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Revit OpEd: How Often to Synchronize with Central - SwC

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    Revit OpEd: How Often to Synchronize with Central - SwC

    Grist from a recent support conversation..."How often should we use Synchronize with Central (SwC)? We have some users doing it every minute."

    Well....every minute seems a bit much...but...

    The number of people actively working on a file affects the truth of the statement too. Every 30 minutes, for example, is too infrequent in my opinion. My own habit is to SwC as often as I complete any given task. I tend to take small bites, tasks that are 1-10 minutes, and SwC as soon as they are done.

    More frequent SwC is less data transmission than every 30 minutes, potentially. Replacing or reloading a title block for 1,000 sheets is not a small task and probably ought to be done at lunch, advising people to create new local files afterward. Otherwise each sync will need to needlessly update each local file's copy of the sheet's title block too, for everyone. If that is done while they are all away they just inherit the new version of the project with their new local file.

    It's all relative though because the transaction comparison between syncing that kind of change and closing a model and opening it later is subtle. In fact opening a file again might be slower, but reasonable, depending on how many people are involved. It can be justified though, especially if they are out of the project anyway such as out for lunch or after hours etc.

    I think it is more important to be aware of other users also using SwC, than imposing a specific time requirement. When more than one person uses SwC at the same time Revit has to parse those changes and it does so, more or less, in a single threaded manner, not like a multi-thread OS (though they are improving that all the time) doing simultaneous tasks. It has to reconcile changes and move to others once it is satisfied it can finish successfully. The more people forcing Revit to do that the same time the slower it gets for everyone. That's where the advise to schedule or increase the time between SwC came from. One client decided to build their own tool so users can see if someone is syncing. A button on their Quick Access Toolbar parked next to the SwC button is red when someone is syncing and green when nobody is. Green means go for it.

    Any sort of "Every 30 minutes" rule is often an over simplification, a rule meant to be easy to implement. In practice it can be just as harmful as helpful. If I slip and go 60 minutes or longer then that starts to slow down SwC times for everyone else too. Pushing and pulling data through a pipe takes time, smaller chunks of data generally take less time and less time to reconcile with the model too.

    I'd focus on developing awareness of other users syncing as the priority and it's increasingly important the more users that are working on the same project file.

    Click here to view the entire blog post.

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