[mythtv-users] Memory needs

[Dan Wilga]

On 10/18/16 6:49 AM, Stuart Auchterlonie wrote:
> On 18/10/16 10:32, Tim Draper wrote:
>>
>>
>>   ---- On Tue, 18 Oct 2016 05:22:02 +0100 Mike Carron <jmcarron at gmx.com> wrote ----
>>   >            Is there a limit to the amount of         memory a headless myth backend can effectively use?       Memory is cheap enough that installing 16 or 32GB of RAM is not       prohibitive as long as it is useful to have that much.
>>   >      Thanks,
>>   >      mike
>>   >
>> fwiw, my BE is on a general-use home server (console/terminal only fedora23) so runs  a torrent client, file share, myth BE,  zoneminder, and owncloud. i seem to be runnning 6gb ram (i assume 4gb & 2gb modules) and consumption after 70days uptime is 23%. 4 FE's where only 1 typically gets used at any one time.
>> based on my loading, even 8gb would be a waste.
>>
>> that said, if i were using it as a VM host for a home lab, ram would be goood!
>>
> Yeah, it mainly depends on "what else" you want to put on it.
>
> I have 8Gb ram on my backend, and it's running both a production
> instance (0.28-fixes) and a development instance (master) and
> still have ~6Gb free memory.
>
> Most of the memory ends up being used by the buffer cache.
Also, keep in mind that the more memory you have, the more power it will 
draw and the more heat it will generate. These are pretty much constants 
which do not vary depending on how much RAM is being used.