I just did an system upgrade (from Ubuntu 18.04 to 20.04) and together with it went from handbrake 1.2.1 to version 1.3.1 - but unfortunately somewhere along the way something seems to have gotten wrong, because my encoding speed dropped by a lot. I did an encode before the upgrade at around 10 fps, now after the upgrade the same file with the same settings only gets to about 3 fps (but handbrake still maxes out my CPU). I saved and restored my config-files, presets and queue - so I'm definitely using the same settings as before.
So now I'm a bit lost where to look for the reason of this performance-drop because it could be a number of things? Is ist a problem with 1.3.1? Is it a problem with the new Ubuntu? Am I'm missing something else?
I've added two logs - one of the finished encoding before the upgrade i did a few days ago and one of the new encoding I tried doing today which should take seven hours to complete (opposed to two hours before):
Before: https://pastebin.com/u9PvvPpG
After: https://pastebin.com/NBYarBG4
HandBrake version : 1.3.1
Operating system and version: Ubuntu 20.04
Handbrake extremly slow after upgrade
Forum rules
An Activity Log is required for support requests. Please read How-to get an activity log? for details on how and why this should be provided.
An Activity Log is required for support requests. Please read How-to get an activity log? for details on how and why this should be provided.
-
- Posts: 10
- Joined: Fri Jul 22, 2016 7:27 pm
Re: Handbrake extremly slow after upgrade
(just to avoid confusion - I wrote "the same file" - actually I ment "a similar file" - the next episode of a series but digitalized in the same way. They are a few minutes different in length)
Re: Handbrake extremly slow after upgrade
1.2.1 encode wrote:Code: Select all
[14:18:16] + source: 3840 * 2160, crop (0/0/0/0): 3840 * 2160, scale: 1920 * 1080 [14:18:16] + display dimensions: 1920 x 1080
4x as many pixels to encode will certainly be slower! Set the max resolution in 1.3.1 and save it in your preset.1.3.1 encode wrote:Code: Select all
[00:15:47] + display dimensions: 3840 x 2160
Also you're specifying no-sao wrong, so it's not happening. Use the HB syntax on the x265cli syntax.
-
- Posts: 10
- Joined: Fri Jul 22, 2016 7:27 pm
Re: Handbrake extremly slow after upgrade
Okay, yeah that explains it - it seems I have to clear my queue and re-add everything and it seems to work... Thanks
About that: Is there any documentation what the correct HB-Syntax is? I was searching for this a long time, when setting up my preset and found nothing in the official documentation. Maybe I missed it, but then it's pretty well hidden and maybe should be added somewhere more prominent? But I'm happy to do it the right way. So the HB-Syntax would be just "no-sao"? Or "no-sao=1"?
Re: Handbrake extremly slow after upgrade
Either of those or sao=0
It's quite rare that users have any good reason to specify advanced options, and those with the level of understanding necessary should have no problem with the syntax.
It's quite rare that users have any good reason to specify advanced options, and those with the level of understanding necessary should have no problem with the syntax.