[mythtv-users] How much memory do you have installed?

[Joseph DeGraw]

On 01/08/2014 11:33 AM, Andre Newman wrote:
> On 8 Jan 2014, at 15:34, Joseph DeGraw <coffee412 at comcast.net> wrote:
>
>> My girlfriend came to me again about problems with burning DVD's. I know
>> in the past I have had some real difficulties with mytharchive and didnt
>> look forward to chasing down the latest gremlin in the works. But I
>> started looking at the mythburn.log and noticed that the decoder failed
>> or quit unexpectedly. So, I looked in the kern.log for further clues and
>> saw that I totally ran out of memory and swap space! This is the first
>> time I have seen this happen.
>>
>> My mythtv box consists of a 6 core amd processor and 4 gigs of ram, a
>> ceton 4 port card. Iam running mythbuntu.
>>
>> So, I have ordered more memory (another 4 gigs) to pump it up to 8 gigs
>> total. Now I sit and wonder how much memory do others have installed in
>> their home mythboxes? Have you ever ran out before like I just did?
> I had a 5GB MythTV backend for a number of years, ran fine 6 tuners, 7 disks nearly all HD recordings.
>
> When I upgraded the motherboard I had 8GB, that ran noticeably quicker but with a much faster CPU, an i7, when I use a desktop on the machine for some other tasks it was very responsive and the occasional recording glitches I used to have with the old board went away. 
>
> I stole 4GB from that machine just before Christmas when I replaced a failed frontend PC and it's been a little laggy ever since, I nearly ordered some more memory for it earlier today...
>
>
>> To be fair, My girlfriend stresses the heck out of the box Im sure. Many
>> times we are recording on all available tuners (4) and comflagging,
>> watching stuff, Remote mythweb activity and burning DVD's.
> Yes, similar here, except for commflagging, doesn't work too well in the UK and I create ipad compatible 720p versions of shows rather than DVDs but the load is likely similar. 
>
> I haven't seen the exact wedged up scenario you describe but I feel that a busy Mythbackend with lots of tuners needs >4GB, probably 6GB is about right, certainly 8GB never hit swap for me :-)
>
>> Anyone else have this issue before? :) Just curious.
>>
>> jdegraw
>>
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Thanks for the reply.

Yes, I guess with everything that is running on that machine more memory
is needed. I did order some and its due in by the weekend. I got 4 gigs
of DDR3 - the same thats already in there:

http://www.newegg.com/Product/Product.aspx?Item=N82E16820231277

Incidently, I think it was ben that mentioned Munin for monitoring
resources. It looks a bit complicated to setup and Ill have to look it
over more. Right now I just run top and can see that my memory is being
chewed up alot:

Mem:   3932236k total,  3629224k used,   303012k free,   102876k buffers
Swap:  4141052k total,   485760k used,  3655292k free,  2408456k cached

Have to remember Im running a ubuntu desktop so I bet there is alot of
mem use there. I would change it but I want to stay kinda stock.

Thanks for the reply,

jdegraw