Information Technology Reference
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that not all of the transaction groups peak Mon-Fri noon. Some of the groups peak
during Sat
A
.
M
. Looking a little closer, you will realize that the weekday noon
transaction groups are predominantly browsing activities in contrast to the Saturday
transaction groups that are predominantly purchasing activities. This weekly
workload has more than one peak. To complete the workload plan, you will need to
revisit each of the two peaks and develop separate workload plans, now designated
weekday browsing and Saturday purchasing.
Look for the peak active users for each transaction group in all workload plans.
Failure to revisit each transaction group for all plans may cause performance test
underreporting. For example, if you test the weekday browse peak workload without
any purchases because purchases peak on Saturday, you may miss the fact that a
few purchase transactions during the weekday could noticeably slow down a browse
response. Although the number of customers making purchases during the week
does not reach the Saturday 500 peak, you should strongly suspect that there may be
at least 50 purchases (10% of Saturday peak) during the weekday browse workload
peak. Similarly, the number of customers doing catalog searches on Saturday does
not reach the 2,000 weekday peak; however, you should suspect that there may be at
least 200 catalog browses (10% of the weekday peak) during the purchase Saturday
workload peak.
Here is the revised workload plan split out to represent the two workload peaks
discovered so far.
Draft 3
Performance workload plan for weekday browsing
Response time
requirement
Peak active
users/Customers
day/time of peak
activity
Transaction group
Menu navigation
Log on/Log off
Product detail display
Purchase steps
Catalog search
Credit card payment
Max 3 seconds
Max 3 seconds
Max 4 seconds
Max 7 seconds
Max 10 seconds
Max 30 seconds
2,000
2,000
2,000
50
2,000
50
Mon-Fri 12-1
P
.
M
.
Mon-Fri 12-1
P
.
M
.
Mon-Fri 12-1
P
.
M
.
Mon-Fri 12-1
P
.
M
.
Mon-Fri 12-1
P
.
M
.
Mon-Fri 12-1
P
.
M
.
Draft 3
Performance workload plan for saturday purchases
Response time
requirement
Peak active users/
customers
Day/time of
peak activity
Transaction group
Menu navigation
Log on/Log off
Product detail display
Purchase steps
Catalog search
Credit card payment
Max 3 seconds
Max 3 seconds
Max 4 seconds
Max 7 seconds
Max 10 seconds
Max 30 seconds
500
500
200
500
200
500
Sat 9
A
.
M
.-11
Sat 9
A
.
M
.-11
Sat 9
A
.
M
.-11
Sat 9
A
.
M
.-11
Sat 9
A
.
M
.-11
Sat 9
A
.
M
.-11
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