000			nam a22 7a 4500
999			_c28502 _d28502
008			190613b xxu||||| |||| 00| 0 eng d
020			_a9781627056021
082			_a005.43 _bBHA
100			_aBhattacharjee, Abhishek
245			_aArchitectural and operating system support for virtual memory
260			_bMorgan & Claypool, _c2018 _aMadison :
300			_axvii, 157 p. : _bill. ; _c24 cm.
365			_b69.95 _cUSD _d00
490			_aSynthesis lectures on computer architecture
504			_aIncludes bibliographical references.
520			_aAnnotation. This book provides computer engineers, academic researchers, new graduate students, and seasoned practitioners an end-to-end overview of virtual memory. We begin with a recap of foundational concepts and discuss not only state-of-the-art virtual memory hardware and software support available today, but also emerging research trends in this space. The span of topics covers processor microarchitecture, memory systems, operating system design, and memory allocation. We show how efficient virtual memory implementations hinge on careful hardware and software cooperation, and we discuss new research directions aimed at addressing emerging problems in this space.Virtual memory is a classic computer science abstraction and one of the pillars of the computing revolution. It has long enabled hardware flexibility, software portability, and overall better security, to name just a few of its powerful benefits. Nearly all user-level programs today take for granted that they will have been freed from the burden of physical memory management by the hardware, the operating system, device drivers, and system libraries.However, despite its ubiquity in systems ranging from warehouse-scale datacenters to embedded Internet of Things (IoT) devices, the overheads of virtual memory are becoming a critical performance bottleneck today. Virtual memory architectures designed for individual CPUs or even individual cores are in many cases struggling to scale up and scale out to today's systems which now increasingly include exotic hardware accelerators (such as GPUs, FPGAs, or DSPs) and emerging memory technologies (such as non-volatile memory), and which run increasingly intensive workloads (such as virtualized and/​or "big data" applications). As such, many of the fundamental abstractions and implementation approaches for virtual memory are being augmented, extended, or entirely rebuilt in order to ensure that virtual memory remains viable and performant in the years to come.
650			_aComputer systems
650			_aStorage
650			_aVirtual memory
650			_aMain memory
710			_aLustig, Daniel
942			_2ddc _cBK