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C1 Slow, CPU spikes to 100% Suggestions?

Permanently deleted user
OK guys, so C1 has pretty much always been a little slow on my machine but I found it to be usable once I installed an SSD. I do have Open CL on and the graphics card is being used which I checked with the tech power up software and the GPU generally goes from 10-60% while using C1. The main thing I notice is really slow is when zooming in to 100%, it take a second or so sometimes longer and I see CPU spike to 100% just when zooming in like that. I've tried a bunch of different preview sizes/regenerate previews and it doesn't seem to make any difference even if I drop super low. It's currently set to 3840. I have a Dell XPS with an gen 4 i7 3.6 ghz, SSD, 32gb RAM, NVidea GTX 745 GPU, Dell 4K display. It's a few years old now but runs really fast with every program with the exception of C1 and just wondering if anyone has any ideas? Maybe that's how it is for everyone? It's not slow enough that I would consider going back to LR because C1 is so much better! It could just be that this PC doesn't have enough horsepower to handle C1 with a 4K display, but I don't want to buy a new desktop and have it do the same thing.

Thanks!
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  • Permanently deleted user
    Are the RAW files on the SSD? If not I'd say that's normal.

    Capture One parses the original file when zooming past the preview resolution.

    I currently have my 50MB Fuji RAW files on a 5400rpm drive and it takes a good 5 seconds to load a 100% preview.

    On the other hand, I do believe CPU usage to be unnecessarily high when loading pre-rendered previews from my SSD or fast HDD.
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  • Permanently deleted user
    [quote="gusferlizi" wrote:
    Are the RAW files on the SSD? If not I'd say that's normal.

    Capture One parses the original file when zooming past the preview resolution.

    I currently have my 50MB Fuji RAW files on a 5400rpm drive and it takes a good 5 seconds to load a 100% preview.

    On the other hand, I do believe CPU usage to be unnecessarily high when loading pre-rendered previews from my SSD or fast HDD.


    Yes the RAW's are on an SSD and they're like 40mb files from the D810. I'm beginning to think that this computer and GPU just struggle because I have a 4K display
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  • Permanently deleted user
    [quote="Canon_Shoe" wrote:

    Yes the RAW's are on an SSD and they're like 40mb files from the D810. I'm beginning to think that this computer and GPU just struggle because I have a 4K display


    OK, I have had some issues for a while too and might be arriving at something. I just realised CO seems to use only the CPU to render the file at 100%. Minor spike on GPU usage but seems unrelated. Still trying to understand.

    Try to plug your laptop in and force the High Performance power plan (Control Panel > Power Options, or via the battery icon). If it's already on High Performance, switch to Balanced and then back to High Performance.

    Try and let me know if you notice a difference. Maybe close CO and open again.

    Cheers

    -Gus
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  • Permanently deleted user
    [quote="gusferlizi" wrote:
    [quote="Canon_Shoe" wrote:

    Yes the RAW's are on an SSD and they're like 40mb files from the D810. I'm beginning to think that this computer and GPU just struggle because I have a 4K display


    OK, I have had some issues for a while too and might be arriving at something. I just realised CO seems to use only the CPU to render the file at 100%. Minor spike on GPU usage but seems unrelated. Still trying to understand.

    Try to plug your laptop in and force the High Performance power plan (Control Panel > Power Options, or via the battery icon). If it's already on High Performance, switch to Balanced and then back to High Performance.

    Try and let me know if you notice a difference. Maybe close CO and open again.

    Cheers

    -Gus


    Sweet, I'll try that tonight. It's a desktop so I hope it has that option?
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  • Wesley
    4k is a lot to ask for many GPUs, let alone the one you have 😜

    And I don't see any problem with a software utilizing available CPU. Why put resources to waste? 😄
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  • Permanently deleted user
    [quote="Wesley" wrote:
    4k is a lot to ask for many GPUs, let alone the one you have 😜

    And I don't see any problem with a software utilizing available CPU. Why put resources to waste? 😄


    Do you think adding a better graphics card would help or is my CPU decent enough to handle a better GPU? It's to the point I may just consider a new desktop as well
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  • Permanently deleted user
    Right, I was under the impression that it was a laptop (only familiar with the XPS laptop series).

    By all means get a better graphics card. Your CPU is 3x faster than mine and 5 years more modern.

    No need to break the bank. Any x70 or x80 and up from a 670 should be good (670,680,770,780,etc). Most people here will recommend top of the line AMD Radeons, but you can do your research. Just try to go with 4GB+ since Capture One 10.1 does use GPU memory quite heavily.

    Back to the CPU usage issue, I have a theory that it has to do with how often CO lets go of the CPU, and how responsive the windows kernel frequency scaling is at pulling the CPU out of idle.

    I see that between version 10.0.2 and 10.1.2 there is significant optimisation, so perhaps there's more to come.

    If you're on windows 10 you can right click on the start menu and go to "Power Options", then "Additional power settings" on the right of the window.

    Edit: Try to turn OpenCL off in CO preferences if you feel no difference after the above. Maybe your GPU is holding things back on top of that.
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  • Permanently deleted user
    [quote="gusferlizi" wrote:
    Right, I was under the impression that it was a laptop (only familiar with the XPS laptop series).

    By all means get a better graphics card. Your CPU is 3x faster than mine and 5 years more modern.

    No need to break the bank. Any x70 or x80 and up from a 670 should be good (670,680,770,780,etc). Most people here will recommend top of the line AMD Radeons, but you can do your research. Just try to go with 4GB+ since Capture One 10.1 does use GPU memory quite heavily.

    Back to the CPU usage issue, I have a theory that it has to do with how often CO lets go of the CPU, and how responsive the windows kernel frequency scaling is at pulling the CPU out of idle.

    I see that between version 10.0.2 and 10.1.2 there is significant optimisation, so perhaps there's more to come.

    If you're on windows 10 you can right click on the start menu and go to "Power Options", then "Additional power settings" on the right of the window.

    Edit: Try to turn OpenCL off in CO preferences if you feel no difference after the above. Maybe your GPU is holding things back on top of that.


    It does seem just a touch faster after I turned the power options to high performance but still lags. What do you think about this graphics card?
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  • Permanently deleted user
    [quote="Canon_Shoe" wrote:

    It does seem just a touch faster after I turned the power options to high performance but still lags. What do you think about this graphics card?


    Hmm, not quite sure then. What actions lag in specific? The 100% zoom only?

    There were mentions on other threads of Intel's SMT/HT (Hyper Threading) interfering but I can't test that theory.

    The 6GB version of the GTX 1060 seems alright. Make sure your computer has a 6-pin PCI-Express power connector and 400W power supply.
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  • Permanently deleted user
    [quote="gusferlizi" wrote:
    [quote="Canon_Shoe" wrote:

    It does seem just a touch faster after I turned the power options to high performance but still lags. What do you think about this graphics card?


    Hmm, not quite sure then. What actions lag in specific? The 100% zoom only?

    There were mentions on other threads of Intel's SMT/HT (Hyper Threading) interfering but I can't test that theory.

    The 6GB version of the GTX 1060 seems alright. Make sure your computer has a 6-pin PCI-Express power connector and 400W power supply.


    Mainly just the zoom function lags but even after all the previews are built, if you click on a thumbnail it sometimes takes a couple of seconds for it to pull it up as well. The image appears blurry for a couple of seconds. Initially, my GPU was not working at all with C1 but I updated the drivers and that started working. I then added an SSD and it's quite a bit faster just these small issues that I'm trying to figure out. I guess it's just my PC struggling with my 4K display. Apparently my PC has a 450W power supply and the current GPU says it uses PCI Express 3.0? Think that would work?
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  • Permanently deleted user
    [quote="Canon_Shoe" wrote:

    Mainly just the zoom function lags but even after all the previews are built, if you click on a thumbnail it sometimes takes a couple of seconds for it to pull it up as well. The image appears blurry for a couple of seconds. Initially, my GPU was not working at all with C1 but I updated the drivers and that started working. I then added an SSD and it's quite a bit faster just these small issues that I'm trying to figure out. I guess it's just my PC struggling with my 4K display


    Lags or takes a few seconds?

    Mine without OpenCL takes 2-4 seconds to read the 50MB raw file from a hard drive and render at 100%. With Open CL it's 1-2 seconds.

    Make the window smaller and see if that renders faster... and how much faster.
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  • Permanently deleted user
    [quote="gusferlizi" wrote:
    [quote="Canon_Shoe" wrote:

    Mainly just the zoom function lags but even after all the previews are built, if you click on a thumbnail it sometimes takes a couple of seconds for it to pull it up as well. The image appears blurry for a couple of seconds. Initially, my GPU was not working at all with C1 but I updated the drivers and that started working. I then added an SSD and it's quite a bit faster just these small issues that I'm trying to figure out. I guess it's just my PC struggling with my 4K display


    Lags or takes a few seconds?

    Mine without OpenCL takes 2-4 seconds to read the 50MB raw file from a hard drive and render at 100%. With Open CL it's 1-2 seconds.

    Make the window smaller and see if that renders faster... and how much faster.


    I'd say a few seconds. It does render faster when I run it with a smaller window. Maybe twice as fast. It says my PC comes with a 450W power supply and then current GPU uses a PCI Express 3.0. Is that compatible you think?
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  • Permanently deleted user
    [quote="Canon_Shoe" wrote:

    I'd say a few seconds. It does render faster when I run it with a smaller window. Maybe twice as fast. It says my PC comes with a 450W power supply and then current GPU uses a PCI Express 3.0. Is that compatible you think?


    Lag would be taking time to respond to the zoom command, not the render time itself.

    "...even after all the previews are built, if you click on a thumbnail it sometimes takes a couple of seconds for it to pull it up as well. The image appears blurry for a couple of seconds."

    Yes, that bothers the hell out of me as well, and is something that the "High Performance" power mode has helped reduce (for me). Notice that the program's behaviour, however, seems to pre-render the next image when you click on a given image. So if you linearly move from one image to the other, pausing for a couple seconds, the next one is always already loaded.

    (I put a support case through as to my theory of the underlying issue and hope to get some insight.)

    Thus far I would say a second or two to render the preview is normal; specially at 4K without the ultra most fastest computer.

    PCI Express 3 should be fine, but it is the power connector/cable inside the machine that you have to check for.
    https://www.techpowerup.com/forums/atta ... jpg.57637/
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  • Permanently deleted user
    [quote="gusferlizi" wrote:
    [quote="Canon_Shoe" wrote:

    I'd say a few seconds. It does render faster when I run it with a smaller window. Maybe twice as fast. It says my PC comes with a 450W power supply and then current GPU uses a PCI Express 3.0. Is that compatible you think?


    Lag would be taking time to respond to the zoom command, not the render time itself.

    "...even after all the previews are built, if you click on a thumbnail it sometimes takes a couple of seconds for it to pull it up as well. The image appears blurry for a couple of seconds."

    Yes, that bothers the hell out of me as well, and is something that the "High Performance" power mode has helped reduce (for me). Notice that the program's behaviour, however, seems to pre-render the next image when you click on a given image. So if you linearly move from one image to the other, pausing for a couple seconds, the next one is always already loaded.

    (I put a support case through as to my theory of the underlying issue and hope to get some insight.)

    Thus far I would say a second or two to render the preview is normal; specially at 4K without the ultra most fastest computer.

    PCI Express 3 should be fine, but it is the power connector/cable inside the machine that you have to check for.
    https://www.techpowerup.com/forums/atta ... jpg.57637/


    OK, I guess what my issue is then is the rendering and how long it takes. Thanks so much for all of your help 😊
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  • Permanently deleted user
    You're welcome. 😊

    Past the windows lag I experienced with the performance mode, I guess my TL;DR is that: Yes, I am confident this slowness is influenced by a higher resolution screen (like mentioned by staff and other members in other threads). However, IMO this is not free from the need of software improvement, since the platforms at play are more than capable. Like I said in another thread, 'why does it take so long to process a 3-6MB preview file from my SSD/HDD?' I hope to get some answers from the support team and will let you know.

    Cheers,

    -Gus
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  • Permanently deleted user
    [quote="gusferlizi" wrote:
    You're welcome. 😊

    Past the windows lag I experienced with the performance mode, I guess my TL;DR is that: Yes, I am confident this slowness is influenced by a higher resolution screen (like mentioned by staff and other members in other threads). However, IMO this is not free from the need of software improvement, since the platforms at play are more than capable. Like I said in another thread, 'why does it take so long to process a 3-6MB preview file from my SSD/HDD?' I hope to get some answers from the support team and will let you know.

    Cheers,

    -Gus


    Sounds good Gus 😊 It's funny.....so many have switched to C1 from LR for the performance alone and for me, it's always been way slower than LR was on my PC. The image quality is so much better though that's it's worth the wait
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  • Permanently deleted user
    [quote="Canon_Shoe" wrote:

    Sounds good Gus 😊 It's funny.....so many have switched to C1 from LR for the performance alone and for me, it's always been way slower than LR was on my PC. The image quality is so much better though that's it's worth the wait


    Well then... I'm not convinced, but maybe, after all, it is down to the lack of graphics horsepower. My LR experience was unusable after v6, whereas C1 has been fine overall. 😕

    It's worth upgrading the GPU either way, so let us know how it goes.

    Cheers
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  • Leif Oberg
    I think the biggest influence on performance in Capture One is your CPU.
    I notice a big performance improvement on our video editing machine which has 28 cores. But yes, if you have a 4k screen you can expect it will take a lot longer to render the image on screen.
    /Andreas
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