[mythtv-users] Mythtv gentoo question

Robin Gilks g8ecj at gilks.org
Sat Jan 24 03:53:55 UTC 2015


> On Fri, Jan 23, 2015 at 9:27 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.
>
> I'd be interested in whether that is typical behavior on other
> distros.  I see that my virtual size for mythbacked is up to about
> 4.7G, but resident size is only 200M or so (and I've patched my
> mythbackend to use larger buffers - that isn't in the Gentoo package).
> I'm not sure what causes the virtual memory use, but since the kernel
> oversubscribes that I don't think it should hurt anything unless it
> gets REALLY bad.
>

Sounds very similar to my Gentoo backend - 100M resident, 3.8G VSZ after 5
days. I've seen much bigger numbers in the past without an issue. Thats
feeding 1Tb of raid5 partition from 2 DVB-S, 1 DVB-T tuners and an analog
connection for an STB.

-- 
Robin Gilks





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