DJX 18 Posted October 6, 2021 Share Posted October 6, 2021 Hi all Sorry for another thread on this topic but looking for advice. Thanks to Cayers for responding to a DM already. My setup: DS920+ with 2x4gb WD 5400rpm Red Plus and 20GB RAM. Emby Beta installed with a library of home photos and videos. LAN clients: Samsung TV App & Android App & Web Client Remote Clients: Safari Web Clients & Chrome Web Client & Android App & Web Client Problem Statement: Buffering on TV during direct play of videos and laggy when viewing photos. Remote clients also get lag due to SW transcoding of MP4 videos. So, how can improve this for as cheap as possible? I plan to get the nvidia shield pro or firestick to use with my TV because the Samsung TV player bug is causing phone videos to be stretched during playback. How can I improve loading of the images and transcoding of videos? Shall I buy a USB3 drive and install emby server on that and/or map to that drive for transcoding and cache instead? How do I know how big the USB drive should be? When my content grows does the drive need to bigger aswell ? What is suitable when my content is about 4GB of photos and videos? Any other options apart from m2 ssd for cache? Link to comment Share on other sites More sharing options...
Carlo 4330 Posted October 6, 2021 Share Posted October 6, 2021 (edited) Hi again, Do you have hardware transcoding turned on in Emby on the Synology 920+? As per our PMs I run this same box and do not have any transcode issues, even when doing tone-mapping of 4K HDR media. I use the Live TV/DVR feature a lot as well. I should add that I've added 2 NVMe SSD "drives" to the 920+ setup in RAID for read/write caching. So let us know what your transcoding setup is presently set to and we'll take it from there. Edited October 6, 2021 by cayars 1 Link to comment Share on other sites More sharing options...
Happy2Play 8281 Posted October 6, 2021 Share Posted October 6, 2021 Not a Synology user but performance is night and day when you compare Emby running on HDD vs SSD/NVME. 3 Link to comment Share on other sites More sharing options...
DJX 18 Posted October 6, 2021 Author Share Posted October 6, 2021 I don't have Premiere anymore so no HW transcoding. So I would like to see how I can get best benefits with SW transcoding which is mainly hitting my remote users. For locally, I should be direct playing and my TV is hooked up to the router via Ethernet. Link to comment Share on other sites More sharing options...
DJX 18 Posted October 6, 2021 Author Share Posted October 6, 2021 18 minutes ago, Happy2Play said: Not a Synology user but performance is night and day when you compare Emby running on HDD vs SSD/NVME. So that will help with my home photos loading faster especially ? Link to comment Share on other sites More sharing options...
FrostByte 5049 Posted October 6, 2021 Share Posted October 6, 2021 Some good suggestions so far. The best solution of course is just don't transcode if you can at all possible. Use compatible codecs and subtitle formats for your clients, or use a different client. Transcoding because of bandwidth probably won't be avoidable unless you have multiple resolutions of your movies (4K for you and 1080p for your remote users). Buy Premiere. It's a shame you have a 4K gpu and aren't using it to its fullest when transcoding. Here's a couple things you can do for free: Adjust the Emby cache level. With 20gb of ram you should have plenty to raise it to 1024mb. Vacuum your DB Link to comment Share on other sites More sharing options...
DJX 18 Posted October 6, 2021 Author Share Posted October 6, 2021 (edited) I tried emby premiere and will debate buying lifetime. I only have home photos and videos so no films or anything with subtitles etc. I will look at upping the cache. In terms of vacuuming the DB. I did it once before. Does it need to be a regular task? Thanks Edited October 6, 2021 by DJX Link to comment Share on other sites More sharing options...
DJX 18 Posted October 6, 2021 Author Share Posted October 6, 2021 Please can you advise how to up cache on a synology Link to comment Share on other sites More sharing options...
FrostByte 5049 Posted October 6, 2021 Share Posted October 6, 2021 To tell you the truth with as little it sounds you use it I'm not sure frequent vacuuming will change much. Setting the cache might help images load faster Link to comment Share on other sites More sharing options...
FrostByte 5049 Posted October 6, 2021 Share Posted October 6, 2021 (edited) 1 hour ago, DJX said: Please can you advise how to up cache on a synology Are you on stable, or beta? The latest beta allows you to do it within Emby server control panel. If stable then you need to update the system.xml on your NAS Edited October 7, 2021 by FrostByte changed ini to xml Link to comment Share on other sites More sharing options...
FrostByte 5049 Posted October 6, 2021 Share Posted October 6, 2021 (edited) If using stable version of Emby look for and modify this line in the system.xml <DatabaseCacheSizeMB>1024</DatabaseCacheSizeMB> Edited October 7, 2021 by FrostByte changed ini to xml Link to comment Share on other sites More sharing options...
DJX 18 Posted October 6, 2021 Author Share Posted October 6, 2021 7 minutes ago, FrostByte said: Are you on stable, or beta? The latest beta allows you to do it within Emby server control panel. If stable then you need to update the system.ini on your NAS BETA. Where can I see it? Link to comment Share on other sites More sharing options...
FrostByte 5049 Posted October 6, 2021 Share Posted October 6, 2021 9 minutes ago, DJX said: BETA. Where can I see it? Ok, if you have the latest beta then go to the settings page and look for Database on the left size. Link to comment Share on other sites More sharing options...
FrostByte 5049 Posted October 6, 2021 Share Posted October 6, 2021 Link to comment Share on other sites More sharing options...
FrostByte 5049 Posted October 6, 2021 Share Posted October 6, 2021 (edited) if you don't have the latest beta you can still update the system.xml. That's all the web client does. Edited October 7, 2021 by FrostByte changed ini to xml Link to comment Share on other sites More sharing options...
DJX 18 Posted October 6, 2021 Author Share Posted October 6, 2021 Thanks. Will up from the standard 96MB and I notice that checkbox for vacuum when restarting 1 Link to comment Share on other sites More sharing options...
Carlo 4330 Posted October 7, 2021 Share Posted October 7, 2021 Why don't you have a remote person play something back off your system. Then upload the server log and the ffmpeg file that playback created. Both should be at the top of the Logs menu. We can then look and see why the media is transcoding. Link to comment Share on other sites More sharing options...
DJX 18 Posted October 7, 2021 Author Share Posted October 7, 2021 7 hours ago, cayars said: Why don't you have a remote person play something back off your system. Then upload the server log and the ffmpeg file that playback created. Both should be at the top of the Logs menu. We can then look and see why the media is transcoding. Ok will try that. The reasons it's transcoding is because the media rate exceeds error. I have 4K MP4 home videos that they're trying to play on their mobile devices. I think my upload speed at home may been an issue aswell which is around 8MB. I know HW transcoding can make that abit better but my first main priority is getting the images to load faster atleast. For me it's local direct play videos and images. I wouldn't expect images to lag on my Samsung tv app so trying to fix this and as a biproduct helping videos be a little quicker is the first aim! Also images loading on the remote users can be laggy aswell. I can hear my HDDs spin so maybe moving the cache and metadata to a USB3 SSD will help? I realised with synology we can't install emby app on an external drive right and I don't want to put a SSD into 1 of my 4 slots as I want them for WD Reds soon Thanks Link to comment Share on other sites More sharing options...
Carlo 4330 Posted October 7, 2021 Share Posted October 7, 2021 Hi, can you go to the detail screen of one of these media files and scroll down to the bottom of the page. Take a screen shot of the Media Info section and post that here. This will give us an idea what bitrates we're dealing with for the media files. With only 8 Mb upload bitrate in total you probably have about 7 Mb usable. The two main options to handle transcoding this type of situation is to: Transcode on the fly in real time. This can be done in hardware or software. GPU is far less system intensive. Pre-Transcode each file to have multiple versions available for direct playback. You could for example have the original 4K, a 6 or 7 Mb 1080 version for streaming to big streams and a 2 to 4 Mb version optimized for small screens maybe at 720. Emby can do both of the above. Link to comment Share on other sites More sharing options...
DJX 18 Posted October 7, 2021 Author Share Posted October 7, 2021 Have added the screenshots. In terms of transcoding on the fly. Would it be faster if I had a USB 3.0 SSD and change the transcoding path to that, rather than it being done on my HDDs? Link to comment Share on other sites More sharing options...
Luke 37058 Posted October 7, 2021 Share Posted October 7, 2021 Quote Would it be faster if I had a USB 3.0 SSD and change the transcoding path to that, rather than it being done on my HDDs? You can try, but there's no guarantee it will make any difference. Link to comment Share on other sites More sharing options...
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