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Preview/Proxy image: extremely long load time? Dell XPS 9560

Paul Cochrane
Hi there,

I'm a seasoned CaptureOne Pro user but am new to Windows (have always used Mac, up until a few months ago)

My problem is: when editing on Windows 10, C1Pro loads up a lo-res proxy image immediately but it then takes 5+ seconds for the image to 'focus' (i.e load up a higher res image so that one can actually judge focus etc etc)

I have never had this problem on Mac.

So: editing the same images (From a Canon 5d Mk3) on a 2011 MacBook Pro vs a 2017 Dell XPS 9560 (4k touchscreen) is markedly different, in fact it's almost impossible to quickly whizz through images on the Dell; having to wait seconds for a decent proxy to render for every image is painful!

I'm thinking it's to do with the fact that the Dell has a 4k monitor, however, in Preferences I have changed the PREVIEW IMAGE SIZE to the smallest as well as the largest setting to see if this makes a difference: I have not noticed any difference at all.

Any help greatly appreciated, I know there must be a solution... mustn't there?!

Thanks,
P
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26件のコメント

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  • Benjamin Liddle
    The correct cache preview size for a 4k monitor is 3840. The difference in performance is due to the fact that the Dell must draw previews nearly twice in size.
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  • Paul Cochrane
    Hi Ben,
    sorry for my delayed reply - I thought I'd get notified via email of an answer to my question... my bad!

    Thanks so much for your reply! So is there a way to speed up the preview rendering? I find it hard to fathom that my old laptop would perform snappier than a brand new one... i7 Kabylake processor, 16GB RAM etc etc...

    Thanks again!

    P
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  • WPNL
    Did you try with the resolution of your display set to 1920 x 1080?
    That should be faster.
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  • Manuel Huettl
    To display the image on a 4K screen instead of Full-HD screen needs a lot of more resources.

    So if your Dell does not have a good dedicated graphic card, then you should try to set your screen to 1920x1080 (as recommended by WPNL aswell) and set the preview-size accordingly.
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  • Robert Whetton
    it all boils down to the 1050 GPU, it's not the fastest card on the block 😕 if you have to use a windows laptop, find one with a faster GPU
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  • WPNL
    4K on Mac is also a problem, it's a simple matter of math: 4 X more pixels takes 4 X more processing power to be able to compete at least.

    That's the pitfall of 4K (on a laptop or AIO) ... 😊
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  • Permanently deleted user
    I'm sorry but no one seems to be addressing the issue.

    Thankfully I've been working on small batches, but Jesus Christ I experience this on Windows as well.

    For the past year I have had to either take a walk, or actively talk myself to let it go so that I can get some lengthy amount of work done.

    Don't get me wrong; it's worlds faster than Lightroom.

    It does however get annoying after you scrolled through 20 images and the thing still isn't capable to 'predict' and cache 5 goddamned previews in all that reserved ram. (It does 'cache' 2. The current and the previously edited image. Only.)

    It basically reloads every preview (maybe re-renders) every damn time. Speed difference on a smaller screen is marginally faster.

    In saying that, I will take a long walk and come back from denial into acceptance, that this has to be a bug; and then write a report on google docs, because the support case page has the worst font contrast ever.

    Edit: Maybe this is a strategy to make us better photographers and shoot less irrelevant images in this 20fps digital age.

    😁
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  • WPNL
    How about some specs instead of profanity?
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  • Permanently deleted user
    [quote="WPNL" wrote:
    How about some specs instead of profanity?


    Well...

    Old AMD triple core 3.8GHz. 8GB of RAM. GTX 670 2GB. 2560x1440 main screen. 128GB Boot SSD.

    (Edit: I had an old 9800GT until a few months ago and there has been no noticeable difference by the upgrade)

    Referenced catalog running on a WD Black HDD.

    Windows 10 Pro, now updated to creators update.

    I can't remember if this happened to my 9.3 trial.

    I'm currently on 10.0.2 awaiting for the 10.1.x fixes.

    Edit2: I will add that in my case the issue seems to be exacerbated (in how bad the preview looks before 'focusing', not in time it takes to load) by running display calibration through a LUT engine (DisplayCal).

    Cheers
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  • Permanently deleted user
    [quote="Bobtographer" wrote:
    it all boils down to the 1050 GPU, it's not the fastest card on the block 😕 if you have to use a windows laptop, find one with a faster GPU


    Are you sure?

    I know it's probably rated for Direct X, but at 46 Gpixel/s I think the GPU shouldn't be a bottleneck for drawing a pre-rendered 10 Mpixel still image on screen.
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  • WPNL
    @gusferlizi

    Old AMD triple core 3.8GHz. 8GB of RAM. GTX 670 2GB. 2560x1440 main screen. 128GB Boot SSD.
    The GPU could use an upgrade if I compare it to my "old" R9 290x 😊
    (rest of my setup for comparison: 6700K, 64Gb RAM, RAID-0 2 x 250GB SSD)

    (Edit: I had an old 9800GT until a few months ago and there has been no noticeable difference by the upgrade)
    Make sure the proper drivers are used, check C1's config to be set to use the GPU automatically?

    Referenced catalog running on a WD Black HDD.
    Put the catalog on SSD, what are you thinking!!! 😉

    I can't remember if this happened to my 9.3 trial.
    I guess more things have changed since then...

    Edit2: I will add that in my case the issue seems to be exacerbated (in how bad the preview looks before 'focusing', not in time it takes to load) by running display calibration through a LUT engine (DisplayCal).
    I'm using DC also, no issues...

    Have a nice day 😊
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  • Robert Whetton
    [quote="gusferlizi" wrote:
    [quote="Bobtographer" wrote:
    it all boils down to the 1050 GPU, it's not the fastest card on the block 😕 if you have to use a windows laptop, find one with a faster GPU


    Are you sure?

    I know it's probably rated for Direct X, but at 46 Gpixel/s I think the GPU shouldn't be a bottleneck for drawing a pre-rendered 10 Mpixel still image on screen.

    Yeah, i've just seen some videos of the laptop running apps, it should be able to cope with the drawing on 4K, gotta be something else holding things up..

    Have you used task manager to monitor CPU usage?
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  • Robert Whetton
    [quote="gusferlizi" wrote:

    Old AMD triple core 3.8GHz.

    OUCH!
    You sure your 670 isn't bottlenecked by this CPU!?
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  • Permanently deleted user
    [quote="Bobtographer" wrote:
    [quote="gusferlizi" wrote:

    Old AMD triple core 3.8GHz.

    OUCH!
    You sure your 670 isn't bottlenecked by this CPU!?


    It's overvolted and peaks at a stable 100 GFLOPs when I get to 4GHz

    ...but the architecture is iffy, so in a few aspects, yes.
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  • Permanently deleted user
    [quote="WPNL" wrote:

    The GPU could use an upgrade if I compare it to my "old" R9 290x 😊
    (rest of my setup for comparison: 6700K, 64Gb RAM, RAID-0 2 x 250GB SSD)

    Make sure the proper drivers are used, check C1's config to be set to use the GPU automatically?

    Put the catalog on SSD, what are you thinking!!! 😉

    I'm using DC also, no issues...

    Have a nice day 😊


    The GPU is more than plenty to draw a screen. Latest Nvidia drivers. I can't see a benefit from GPU acceleration off or auto. (On 10.1.2 GPU acceleration is mindblowing but it still presents the issue being discussed.)

    I just waited for 30k 12KB files to copy over to the SSD to find that it's merely 'faster', where it still reloads/rerenders the preview instead of prefetching at least a handful.

    Good Day to you too.
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  • Permanently deleted user
    [quote="Bobtographer" wrote:
    Have you used task manager to monitor CPU usage?


    I have paid attention now and it gets quite spiky in casual browsing. If I keep going through a bunch of pictures, CPU stays at 100 and preview load time increases up to 5 seconds.

    Video demo: https://www.youtube.com/watch?v=cjbiq5Zu9Cw

    I don't understand why it has to take that long to load a 3MB file from an SSD, but maybe I really am hitting my head against a CPU bottleneck.

    Cheers
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  • WPNL
    I watched the video and it doesn't look like normal behavior (the delay you're experiencing), something's choking for sure.
    When I'm browsing photos only the first time there's some delay, but not much, less than a second.
    The second time I select a photo, the image is there immediately, my RAW are 42MP shown on a 4K display.
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  • Permanently deleted user
    [quote="WPNL" wrote:
    I watched the video and it doesn't look like normal behavior (the delay you're experiencing), something's choking for sure.
    When I'm browsing photos only the first time there's some delay, but not much, less than a second.
    The second time I select a photo, the image is there immediately, my RAW are 42MP shown on a 4K display.


    Thanks for checking it out.

    I'll do some more testing, maybe purge CO and fresh install.

    Cheers
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  • Permanently deleted user
    [quote="WPNL" wrote:
    I watched the video and it doesn't look like normal behavior (the delay you're experiencing), something's choking for sure.
    When I'm browsing photos only the first time there's some delay, but not much, less than a second.
    The second time I select a photo, the image is there immediately, my RAW are 42MP shown on a 4K display.


    Thanks for checking it out.

    I'll do some more testing, maybe purge CO and fresh install.

    Cheers
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  • Robert Whetton
    Ok, so I took a shoot with 150 images and recreated the previews at 4K (my 2K previews were almost instant when swapping between them)
    When swapping between the 4K previews I had task manager open and was watching the CPU usage, the system was hitting 100% when drawing them, they took a fraction of a second more to draw than the 2K, but can conculde that your CPU is probably the bottleneck here.. Maybe it's the HT? The i5 doesn't have it. Can you disable it in bios?
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  • Permanently deleted user
    [quote="Bobtographer" wrote:
    Ok, so I took a shoot with 150 images and recreated the previews at 4K (my 2K previews were almost instant when swapping between them)
    When swapping between the 4K previews I had task manager open and was watching the CPU usage, the system was hitting 100% when drawing them, they took a fraction of a second more to draw than the 2K, but can conculde that your CPU is probably the bottleneck here.. Maybe it's the HT? The i5 doesn't have it. Can you disable it in bios?


    Maybe for the OP, but in my case old AMD doesn't do HT/SMT, so no.

    I have tried to regenerate previews to 1440, display in a 1440 screen, and performance was about as good as I would expect.

    Displaying the 1440 previews on the 2560 screen, however, felt nearly as bad as the 2560 previews.

    1440X900 screen https://youtu.be/g0P87pdc_4E

    2560x1440 screen https://youtu.be/ytqU-abY-DI

    Things do speed up a little if I simply make the window smaller, making me no longer think it's a database/filesystem issue, pointing back at the CPU and perhaps preview handling code efficiency.
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  • Permanently deleted user
    Maybe I am being an idiot...

    https://youtu.be/z1aByzdpu4k

    With OpenCL enabled in 10.1.2 it really seems to be the CPU holding it back.

    I wonder how this manifests in the OP's 3x faster platform however.
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  • WPNL
    BTW disabling xmp sync also had positive effect.
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  • Permanently deleted user
    [quote="WPNL" wrote:
    BTW disabling xmp sync also had positive effect.

    I had that off several months ago
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  • Robert Whetton
    [quote="gusferlizi" wrote:

    Maybe for the OP, but in my case old AMD doesn't do HT/SMT, so no.

    Well, yeah it was for the OP.. Your case is a ten year old CPU that's in desperate need of retirement 😉
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  • Permanently deleted user
    I still have to sleep on it, but it does feel like I mitigated most of the lag issues by holding the CPU at the highest power state. Even after going back to "Balanced" it feels like windows is handling CO calls much snappier.
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