X2a : a long time to open a project ...

Can you provide more information ?

What's your system and what's in your project ?

* The processor is not full loaded during the loading of the project.

I have desactivated some prochannel effects that I don't use in my project. The diffence is not really obvious but thanks for the advise!

During the opening 1.7/ 4Go and at the end after 5 minutes of loading, when the project is finnaly open 1.86/4GO Sonar seems to do something, it uses 12 % of the cpu during this time...

pgranier


the system doesn't to do anything special. The harddrive is not reading or writing at its limit. Ram is ok and cpu also.

How many processes are being loaded at your Windows startup?  You might have hidden threads running that you are not aware of, including "bloat ware" by the computer manufacture.  My own experience would be to add 4Gb of RAM to your system.
 
Hope this helps. 

When the project is open I still have 2 GO of ram free... So I don't think adding ram will be useful I have another project with 30 Vsti (created in sonar x1)that use 2.5GO/4GO of ram when open and sonar opens it in around 1 minute. The problem is this new project created by sonar X2 that takes 5 minutes to open... I have monitored the harddrive use during the opening and nothing special... The hardrive is not used à 100%.

4 gigs of ram is not enough even though you think it's fine. Try freezing all the VSTi's and save the project. See if it opens faster with the freeze in place. Remember, windows may be writing stuff to the disk if it thinks the memory is low and it needs to use some memory to function.

The problem is not during the reading of the track that works perfectly but during the opening (the time between the moment I select my project and the moment that the project is launched in SONAR and I can edit it)

The size of the project is around 1 Mo. I do not have any snapshot. None of the thread is full loaded and the harddrive use is not at the maximum. I have checked this information with the ressources monitor of Windows 7.

I had to ditch X2 and go back to X1. Got sick of the weird behavior on my Windows 7 x64 system. Its powerful enough to run anything. But X2 still likes to eat away at the CPU upon startup. It's sluggish compared to X1, which tells me that it feels bloated. For all I know it could be reacting to certain plugins. But this occured before installing any. I struggle and struggled. Eventually, I open X1, and lo and behold, no problems whatsoever on the same system. 

I just wish Cakewalk would get their software bugs minimized before throwing in more "luxury" features to crows up the software. You just end up with more problems and never a smooth running program. Hey 8.5! I'm starting to miss you!