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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Blem, E. Menon, J. Sankaralingam, K. |
| Copyright Year | 2013 |
| Description | Author affiliation: Univ. of Wisconsin - Madison, Madison, WI, USA (Blem, E.; Menon, J.; Sankaralingam, K.) |
| Abstract | RISC vs. CISC wars raged in the 1980s when chip area and processor design complexity were the primary constraints and desktops and servers exclusively dominated the computing landscape. Today, energy and power are the primary design constraints and the computing landscape is significantly different: growth in tablets and smartphones running ARM (a RISC ISA) is surpassing that of desktops and laptops running x86 (a CISC ISA). Further, the traditionally low-power ARM ISA is entering the high-performance server market, while the traditionally high-performance x86 ISA is entering the mobile low-power device market. Thus, the question of whether ISA plays an intrinsic role in performance or energy efficiency is becoming important, and we seek to answer this question through a detailed measurement based study on real hardware running real applications. We analyze measurements on the ARM Cortex-A8 and Cortex-A9 and Intel Atom and Sandybridge i7 microprocessors over workloads spanning mobile, desktop, and server computing. Our methodical investigation demonstrates the role of ISA in modern microprocessors' performance and energy efficiency. We find that ARM and x86 processors are simply engineering design points optimized for different levels of performance, and there is nothing fundamentally more energy efficient in one ISA class or the other. The ISA being RISC or CISC seems irrelevant. |
| Starting Page | 1 |
| Ending Page | 12 |
| File Size | 3537099 |
| Page Count | 12 |
| File Format | |
| ISBN | 9781467355858 |
| ISSN | 15300897 |
| e-ISBN | 9781467355872 |
| DOI | 10.1109/HPCA.2013.6522302 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2013-02-23 |
| Publisher Place | China |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Abstracts Reduced instruction set computing Mobile communication Servers |
| Content Type | Text |
| Resource Type | Article |
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