Download instruments file xcdoe

You might want to put it in your Dock, or left sidebar for the future. Once you have launched Instruments for the first time, you can alternatively launch Instruments directly from Spotlight. So we need to go declare the device to be used for development. If all went well in the previous step, you should now be able to select your iOS device under All Processes.

For more data, tap on Trace Highlights in the left sidebar, and it will change to say Activity Monitor. I always say yes to this. Open the Applications folder and open the new version of Xcode. If you renamed Xcode, make sure you open the correct application. Xcode may prompt you to install additional components. Click install. This will take a few minutes.

Once the components are installed, Xcode will launch. If you encounter any errors while trying to build or run a project, check which device you are trying to launch. The new version may not remember the device you were using before.

If so, click on the device and choose "Add additional simulators" from the drop down menu to add the device you want. If you don't need the older versions of Xcode on your computer, you can uninstall them and get some hard drive space back.

You can also delete the. Before making the switch to development, I was a strategist and GM in the tech space. If you read this far, tweet to the author to show them you care. Tweet a thanks. Learn to code for free. Get started. Forum Donate. Ai-Lyn Tang. Run Instruments in deferred mode : Permanently enable deferred mode, which increases accuracy when doing performance profiling, in the Recording pane of Instruments preferences. Zoom in and out in the timeline pane : Pinch the trackpad, use the scroll wheel while pressing the Option key, or press Option or Control and drag across a section of data in the timeline pane to zoom in and out.

Filter a range of data in the timeline pane : Drag across a portion of the timeline pane to isolate the events that occurred at that time and display them in the detail pane. Set flags in the timeline pane : Place flags in the timeline pane to mark areas of interest for analysis.

Pin and unpin a timeline : Move the pointer over the left side of the instrument and click the pin or unpin button. View different types of data in the detail pane : Use the navigation bar of the detail pane to switch between different types of collected data. Use the extended detail pane : Use the extended detail area in the inspector pane to see a stack trace or other information for some recorded events.

Access source code from Instruments : Show your symbols in Xcode by Control-clicking on a user symbol in the detail pane, and choosing Reveal in Xcode from the popover. Look for performance bottlenecks : The Counters profiling template finds bottlenecks in your app by identifying an excessive number of events of particular types. Use Activity Monitor to track overall network and disk use : The Activity Monitor profiling template tracks overall system activity over time, including CPU, memory, network, and disk.

Find abandoned memory : The Allocations profiling template measures heap memory usage and tracks allocations, including specific object allocations by class. Find memory leaks : The Leaks profiling template measures memory usage in your app and identifies memory that has been allocated to objects that are no longer referenced and reachable.

Your feedback goes a long way toward making Xcode even better. Provide detailed information about issues, including your system and developer tool versions, and any relevant crash logs or console messages. To ask questions and find answers from Apple engineers and other developers, visit the Apple Developer Forums. This often happens when you're trying to sign and build your app from a different Mac than the one you originally used to request your code signing certificate.

It can also happen if your certificate has expired or has been revoked. For instructions on how to resolve this and other code signing errors, review the Code Signing Support page.