I have an old unused rackmount box that I would like to move Mythbackend (only) to. Is the Atom 330 cpu in the box strong enough to host mythbackend? I'm going to leave the database and file space on another server and access it through NFS.
Maybe with a few channels, not many tuners and light guide data. I used an Atom D2550 with a GeForce GT 610 GPU for a combined frontend and backend system, but rwagner did not like that idea as described here. It worked quite well.
I ran 4 tuners on an old amd 64 way back when with a frontend on the same machine. No problem with OTA HD. Until recently, I used an old AMD 4 core Phenom 805 with the 6 tuners I ave had for years. I also ran a frontend with an old 800Mhz Duron. All a backend does is store the recorded ota mpeg2 file that it gets from the tuners. It takes hardly any power for that. An old single core 486 could probably handle it without a problem. I don't know how time flagging and/or transcoding would affect an atom cpu, but as long as you don't do tii much, there shouldn't be a problem. My current cpu is a cheap Ryzen 3 2200G 3.5GHz using the on board video. Just started recordind 6 programs. Here's the cpu speed of each core/
wes@mythfe0:~$ cat /proc/cpuinfo|grep MHz
cpu MHz : 1858.196
cpu MHz : 1873.678
cpu MHz : 2014.327
cpu MHz : 1750.106
Sopped all recordings and here normal state. As you can see there isn't much difference.
wes@mythfe0:~$ cat /proc/cpuinfo|grep MHz
cpu MHz : 1588.327
cpu MHz : 1596.844
cpu MHz : 1596.409
cpu MHz : 1596.711
BE/FE-Asrock AB350 Pro Ryzen 3 3200G, 6 atsc tuners. FE's-GF8200's Athlon II, Ryzen 3 2200G. Mythtv user since 2005.
I remember Durons! I had one two or three ages ago.
That is what I thought: Mythbackend is not CPU intensive. Sounds like there will be enough power on this little box. Now I can get my backend off of Centos 6 where it is such a pain to upgrade. And I'll put Mythweb on the box too. I know that won't be a burden.
I ran my backend on an Atom-based motherboard for a while. It worked well for most things, however it was only SATA 2. Recording too many streams at once would cause timeouts. Even doing a "check" of my RAID array would be dramatically slow--not because of the CPU, but because of the relatively slow disk i/o.
I'm going to leave the recordings on a way beefier server with lots of storage. I think the limitation will be Gig Ethernet. My understanding is that an HD stream really doesn't take that much.
Thanks for the answer, I'm not the original poster but was wondering about my Atom CPU build being powerful enough as well; that kind of info is surprisingly hard to find, most results you get on Google are related to computer CPUs and games...