Fast track workload evaluation, Calculating mcr, Figure 7 – Dell PowerEdge R510 User Manual

Page 13: Sqlio real rate test from disk (large file), Power edge r510

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Dell R510 Reference Configuration for Microsoft SQL Server® 2008 R2 Fast Track Data Warehouse

Page 11

Figure 7. SQLIO Real Rate Test from Disk (Large File)

POWER EDGE R510

PERC H700

Controller

INTERNAL STORAGE

RAID 1

Windows Server 2008 R2 SP1

SQL Server 2008 R2

Intel X5675

6 core

CPU

RAID 1

RAID 1

RAID 1

RAID 1

Single RAID 1 Disk Group

Maximum I/O rate: 386 MB/s

H700 PERC Controller

Maximum I/O rate: 1534 MB/s

SQL Server 2008 R2 Enterprise

Single Socket Intel six core

Aggregate maximum I/O rate: 1533 MB/s

Fast Track Workload Evaluation

The performance of a Fast Track database configuration is measured using two core metrics: Maximum
CPU Consumption Rate (MCR) and Benchmark Consumption Rate (BCR).

Calculating MCR
MCR indicates the per core I/O throughput in MB or GB per second. This is measured by executing a
pre-defined query against the data in the buffer cache, and measuring the time taken to execute the
query against the amount of data processed in MB or GB. MCR value provides a baseline peak rate for
performance comparison and design purposes.

For the validated configuration with one Intel X5675 six core processors, the system aggregate MCR was
1722 MB/s. The realized MCR value per core was 287 MB/s.

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