| 21. | The performance drawbacks of simple redirector implementations can be largely addressed by kernel-level drivers that avoid context switches.
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| 22. | Once all CPUs have executed a context switch, then all preceding RCU read-side critical sections will have completed.
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| 23. | On uniprocessor systems, a thread running into a locked mutex must sleep and hence trigger a context switch.
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| 24. | This design suffered from the need to flush CPU caches following context switches between 68k and PowerPC code.
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| 25. | Minimizing such context switches required a large amount of effort and planning, making adoption of mixed binaries somewhat unpopular.
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| 26. | If it does, there is another context switch and memory mapping to complete the call into the user-space server.
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| 27. | User level code was run using preemptive multitasking, context switches were forced on I / O operations or clock ticks.
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| 28. | In response to an interrupt, there is a context switch, and the code for the interrupt is loaded and executed.
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| 29. | Code can instantly switch between them, allowing for fast context switches between an application and an OS or between two threads.
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| 30. | The main issue with this type of rootkit is that hidden processes are still able to run despite various context switches.
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