slide1
Download
Skip this Video
Download Presentation
Performance Characterization of Mobile-Class Nodes: Why Fewer Bits is Better

Loading in 2 Seconds...

play fullscreen
1 / 1

Performance Characterization of Mobile-Class Nodes: Why Fewer Bits is Better - PowerPoint PPT Presentation


  • 76 Views
  • Uploaded on

Performance Characterization of Mobile-Class Nodes: Why Fewer Bits is Better. Michelle McDaniel and Kim Hazelwood University of Virginia.

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'Performance Characterization of Mobile-Class Nodes: Why Fewer Bits is Better' - rue


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
slide1
Performance Characterization of Mobile-Class Nodes: Why Fewer Bits is Better

Michelle McDaniel and Kim Hazelwood

University of Virginia

Mobile-class nodes---small, low power netbooks with limited available memory---are becoming increasingly popular in the personal computing market. Though originally designed with a 32-bit processor, these netbooks are now being shipped with a 64-bit mobile-class processor. We explore a variety of performance differences between mobile-class processors and server-class processors. Using the SPEC CPU2006 integer benchmarks, we show that the mobile-class processors do not benefit from the move to 64 bits like server-class processors do. We show that the limited memory available on these mobile-class nodes, along with the in-order nature of the processors, produce the greatest disparity in performance.

Mobile-Class vs. Server-Class

  • Mobile Class:
  • In-order processor
  • Main focus: low power, high performance-per-watt
  • Less RAM
  • Smaller L2 cache
  • Server Class:
  • Out-of-order processor
  • Focus: performance with power as a secondary consideration
  • More RAM
  • Larger L2 cache

Results Summary

  • libquantum
  • Mobile-Class node: 38% decrease in IPC from 32-bit to 64-bit mode
  • Server-Class node: 58% decrease in IPC from 32-bit to 64-bit mode
  • hmmer
  • Mobile-Class node: 4% decrease from 32-bit to 64-bit mode
  • Server-Class node: 56% increase from 32-bit to 64-bit mode
ad