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Performance ON1 2021 and my iMac desktop 2017

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33 comments

  • Brian Lawson Community moderator

    You can upgrade the memory in your iMac to 32GB, you just have to replace the DIMMs currently installed with a larger size. 8 GB is a bare minimum to run the program.

    How big is the boot drive and how much free space does it have? Whenever a drive gets below about 15% free space the system's performance will start to suffer.

    Something I highly recommend for anyone running Photo RAW is to add an SSD that is dedicated to just PR's use. Move the program's Scratch space and PerfectBrowseCache to it and you'll free up a bunch of space on your boot drive (the PBC can get quite large if you've got a lot of photos) as well as getting a performance boost by giving the scratch space its own I/O channel that no other program uses. Kind of like having your own lane to drive across the one lane, one way bridge everyone else has to line up and wait to cross.

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  • Brian Lawson Community moderator

    Do you run any anti-virus or malware software that actively scans changes to your drives? If so, you'll want to turn that off for ON1's Scratch space and PerfectBrowseCache. Those are constantly being written to as you use the program so you don't want scanning software trying to check every change Photo RAW writes to disk.

    You can find where they are stored by looking in Preferences > System. The buttons to move them to another location are there too.

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  • DivLem

    Hello Brain
    I thank you for helping me.
    No, I do not have a virus scan
    as well as no malware software scanner.

    I have 390GB free space
    I use this iMac only for PR ON1 2021, Spider X for calibration and the basic programs of Apple


    You are talking about an SSD drive (external) only for Photo Raw
    How big would you take it and will this help me a bit forward without other upgrades (Ram)
    Can I also use that SSD drive to store my original photos and work this way with PR?

     

    I am not a soft and hard true expert, so it can happen that I ask some strange questions My English is also basic and I use google translate for such matters

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  • DivLem

    Richard

    I see you've hidden the serial number is a reason for that

    Brain

    why we can't edit uploaded images or text once posted
    can we delete or modify a photo or text of ourselves?

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  • DivLem

    Excuse me Brain

    I have found it to edit my posts

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  • Brian Lawson Community moderator

    Richard hid the serial number for privacy reasons.

    I got a 120GB SSD and an enclosure and cable for under $100. I would not put my photos on it. I have mine on a 2nd SSD. The idea is that you want the I/O channel the program uses the most while you are editing to be reserved for only that purpose. If the photos are there too now that I/O channel is serving a dual purpose which could lead to traffic backups and performance slow downs.

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  • DivLem

    Thanks Brain

    I try your advice and go work with two ssd and hope the good things

    I am happy with ON1 2021, it's make for people like me (creative explorer of Photo_Grafie)

    thanks

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  • DivLem

    Richard

    Thanks for info

    I give the ssd card and Brain info a try

    I have read this and that's the reason I try first the ssd , expect him today.

     

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  • Brian Lawson Community moderator

    DivLem, are you waiting for something from me?

    The reason Apple says the memory is not removable by the user is because it isn't the easiest thing to open an iMac. If you're technically inclined it isn't too bad if you take your time. Otherwise, any good Mac repair shop should be able to do it for you.

    The SSD is a cheaper option.

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  • DivLem

    Brian

    I have recieved the ssd HD this morning and do the move of cache location now at this moment
    I do the transfer with "move" from ON1 
    The "perfectBrowse" map has 210GB
    But I don't know what happend, the disk Lacie 500GB with 540MB/s upload download 
    It take now different ours and stil Bussy , check the speed = 16,7 MB/s with USB-C cable
    I wait now to the finish of the transfer, go try a new transfer of photo's from finder to disk to see I have the same speed problem 

     

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  • Brian Lawson Community moderator

    I'm guessing the 500GB LaCie is the new SSD? That 540MB/s transfer rate is a maximum that can be achieved. How fast it actually gets used is dependent upon how the program uses it.

    That transfer rate isn't what you want to watch. I don't know that there is an actual way to measure the performance difference except personal experience. You should see a nice boost in performance while editing from Photo RAW once everything has finished moving to the new drive.

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  • DivLem

    Brian
    Yes that Lacie 500GB is the new SSD drive
    thanks for info, I had nerves seeing the speed, but now I onderstand a little bit

    Question: After the transfer, I leave the folder "perfect browse", the old one, in the finder or I delete it
    What is your opinion

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  • Brian Lawson Community moderator

    I deleted it from my system. It isn't being used and it just takes up space so why not?

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  • DivLem

    Brian

    I see now you speek about "Move the program's Scratch space and PerfectBrowseCache"

    When you use the "move" in preferences will de Scratch space also move to the ssd drive?

    Where can I find the Scratch space first place in finder?

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  • Brian Lawson Community moderator

    There are separate Move buttons for both the Scratch space location and the PerfectBrowseCache location. You have to move each of them even though they are both going to the same location in this case.

    The default location for them is in ~/Library/Application Support/ON1/

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  • DivLem

    I found the move button for Scratch space ;)

    I don't find yet in "The default location for them is in ~/Library/Application Support/ON1/"

    Perfect browse I see there but Scratch space ?

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  • Brian Lawson Community moderator

    What I did was look at what was moved to my SSD then I deleted those folders from the ON1 Application Support folder.

    Do both moves then restart the program. Now you can look at what is on the new scratch SSD to see what got moved over and that will tell you what to delete from the default location.

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  • DivLem

    I will do

    thanks for the assistance

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  • Brian Lawson Community moderator

    The scratch location holds mostly temporary files that are automatically deleted when you finish editing a photo and when you quit the program so don't expect to find anything explicitly for it that you need to deal with.

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  • DivLem

    What determines the size of the PerfectBrowseCache folder
    I am currently on 300GB

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  • Brian Lawson Community moderator

    The size of the previews you chose to create times the number of photos you have.

    Catalogs and Caches - ON1 Photo RAW 2020 & ON1 PHOTO RAW 2021

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  • DivLem

    I read and learn , thanks

    A summary
    Good afternoon from Belgium
    1) test speed SSD disk
    folder photos from 1 GB from HD> SSD
    speed = 30sec
    verry speedfull
    2) Delete PB (perfectBrowse)
    ON1 created a new oneon HD
    set cache on 1000
    3) Move to SSD (1,5gb)
    4) delete pBrowse on HD
    5) restard ON1
    > control = ok
    set cache on 5000
    6) ON1 rebild Cache (can take time)
    7) tested ON1
    -browse ok fast
    -develop 1photo
    it takes a while before the D opens
    starting develop it works but as the operations progress ON1 gets stuck (it seems that local adjustment is especially demanding a lot of power)
    8) Conclusion: the external SSD is definitely a plus
    I hope that after writing Cache> pBrowse the Develop module will run better
    This iMac actually has too little power to work smoothly, but if you work carefully and slowly, it will still work. It is mainly the Develop module that needs the most power, so I am experiencing the problems.
    Browse, export, etc. work smoothly
    I think to upgrade or buy a new one when the opportunity present itself

    thanks for your help it was a PLUS worth

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  • Brian Lawson Community moderator

    One thing the documentation does not make clear is what the Cache Size slider controls. It does NOT affect the size of the PerfectBrowseCache as one might expect. It controls a cache in RAM memory that holds what gets read from the PBC. With only 8GB on your system setting it lower as you've done will probably help while editing but browsing might get a little slower when working in a folder with a large number of files.

    The PBC will grow to whatever size it needs to be to hold all the image previews.

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  • Brian Lawson Community moderator

    Richard, that sets how much RAM you want to program to set aside to cache what gets read from the PBC. It affects how fast the browser can throw lots of thumbnails up on the screen. If it has to read them from disk, even an SSD, it will be slower than if it can pull them from memory. However, that leaves less RAM for editing so there is a balance. It is primarily for users with smaller amounts of RAM.

    Thanks for your feedback.

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  • DivLem

    Richard I see you have intern and extern SSD and more RAM, good for you and something to think about for me

    Brian I am happy with this info about Cash influence and RAM, thanks a lot
    I must verify the preview size and set it smaller if necessary 

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  • DivLem

    Preview and size ?

    Page 38 I found it , no problem thanks

    I change it from Standard to Medium see  Richard

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  • DivLem

    Brian

    It is better for browsing and simple developings

    but have you any suggestion for more intensive develop works

    I know upgrade my iMac but that's money talk :D

    When working with local adjustment I reach the limits of my iMac, it takes sometimes minutes before I can do something 
    if you have a suggestion to work with that a little more smoothly, now everything crashes after working in LA for a while

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  • Brian Lawson Community moderator

    Do you leave the left side panel open while editing so you see the Presets & Extras? That should be left closed while editing until you need it then close it again once you've made your choice. All the previews in that panel need to be re-rendered with each editing change, just the same as the main image view.That takes processor power and time so it's better to leave its closed.

    Have you adjusted any of the Preferences > System > Performance settings? The Video Card Strength slider "balances updating the preview of the image and the movement of brushes and gradient tool overlays. If your brush is sticking try turning it down." (User Guide, pg 229) Fast Panning renders a blurry image while panning and Fast Preview does the same thing while brushing. It reduces the GPU load to speed up the program at the expense of a sharper view.

    You might want to quit any programs you might otherwise leave running in the background just to free up some more memory.

    You said you have a 250GB internal drive but you never said how full it is. On my laptop I had to start moving programs and more of my Documents to the external drive I store my photos on as I was continually running out of space. Anytime a drive gets to 15% or less free space it's time to look at either freeing up some space or getting a larger drive. More money again, right? On the boot drive this is critical as it affects how quickly the OS can swap things in and out of memory to the hard drive.

    What type of drive is the internal boot drive? If it is a spinning HD (including Fusion drives) you might benefit from defragmenting it, especially if it is getting full. This will gather all the free space into a single consecutive chunk so the drive isn't searching all around trying to find places it can write new information like swap file caches. This will require some 3rd party disk utility tools like TechTool Pro, Drive Genius, or DiskWarrior.

    The rest of the options have costs associated with them. Birthdays & Father's Day are good times for "unnecessary" expenditures like this. 😀

    If you are technically inclined you can add more RAM yourself. iFixIt.com can tell you how and sell you the RAM and any tools you may need. Otherwise your local Mac shop can install it for you.

    Another option is an external GPU.

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  • DivLem


    thank you brian
    My HD is 1TB and I still have 600GB free
    I make it a habit to close the left panel
    I'm just dialing ON1, I'm paying attention
    I take your tips into account and adjust where necessary
    It is especially when using Local Adjustment that it crashes and I get the message "ON1 not responding" this happens regularly and twice a complete crash of the iMac as a result.
    I'm looking at upgraded RAM versus the new type of iMac that's yet to come out, maybe I'll make the big investment who knows
    I regularly have the disk checked by the first aid disk.
    An external GPU doesn't mean anything to me
    thank you for helping me forward

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  • Brian Lawson Community moderator

    You have plenty of disk space left then.

    When the program is crashing regularly it is a good idea to do the Delete Settings thing again. Even if you've done it recently. Crashes can cause the settings files to become corrupt which can then cause another crash. I just went through this the other day and ended up using the Reset ON1 Photo RAW 2021 option. That stopped the crashing for me.

    16GB should be enough RAM. That's all I had in my MacBook Pro and it's all I've got now in the Mini. It is probably the cheapest option though.

    An external GPU is a video card in a USB enclosure you add to your system just like any other external device. You can get a more powerful GPU with more of its own VRAM giving a big boost to Photo RAW's performance. Once it is plugged in the program will automatically recognize it and make use of it (on a Mac, Window system would have to be configured for it like you would an internal video card.)

    Disk First Aid does not check for fragmentation. That is where different pieces of the files are stored in different places on the drive. On an SSD this doesn't matter because they are designed to be accessed randomly. On a hard disk it means having to move the drive heads back and forth to the different places on the drive where the file fragments are stored which means a longer time to read the file. Defraging the drive will gather all the file pieces tougher and rewrite everything so the files are all in one contiguous space and all the available space is gathered together as well. It is a drive maintenance thing that improves performance that most people don't do.

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