Search code examples
ios7xcode5ibtool

why CPU is utilizing this much when I run xcode

Below is the screenshot of CPU utilization.

enter image description here

Just curious what are those Interface Builder Cocoa Touch Tool & ibtoold process.

Because of this, to run app, it takes me around 1 min least.

Note: I am using xcode 5

I see that this happens when there are more view controllers. I have around 25 view controllers.

Yes, I had created project in Xcode 4.6 and after updating, opened in Xcode 5.

Attached is the screenshot for the file inspector.

enter image description here

Solution

  • There is a stack overflow question along similar lines but the question involved only a single nib. The project in that case was created for iOS2 and used a new version of Xcode. This led me to examine the latest Interface Builder Release Notes (3.2) which states:

    "Interface Builder documents can no longer be saved in the NIB 2.x file format. NIB 2.x files will automatically be upgraded to NIB 3.x files upon opening."

    So, I would suggest you check the file inspector of your nib files and verify their current version. I suspect that Interface Builder is simply attempting to update 25 nib files to version 3.x. If you have an older Carbon nib files then please see the Xcode Release Notes (v.4.0 - current) as they require using version 3.2 in Xcode 4 and higher.

    Xcode 4.6.3 displays versioning of nibs on the file inspector using these menu items: Xcode 4.6.3

    While Xcode 5.0.1 displays versioning somewhat differently. Xcode 5.0.1

    The project document should also be in the latest format:

    Project File Version.

    The basic premise is that Xcode is converting the project file/nibs on load. If this recurs on every load I would report that as a bug to Apple at http://bugreport.apple.com. I think the information found is pointing to the correct issue. Checking that the files are using the latest version should fix the issue unless there is a bug.

    Other things to try:

    • Load the project on a separate machine/directory (There might be some corruption on your current one)
    • Run Console and capture logs as the problem is occurring (you will need to also capture system logs for Apple anyhow but the Console might show a useful error message)

    References

    • What is Interface Builder Cocoa Touch Tool, link.
    • Xcode Release Notes (v. 4.0 - current), link.