[mythtv-users] Mythtv gentoo question

[david brooke]

On Sat, Jan 24, 2015 at 8:16 AM, david brooke <david2012brooke at gmail.com>
wrote:

> On Sat, Jan 24, 2015 at 7:53 AM, Mark Perkins <perkins1724 at hotmail.com>
> wrote:
>
>>
>>
>> On 24 Jan 2015, at 11:09 pm, "david brooke" <david2012brooke at gmail.com>
>> wrote:
>>
>> On Sat, Jan 24, 2015 at 7:32 AM, david brooke <david2012brooke at gmail.com>
>> wrote:
>>
>>> On Sat, Jan 24, 2015 at 12:46 AM, Mark Perkins <perkins1724 at hotmail.com>
>>> wrote:
>>>
>>>>
>>>>
>>>> > On 24 Jan 2015, at 2:46 pm, "Rich Freeman" <
>>>> r-mythtv at thefreemanclan.net> wrote:
>>>> >
>>>> >> On Fri, Jan 23, 2015 at 9:54 PM, Mark Perkins <
>>>> perkins1724 at hotmail.com> wrote:
>>>> >>
>>>> >>> On 24 Jan 2015, at 12:58 pm, "david brooke" <
>>>> david2012brooke at gmail.com> wrote:
>>>> >>>
>>>> >>> I just completed a gentoo install with Mythtv. After running Mythtv
>>>> overnight I noticed that the memory usage increased from 350M to over 1G.
>>>> What can I do to limit the memory usage? I will post my info over on Gentoo
>>>> forums and add that url here.
>>>> >>> Thanks
>>>> >>> _______________________________________________
>>>> >>
>>>> >> You didn't say which version of MythTV you are running. IIRC about
>>>> 6-12m ago there were a couple of memory leaks found and fixed. Perhaps you
>>>> are running older version?
>>>> >
>>>> > Do you know when that was?
>>>> >
>>>> From a quick search it looks like the stuff I remember was early June
>>>> 2014, around 27.2.
>>>>
>>>> The bigger leaks were in Master but there were a couple of small leaks
>>>> in 0.27 as well.
>>>>
>>>> http://lists.mythtv.org/pipermail/mythtv-users/2014-June/364739.html
>>>>
>>>> http://lists.mythtv.org/pipermail/mythtv-users/2014-June/364764.html
>>>> _______________________________________________
>>>> mythtv-users mailing list
>>>> mythtv-users at mythtv.org
>>>> http://lists.mythtv.org/mailman/listinfo/mythtv-users
>>>> http://wiki.mythtv.org/Mailing_List_etiquette
>>>> MythTV Forums: https://forum.mythtv.org
>>>>
>>>
>>> Here is the Mythtv version I'm using: media-tv/mythtv-0.27.4_p20141018
>>>
>>> I did another gentoo install with just KDE and Mythtv and still have the
>> memory issue.
>> The process I use:
>> Start Mythtv and goto the watch tv recordings - memory = 350M
>> Select recording to watch - memory increases =375M
>> Exit recording after about a minute of viewing - memory = 370M
>> Select recording to watch - memory increases =421M
>> I continue this for a few more recordings and the memory continues to
>> increase to 550M in just 5 minutes.
>>
>> _______________________________________________
>>
>>
>> How does 550M compare to the total memory available on your system? There
>> has been some detailed talk on this list previously about memory usage. One
>> comment I recall was that often systems will cache heavily if there is
>> memory because, well, why not - unused memory is wasted memory. I don't
>> know if this is what your seeing? Maybe others will comment? How are you
>> measuring memory usage?
>>
>> _______________________________________________
>> mythtv-users mailing list
>> mythtv-users at mythtv.org
>> http://lists.mythtv.org/mailman/listinfo/mythtv-users
>> http://wiki.mythtv.org/Mailing_List_etiquette
>> MythTV Forums: https://forum.mythtv.org
>>
>>
> There is 8G of ram available on the gentoo system. I'm using the system
> monitor on KDE to measure memory usage.
>
> I ran the same mythtv test on another computer with arch w/ 8G ram and
> basically got the same result of increasing memory use. The memory usage
> started out 190M and ended up at 460M.
>

So I have tested three mythtv systems: 1-gentoo and 2-arch
All exhibit the same result of increased memory use while switching between
tv recordings. Mark Perkins has suggested that this memory use behavior is
normal. If that is the case then I have no problem, only a better
understanding of how mythtv works now.
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