|05-27-12, 03:00 PM||#1|
Join Date: Jun 2009
Disk Performance Expectations vs. Reality
Joe Landman from Scalable Informatics writes about why the delivered performance of disk subsystems doesn't look anything like marketing specifications.
The overhead is the killer. Most people building systems really don't understand how much of a killer it is. IO is usually relegated to secondary or tertiary consideration, though as data sets grow large, this is a very bad/dangerous thing to do. Moreover, expectations of performance are far â?¦ far out of whack with reality. What a user seeing 100MB/s on a single threaded streaming case might expect for a random case, shouldn't be 100MB/s as well (for spinning rust disks). For some of the simpler tests we are doing (random 32k reads and writes to mimic a particular use case), we are seeing from 1-10 MB/s on real hardware.Read the Full Story.
|Thread||Thread Starter||Forum||Replies||Last Post|
|Auslogics Disk Defrag 126.96.36.199||News||Latest Tech And Game Headlines||0||05-17-12 07:40 AM|
|Boost Your Performance Goals 10x ' This Week on inside* Publications||News||Latest Tech And Game Headlines||0||05-13-12 05:20 PM|
|NVIDIA Unleashes the GeForce GTX 670 Graphics Card ' Performance Perfected (WCCFTECH)||News||GeForce GTX 670 Reviews||0||05-10-12 08:40 AM|
|My UT2003 Tweak Guide||DXnfiniteFX||Gaming Central||48||10-30-02 11:59 PM|
|New Western Digital drive performance||Nemesis||General Hardware||6||08-15-02 07:29 AM|