Slow preparation speed

crispy_melon

I've been working on a model recently and it's slowly become harder and harder to actually make new extrudes and fillets and all due to the "preparation time" I'm unsure what the problem is, I'm fairly new to onshape but, this doesn't seem normal. I have a high end gaming PC with a high end CPU too. I checked the performance tab and nothing seems to make sense for causing the performance issue. I've tried testing my browser compatibility along with other recommendations but nothing seems to help reduce the nearly 10 second preparation time. it really causes it to be almost impossible to work on the model. anyone have any recommendations?  

eric_pesty

I've been experiencing this to some extent as well...
I have noticed this in the changelog from today's release:
"Fixed an underlying issue that can cause slowness when editing features and sketches"

I'm hoping that will help, check to see if it still happens after your document is updated to the latest version...

NeilCooke

@crispy_melon your feature count is creeping up. Too many and you’ll have slow regeneration to contend with as well. 

paul_chastell

A customer reported problems working with features. They worked with us to identify the problem. We then fixed it. We also saw from logs that other customers were likely affected and should now see better performance opening features and sketches in some cases. However, the fix that was made may not help in all cases. I would encourage customers that have performance issues to write tickets so that we can chase these issues down and fix them. 

S1mon

I should write a ticket for this, but one of the slowest features in many of my models is Derive. When this is done with a version, I don't really understand why it needs to be so slow. I would think that it would be cached and have a very low rebuild time.

paul_chastell

Yeah, I would stick a ticket in @S1mon because I would expect that if the source of the derive is versioned then it would not need to regenerate that source part. If you do stick in a ticket it would be very useful to include a time at which you saw this happen: makes it easier to track down related events in the logs. 

eric_pesty

The document I was working in had other issues (sheet metal instability) so I didn't want to "muddy the waters" with that...
However if I still see long "preparation" times after it has been updated to latest version I will submit a ticket.

crispy_melon

Thankyou for all the feedback! It's very helpful for a quite inexperienced Onshape user like myself.