title: How can I debug high cpu usage in electron?
body: <p>I'm writing an Electron app and a few builds back testers started noticing that two electron.exe processes were consuming a lot of CPU time all the time. One pegging a CPU core and the other using about 85% of a core.</p>
  
  <p>I'm certain that this was not always the case as builds several months ago didn't do this. But I'm at a loss to know how to debug what code changes may have introduced this as the code base has evolved dramatically over that time.</p>
  
  <p>process.getIOCounters() reports that several gigabytes of IO is occurring every few minutes. The application is not deadlocked and everything still works it is just chewing through CPU. It happens anytime the app is open even if it is in the background without any user input. I only have windows 10 x64 systems that I've deployed this to as Electron 1.7.9 and also 1.7.5.</p>
  
  <p>Based on the behavior I'm certain that this IO is interprocess communication between the render and main threads, but I'm not manually performing any IPC. I think this problem is being caused by some module we've introduced that improperly resides in the rendered thread.</p>
  
  <p>My question, how does one debug the The Electron render/main thread IPC pipe? Can it be hooked to know what the contents of the gigabytes of traffic are?</p>