[mythtv-users] Lag while browsing over network?

Josh TwoOneSix at thatclothingco.com
Wed Mar 14 15:23:45 UTC 2007

Steven Adeff wrote:
> On 3/12/07, Josh <TwoOneSix at thatclothingco.com> wrote:
>> William Pettersson wrote:
>>> So, I've recently implemented my latest remote frontend (connected to
>>> 27" LCD TV, finally my first frontend that is only a myth frontend).
>>> However, I feel that the frontend is laggy.  That is, if I'm browsing
>>> through the menus (just menus, and any menu from file browsers to
>>> setting up videos), everything has a 1-2 second lag.  Videos play fine
>>> over my network (100mbit), and I've tested it and can sustain 10.2MB/s.
>>> It's an AMD Athlon(tm) XP 2600+ with 256MB of RAM.  I'll admit it's a
>>> bit low on RAM, but it's currently (idling since I'm at work) and using
>>> just on 93MB
>>> enigma at mythbox ~ $ free -m
>>>               total       used       free     shared    buffers    cached
>>> Mem:           249        154         95          0          4        56
>>> -/+ buffers/cache:         93        156
>>> Swap:          980        325        654
>>> As to hard drive speeds, I get the following
>>> mythbox enigma # hdparm -tT /dev/hda
>>> /dev/hda:
>>>   Timing cached reads:   1476 MB in  2.00 seconds = 736.31 MB/sec
>>>   Timing buffered disk reads:  102 MB in  3.05 seconds =  33.49 MB/sec
>>> Not magnificent, but decent enough (I'd think) for running mythtv.
>>> The only slightly degraded performance factor that I can see is the
>>> video card, which is a 9600Pro running on the open-source Radeon drivers
>>> (ATI ones are crashing as usual for me).
>>> So, anyone know of any reason why this frontend would have slight lag
>>> while navigating menus?  My other frontend that is on the 100mbit
>>> network is noticably faster, and the only main differences are that is a
>>> beefier machine.  Any ideas?
>>> Also, anyone have a script that can take "screenshots" of movies, then
>>> set the screenshots as covers?  I've got a bunch of video clips (music
>>> videos) that I'd like to do this too.
>>> William
>> I actually have a similar issue, only in reverse... the beefier machine
>> is the one with the lag. Both are connected at 1000/full to the same 8
>> port GB switch. One is a Dell and the other is a VIA, the VIA lags and
>> the Dell doesn't... neither are running a backend. I guess I have just
>> learned to deal with it... my NFS and MySQL settings are "optimal" so
>> it's a weird (not crippling) issue... I'll follow this thread and hope
>> you figure something out.
> I just noticed my main frontend menu was slow due to logging being
> done in the backend. I lowered the amount of logging going on and the
> menu sped up. for some reason it never affected the frontend in my
> bedroom.
> it also got live TV working on both again...
Where/How did you disable the logging?


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