Comparing MMB2 and MMB Workloads
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Published: May 21, 2001
In the past, Microsoft Exchange Server benchmarks based on the MAPI protocol, with the LoadSim tool, have been measured using the Medium Messaging Benchmark (MMB).
The MMB2 workload, for LoadSim 2000, is a modification of the previous MMB workload. It is designed to reflect the significantly higher peak load on an Exchange 2000 Server. A peak load runs for the entire length of the test. This workload achieves the following:
Uses the Microsoft Outlook client.
Increases the amount of mail sent and received.
Increases the size and frequency of attachments.
Increases the number of distribution lists.
Adds Microsoft PowerPoint attachments.
Allows for users who log on and off a number of times during the course of a day.
The average message size is 74.9 kilobyte (KB), compared to 14.6 KB for the LoadSim "Medium User". The average number of messages sent during an eight-hour day is increased from 14 to 51. The average messages received during the eight-hour day is increased from 66 to 185.
The following tables have a complete comparison of the MMB2 workload to the MMB, or medium, workload.
Topology Properties |
MMB |
MMB2 |
|---|---|---|
Security |
|
|
Use a separate account for each Exchange Server user |
No |
No |
Use one account for all Exchange Server users |
Yes |
Yes |
Distribution Lists |
|
|
Use Distribution Lists |
Yes |
Yes |
Number of Distribution Lists per site |
30 |
100 |
Distribution List minimum/average/maximum |
2/10/2020 |
2/10/2020 |
Test Properties |
MMB |
MMB2 |
|---|---|---|
Tasks |
|
|
Send Mail |
|
|
Number of times per day |
4 |
7 |
Priority percent high |
0 |
1 |
Priority percent low |
0 |
0 |
Request receipts percent delivery |
0 |
0 |
Request receipts percent read |
0 |
0 |
Request receipts percent both |
0 |
0 |
Filename (Weight) |
|
|
Oups1k.msg |
60 |
37 |
Oups2k.msg |
13 |
18 |
Oups4k.msg |
5 |
14 |
Oups10kat.msg |
5 |
0 |
OupsWDatt.msg |
8 |
7 |
OupsXLatt.msg |
5 |
7 |
OupsBMobj.msg |
2 |
10 |
OupsXLobj.msg |
2 |
0 |
McPP1Matt.msg1 |
Na |
1 |
McPP100katt.msg2 |
Na |
5 |
McWD2Matt.msg3 |
Na |
1 |
Recipients per message |
3 |
1–5, average 3 |
Add a Distribution List to percent message sent |
30 |
30 |
Save a copy in Sent Items |
Yes |
Yes |
Process Inbox |
|
|
Read new mail per day |
Yes |
Yes |
Message Actions |
|
|
Reply |
7 |
20 |
Reply All |
5 |
7 |
Forward |
7 |
10 |
Delete |
40 |
100 |
Copy |
0 |
0 |
Read note delay minimum/average/maximum |
1.0/1.0/1.0 |
1.0/1.0/1.0 |
Load percent of attachments |
25 |
75 |
Accept percent of meeting requests |
70 |
70 |
Browse Mail |
|
|
Browse mail per day |
15 |
15 |
Public Folder Post |
Not tested |
Not tested |
Browse Public Folders |
Not tested |
Not tested |
Free/Busy |
|
|
Update schedule times per day |
|
4 |
Update Free/Busy information |
|
No |
Schedule size (KB) minimum/maximum/average |
|
5/40/22 |
Request Meetings |
|
|
Make new meetings per day |
0.1 |
2 |
Meeting Length (in hours) minimum/average/ maximum |
1/2/2004 |
1/2/2007 |
Attendees minimum/average/maximum |
1/3/2020 |
1/5/1940 |
Add a Distribution List percent of the time |
10 |
20 |
Make Appointments |
|
|
New appointments per day |
0.2 |
4 |
Appt length minimum/average/maximum |
1/2/2005 |
1/3/2009 |
Percent recurring appointments |
15 |
15 |
Percent all day events |
5 |
5 |
Browse Calendar |
|
|
Number of times per day |
3 |
6 |
Journal Mail Items |
|
|
Number of times per day |
Not tested |
Not tested |
Journal Applications |
|
|
Activity Number of times per day |
1.5 |
3 |
Logoff |
|
|
Number of times per day to log off |
Not tested |
3 |
Always keep connection |
Not tested |
No |
Empty Deleted Items |
Not tested |
Yes |
Browse Contacts |
|
|
Number of times per day |
Not tested |
10 |
Create contact |
|
|
Number times/day to make new contact |
Not tested |
1.4 |
Test/Logon |
|
|
Logging on immediately at the very beginning of the test |
Yes |
Yes |
Logging off at the end of each simulated day |
No |
Yes |
Empty Deleted Items folder while logging off |
Yes |
Yes |
Test Report: Approximate Message Traffic, per User, per Day |
|
|
Total received |
66.3 |
185 |
Reply |
3.76 |
20.56 |
Reply All |
2.67 |
6.48 |
Forward |
3.76 |
10.08 |
Total submitted |
14.18 |
51 |
Average Number of Recipients per Message (All Messages) |
4.68 |
3.63 |
Approximate receipts requested, per user, per day |
|
|
Read receipts |
0 |
0 |
Delivery receipts |
0 |
0 |
| 1 | McPP1Matt.msg is a new message file with a 1-megabyte (MB) PowerPoint presentation attachment. |
| 2 | McPP100katt.msg is a new message file with a 100-KB PowerPoint presentation attachment. |
| 3 | McWD2Matt.msg is a new message file with a 2-MB Microsoft Word attachment. |
Initialization |
MMB |
MMB2 |
|---|---|---|
Mailbox Setup |
|
|
Number messages in Inbox |
4 |
55 |
Number messages in Deleted Items |
1 |
|
Number of new folders |
40 |
10 |
Number of messages in new folders |
5 |
55 |
Calendar Setup |
|
|
Number of appointments |
25 |
25 |
Contact Setup |
|
|
Number of contacts |
64 |
64 |