[X2Go-User] Questions regarding mate/video quailty
Harald Heigl
Harald.Heigl1000+x2go at gmail.com
Wed Sep 9 21:54:56 CEST 2015
Ok I try to shorten my mails, since the information you are asking for
is in my last mail (and in some mails before):
- ping: < 0.5ms (some peaks every some minutes at 2-3ms), before,
during and after video
- iperf (600-700Mbit/s), measured with no load
- cpu of server at 15-20% while watching video
- memory: approx 3-4GB (of 6GB) used, swap all free
Could there be a caching problem, is vlc or parole the "wrong" videoplayer?
Thanks,
Harald
2015-09-09 20:15 GMT+02:00 Robert Dinse <nanook at eskimo.com>:
>
> 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.
>
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> Knowledgeable human assistance, not telephone trees or script readers.
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>
> 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
>>>>>>>>
>>>>>>>
>>>>>>
>>>>>
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>>>>
>>>
>>
>
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