Having never used Sublime Text before I decided to give it a shot and downloaded the latest ST3 build. After installing it and starting ST3, I see that it’s consuming a 100% of one of the cores in my MacBook Pro.
I don’t have any plugins installed. Sampling the plugin_host process shows it’s just sitting in the event loop:
Call graph:
2638 Thread_9126814 DispatchQueue_1: com.apple.main-thread (serial)
+ 2638 start (in plugin_host) + 52 [0x108e9e494]
+ 2638 main (in plugin_host) + 442 [0x108ea3604]
+ 2638 basic_queue_runner::run() (in plugin_host) + 76 [0x108ece012]
+ 2638 _pthread_cond_wait (in libsystem_c.dylib) + 869 [0x7fff8afedfe9]
+ 2638 __psynch_cvwait (in libsystem_kernel.dylib) + 10 [0x7fff8b1ed]