Premiere Pro is exporting EXTREMELY slow on decent hardware, and underutilizing my CPU and GPU

[Exciting_interest5251]

Hello,

I don't really know where else to go because I've just spent the last three hours looking for a fix and nothing I found helped.  I recently built a new PC (12600k, RTX 3060, 32GB of DDR5 RAM.) I have Premiere Pro installed on a 970Evo 1TB NVME Samsung drive, my project files on a Samsung 960 Evo SSD and the media cache on a 500GB Samsung 970 Evo Plus.

I have CUDA enabled, hardware acceleration on (also tried software accelleration) and so on (all of the usual things people suggest, including clearing the cache and restarting Premiere after making these changes to the settings.

However, I'm getting EXTREMELY SLOW export times, regardless of the settings I use and change on 1080P projects.

I thought I found out the problem, which is Windows scheduling Premiere Pro to run on the slower E cores of my hybrid CPU than the P cores, so I installed two programs, "ParkControl" and "Lasso" which allowed me to disable parking on all cores and assign Premiere Pro to only use the six, faster P cores, thus preventing Windows from switching.

This worked! ...for a few days. A 90 second video project that used to export in 3 and a half minutes dropped down to around 20 seconds. I was so happy, as it fixed my issue, and the task manager showed the GPU running at around 80% during export. But, now it's right back where it was a day later.

During export, the GPU doesn't go past 15%, the CPU utilization is just as low, and the video decoder in the 3060 isn't being used at all on export, nor is the iGPU (12600K).

I just spent a few hours trying EVERYTHING I could find. I updated the Intel driver for the iGPU, updated Nvidea driver for the 3060 (tried studio, then gaming then back to studio), played around with enabling and disabling various settings (hardware/software decoding, so on and so forth).

NOTHING works. My export times are back to taking 4-5x longer than the length of the video I'm exporting. I honestly have no idea what the problem is here. The P core scheduling seemed to have fixed the issue for a day or two, and somehow even got Premiere to use the 3060 for exporting running it at about 85% usage, but now it's back down to around 15% and everything is slow again.

I'm seriously considering switching to Resolve if this is an issue with Premiere Pro. I cannot describe how frustrating it is to have spent $1,500 on a new PC for Premiere Pro use, only to have it performing WORSE than the computer it replaced!

[R Neil Haugen]

Your CPU is only a six core rig, in "real world" terms. Which is tiny for most video post usage. At least 10 full cores would be a vast improvement. Cores matter.

For comparison, my desktop is a 24 core Ryzen, and I'm running 128GB of RAM with it. Twin Nvme internal drives, one for OS/Programs, the other for all cache files. Eight internal SSD drives, and a couple large spinners for general storage.

[IanB_360]

Hi @Exciting_interest5251 

Welcome to the Premiere Pro forums! We are glad to see you here. We need a few more details to try to help with the issue. Please see, How do I write a bug report

Thank you for the already great details you have provided on your bug report. By filing a bug report in the specific format that is provided by the link it helps us give more clear concise information that the engineers need to help solve the problem. I hope we can help you soon. Sorry for the frustration!

Thanks,

Ian

[Exciting_interest5251]

Hi @IanB_360 ,

I've updated my first post with the bug which I believe I've narrowed it down to after further testing and research. It does in fact appear to be a bug with Adobe Premiere Pro. The 12600K has 10 cores, 6P/12T cores and 4E/4T cores, with a turbo boost of around 4.6ghZ. It's no slouch! However, it was exporting MUCH SLOWER (several minutes slower) than my 4 core/4 thread 7600K which turbo boosts to 4.1gHz, that I bought nearly 7 years ago, which makes it apparent to me the issue was software related and not hardware related. My 12600K performs wonderfully in Cinebench, Silver Bench and other benchmarks, running all 10 cores at 100%. 

In any case, after further research, I was able to find a Reddit post who had a similar problem, and their solution fixed my issue. This does appear to be a bug with Premiere Pro, as the fix was interesting.

I had been exporting my videos using the render at maximum quality setting. As such, it was taking over 4 or 5 minutes for me to render a 90 second video. The fix was to ALSO select "render at maximum bit depth", so the two options were both ticked. This took the 4 or 5 minute render time on a 90 second 1080p video down to around 25 seconds. MUCH more acceptable for the CPU that I'm using.

[MyerPj]

Sorry, I didn't get that last paragraph. So, with 1 checked, it was 4-5 min. Then when you have both checked it is 25 secs.

What format are you exporting to? I'm struggling right now with exporting a smart rendered sequence. Previously it was going very fast, now a 10 min smart rendered sequence is taking 6-7 min. I remember it being faster, maybe I've forgotten?

I have both those checked in the sequence and I'm checking both those in the export. (ProRes LT). Right now I'm playing with those settings.