Hi Expers,
Now, I have to size SAPS/Memory for SAP Web Dispatcher.
Though I read SAP Web Desipatcher Sizing Guide,
I can't understantd about average number of messages per transaction: n.
Please tell me about
1.How can I estimate average number of messages per transaction: n.
->I thoght it means like steps(ST03N), but maybe it doesn't so.
2. Is my understanding of expression is correct?
=> messages/sec = 100,000 * 10 * 60% / 1800 = 333(it is guide's example)
-100,000 ->employees
- 10 -> 10 messages per transacton (ESS, maybe timesheet etc)
- 60% -> Max users that might use ESS at same time.
- 1800 -> 1800sec = 30 mins = 15:30-16:00
Sizing Guides describes as follows.
==============================================================
Throughput-based sizing: Use if you can estimate or know:
Peak load duration: T
Number of transactions which are processed within the peak load duration: K
Average number of messages per transaction: n
MessagesPerSecond = K * n / T
The variables “m" and "n" can be customized, modified and personalized with
ex)
Throughput-based sizing
A company with 100,000 employees implements a weekly ESS (Employee Self-Service)
scenario to record working time with 10 messages, for example, 5 user interaction steps with
2 messages. According to IT operation statistics, ca. 60% of all employees will execute the
ESS scenario in the peak time period on Friday afternoon between 15:30 and 16:00
=> messages/sec = 100,000 * 10 * 60% / 1800 = 333
-100,000 ->employees
- 10 -> 10 messages per transacton (ESS, maybe timesheet etc)
- 60% -> Max users that might use ESS at same time.
- 1800 -> 1800sec = 30 mins = 15:30-16:00
==============================================================
Thank you for advance,
Best Regards,
Toshikazu
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