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Monday, April 24 • 5:50pm - 6:10pm
362: How Fast is Your Power System?

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IBM regularly publishes 'feeds and speeds' of their latest hardware offerings using measurements that are sometimes hard to understand or comprehend. In this session we will explain the speeds of various parts of the hardware using an adjusted time scale we mere humans can better understand. If we change the scale and assume the fastest Power instruction takes 1/10 of a second, how long would it take to read a page from a spinning disk? How long would it take for a L2 cache miss? We'll take a look at the relative speeds of various hardware operations to get a better appreciation of the blindingly fast computer hardware that we all use everyday.

Learning Objectives:
After attending this session, you will:
1. Understand the relative speed differences of different hardware operations -- simple instructions, memory access, DASD access, and network access.
2. You will understand better how to optimize your software, so that you can focus on improving the areas where the most benefit can be realized.

avatar for John Vriezen

John Vriezen

Principal Technology Architect, Precisely
I have been working with the IBM i platform for 35+ years, initially at IBM Rochester for 9 years, working  on DB2 and the Storage Management.  Then onto ShowCase Corp. working on Essbase OLAP engine for IBM i.  Currently I with Precisely, (formerly Syncsort, Vision Solutions... Read More →

Monday April 24, 2023 5:50pm - 6:10pm MDT
Plaza Court 6
  • Session Level All
  • Audience If you want to better understand how the speeds of different computer operations compare to one another, this session is for you.