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Thread: Performance Optimization in Revit

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    100 Club s.messing's Avatar
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    Default Performance Optimization in Revit



    I have been scouring the net and elsewhere to learn as much as possible about how to make a Revit file more "efficient" which in my case means faster (but also smoother/ cleaner). I have compiled a list that I would like to share. Any response would be appreciated. I hope to be helpful to others who are in my situation and also to be helped by those who have tried out some of these techniques. Maybe people can help me rank these issues with numbers or rate them as very important, important, or not important?

    I will give an example project so that you can see where I am coming from: We have one project that is in the office now that is a slow monster! Eight story building on a plinth block with two stories of garage. 175 Megs; 8 person team; 6 standard worksets (core, shell, interior, grids, etc); several linked CAD files; several linked Revit files (Central, Structure, Existing, Site); 3 Gig switch; 3-8 min. STC times (sometimes more); 3-8 min. open times (local or central). There are many instances when the file is slow, but most especially when STC and usually when opening. So, without further delay, these are some of ideas about how to be more efficient in Revit. This list does not address hardware concerns, though it probably should.

    1. Compacting Central and local files regularly (maybe once a week)
    2. Making components instead of groups and in place familie
    3. Uncheck preview image box in save menu
    4. Opening specified worksets (not last viewed worksets)
    5. Removing/ unloading linked dwgs
    6. Only linking dwgs into necessary views
    7. Limit locking of objects (unless necessary)
    8. Turn on Open GL and overlay planes off
    9. Clean (purge) unused families regularly
    10. Save locally on your hard drive not on a server
    11. Keep a "lean and appropriate" template file
    12. Minimize the use of imported geometries (CAD or otherwise)
    13. Use only the detail that you need in families
    14. Don’t “over model” (don’t put in 100 unnecessary 3D toilets, for example)
    15. Put things on worksets that are not visible by default (example: finishes)
    16. When STC, have one open simple view
    17. When STC, turn off shadows and shading
    18. Staggering STC’s
    19. Avoid or use carefully groups, arrays, and unit types
    20. Start with generic types (walls, floors, etc.) and get more specific as necessary
    21. Turn off shadows (for all views, and especially during printing)
    22. Regularly review and fix warnings
    23. Don’t pour hot coffee on your machine when you are unhappy

    Anyway, I’d love to hear what you all think. Have a good day.

    Thanks,

    Stephen


  2. #2
    Revit Arch. Wishlist Mgr. Wes Macaulay's Avatar
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    Default Re: Performance Optimization in Revit

    Your STC times are insanely fast given the size of the file and the team (more team members usually translates into longer STCs due to greater volumes of data to be reconciled).

    Your tips are spot on... how is file linking for you in terms of drafting elements landing where they should?
    Wes Macaulay LEED AP
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    Tell Adesk what you think!

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    Certifiable AUGI Addict Dimitri Harvalias's Avatar
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    Default Re: Performance Optimization in Revit

    Great list and very important for all to realize what's going on in the background with Revit.
    I have a team working on a 600,000sf multi-tower, one square block project with 3 users. The file is a mish mash of linked rvt and dwg's, design options etc.
    They were having performance issues and I looked at the file. It was 207 megs and should be nowhere near that large at this stage. I compacted the central file and it went down to 57megs. Needless to say performance has improved.

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    AUGI Addict DaveP's Avatar
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    Default Re: Performance Optimization in Revit

    We've noticed that an occasional SaveAs seems to cut the file size down, too. Don't know if it just does an automatic Compact before the SaveAs, but it often makes the Central 70 to 80% the size of the original.
    Go back to AutoCAD? I'd rather lose my right arm!

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    100 Club dgraue's Avatar
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    Default Re: Performance Optimization in Revit

    Be sure to check through your families for duplicates. We discovered that a number of our families were duplicating for some reason so instead of just one "Tub" we ended up with "Tub-01" through "Tub-15". We had to select all instances of each one and change back to the original tub and delete the duplicates. After we worked through a number of family categories our file size reduced about 15%.

    We also "Save-As" every three weeks and at project mile-stones to reduce the file size by 40%. (But the file size creeps back up a little each day. Revit files seem to compile extraneous data that can only be purged through "Save-As". Factory, do you have your best people working on a solution to this?

    DG

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    Certified AUGI Addict patricks's Avatar
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    Default Re: Performance Optimization in Revit

    Quote Originally Posted by dgraue
    Be sure to check through your families for duplicates. We discovered that a number of our families were duplicating for some reason so instead of just one "Tub" we ended up with "Tub-01" through "Tub-15". We had to select all instances of each one and change back to the original tub and delete the duplicates. After we worked through a number of family categories our file size reduced about 15%.

    We also "Save-As" every three weeks and at project mile-stones to reduce the file size by 40%. (But the file size creeps back up a little each day. Revit files seem to compile extraneous data that can only be purged through "Save-As". Factory, do you have your best people working on a solution to this?

    DG
    I'm pretty sure Compact File does the same as a Save As, in terms of reducing file size.
    Intern Architect, BIM Manager/Coordinator
    AERC, PLLC
    Hernando, Mississippi

    Revit - all up in your voxel space

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    100 Club dgraue's Avatar
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    Default Re: Performance Optimization in Revit

    Quote Originally Posted by patricks
    I'm pretty sure Compact File does the same as a Save As, in terms of reducing file size.
    I thought so too, but we seem to get a little better compression out of a "Save-As".

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    AUGI Addict MikeJarosz's Avatar
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    Default Re: Performance Optimization in Revit

    Quote Originally Posted by Wes Macaulay
    Your STC times are insanely fast
    First time I've ever heard STC called "insanely fast". Haven't heard that one in these parts.
    "everything you know is wrong...." -FST

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    NavisWorks Moderator david.kingham's Avatar
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    Default Re: Performance Optimization in Revit

    Our STC times are very short (maybe 1 minute) on a 100mb project...made a huge difference to switch to a gigabit network

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    I could stop if I wanted to neb1998's Avatar
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    Default Re: Performance Optimization in Revit

    Quote Originally Posted by david.kingham
    Our STC times are very short (maybe 1 minute) on a 100mb project...made a huge difference to switch to a gigabit network
    wouid make sence, on a 100 meg network your only getting about 10-12 meg real speed per sec
    Ben Kane


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