>>> I find some armel-builds for my cubieboard. any hints? (sometimes
>>>>>>>>>> rasbperry-builds work as well)
>>>>>>>>>>
>>>>>>>>>> I'll test it at home a little bit later and tell you.
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> You seem to be mixing client and server versions here a bit. Fedora
>>>>>>
>>>>>>
>>>>>> has
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> x2goserver 4.0.1.19 (latest) and x2goclient 4.0.5.0 (latest). The
>>>>>>
>>>>>>
>>>>>> version
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> numbers are not linked.
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> --
>>>>>>>>> Orion Poplawski
>>>>>>>>> Technical Manager 303-415-9701 x222
>>>>>>>>> NWRA, Boulder/CoRA Office FAX: 303-415-9702
>>>>>>>>> 3380 Mitchell Lane orion at nwra.com
>>>>>>>>> Boulder, CO 80301 http://www.nwra.com
>>>>>>>
>>>>>>>
>>>>>>> _______________________________________________
>>>>>>> x2go-user mailing list
>>>>>>> x2go-user at lists.x2go.org
>>>>>>> http://lists.x2go.org/listinfo/x2go-user
>>>>>>>
>>>>>>
>>>>>
>>>>
>>> _______________________________________________
>>> x2go-user mailing list
>>> x2go-user at lists.x2go.org
>>> http://lists.x2go.org/listinfo/x2go-user
>>>
>>
>
More information about the x2go-user
mailing list