Friends

Sunday, December 12, 2010

Useful IO profiles for simulating various workloads

A buddy of mine [Liang Yang] recently shared the following table with me and I thought you might also find it useful with trying to simulate various workloads.  In particular when testing and evaluating Hyper-V. A tool like IOMeter [from www.iometer.org] can be programmed with the mixes of reads/wrtes and sequential/random IO's detailed below.

Workload Category
I/O Size
Percentage of READ vs. WRITE
Percentage of RANDOM vs. SEQUENTIAL
Web File Server
4KB
95% RD vs. 5% WR
75% RAND vs. 25%  SEQ
Web File Server
8KB
95% RD vs. 5% WR
75% RAND vs. 25%  SEQ
Web File Server
64KB
95% RD vs. 5% WR
75% RAND vs. 25%  SEQ
Decision Support System DB
1MB
READ
RANDOM
Media Streaming
64KB
98% RD vs. 2% WR
SEQUENTIAL
SQL Server Log
64KB
WRITE
SEQUENTIAL
OS Paging
64KB
90% RD vs. 10% WR
SEQUENTIAL
Web Server Log
8KB
WRITE
SEQUENTIAL
OLTP DB
8KB
70% RD vs. 30% WR
RANDOM
Exchange Server
4KB
67% RD vs. 33% WR
RANDOM
Workstation
8KB
80% RD vs. 20% WR
80% RAND vs. 20% SEQ
Video on Demand
512KB
READ
RANDOM

0 comments:

Post a Comment

#
### ###