Intel® VTune™ Amplifier XE

Synchronization Context Switches

Synchronization Context Switches metric measures the number of times a thread was switched off a processor because of making an explicit call to thread synchronization API. For example, in case of trying to wait on a synchronization object already occupied by another thread, the number of synchronization context switches will characterize the level of contention between threads.

Hardware Event Skid

Event skid is the recording of an event not exactly on the code line that caused the event. Event skids may even result in a caller function event being recorded in the callee function.

Event skid is caused by a number of factors:

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