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lionheart / openradar-mirror

A mirror of radars pulled from http://openradar.me/.
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39039986: launchd_sim high CPU utilization #19670

Open openradar-mirror opened 6 years ago

openradar-mirror commented 6 years ago

Description

Summary: Run Xcode and open a playground. The CPU utilization of the launchd_sim process immediately starts to increase.

The CPU utilisation never drops and is sufficient to cause the fans to spin to cool the CPU.

Steps to Reproduce:

  1. Open a playground in Xcode.

Sometimes it is sufficient to just open Xcode without opening a playground or project.

Expected Results:

playground is responsive and machine CPU is not excessive.

Actual Results:

playground is slow and CPU usage is excessive.

Version/Build:

Xcode 9.3 (9E145)

Configuration:

macOS High Sierra v10.13.4 iMac (27-inch, Late 2012) 3.4GHz Intel Core i7 32GB RAM

The output from xcrun simctl diagnose is attached

- Product Version: 9.3 Created: 2018-04-21T13:37:08.054600 Originated: 2018-03-30T00:00:00 Open Radar Link: http://www.openradar.me/39039986

openradar-mirror commented 6 years ago

Modified: 2018-05-15T16:41:52.106790