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Avi Silberschatz (born in Haifa, Israel) is an Israeli computer scientist and researcher.He is known for having authored many influential texts in computer science. He finished high school at the Hebrew Reali School in Haifa, and graduated in 1976 with a Ph.D. in computer science from the State University of New York (SUNY) at Stony Brook.
The Mach System – Appendix to Operating System Concepts (8th ed) by Avi Silberschatz, Peter Baer Galvin and Greg Gagne; A comparison of Mach, Amoeba, and Chorus; Towards Real Microkernels – Contains numerous performance measurements, including those quoted in the article
In computer science, a multilevel feedback queue is a scheduling algorithm. Scheduling algorithms are designed to have some process running at all times to keep the central processing unit (CPU) busy. [1]
daemon: Operating systems often start daemons at boot time and serve the function of responding to network requests, hardware activity, or other programs by performing some task. Daemons can also configure hardware (like udevd on some Linux systems), run scheduled tasks (like cron), and perform a variety of other tasks.
In computer science, The System Contention Scope [1] is one of two thread-scheduling schemes used in operating systems.This scheme is used by the kernel to decide which kernel-level thread to schedule onto a CPU, wherein all threads (as opposed to only user-level threads, as in the Process Contention Scope scheme) in the system compete for the CPU. [2]
Most operating systems (including Solaris, Mac OS X and FreeBSD) use a hybrid approach called "adaptive mutex". The idea is to use a spinlock when trying to access a resource locked by a currently-running thread, but to sleep if the thread is not currently running. (The latter is always the case on single-processor systems.) [8]
A process with two threads of execution, running on one processor Program vs. Process vs. Thread Scheduling, Preemption, Context Switching. In computer science, a thread of execution is the smallest sequence of programmed instructions that can be managed independently by a scheduler, which is typically a part of the operating system. [1]
The Compatible Time-Sharing System (CTSS) was the first general purpose time-sharing operating system. [2] [3] Compatible Time Sharing referred to time sharing which was compatible with batch processing; it could offer both time sharing and batch processing concurrently. CTSS was developed at the MIT Computation Center ("Comp Center").