Response time data in a Monitor Group Performance report and Monitor Group Global Benchmark Report is calculated using different logic. As a result, you may notice a slight deviation in the average values deciphered from these reports.
Monitor Group Performance Report
While generating a performance report for your monitor group, Site24x7's reporting engine utilizes RAW average values of the individual monitor(s) in the group. For generating the average value of individual monitor, Site24x7's reporting engine uses the actual poll count for that monitor. After calculating the individual averages, then cumulative monitor average is calulated.
Monitor Group Global Benchmark Report
A Global Benchmark Report on the other hand combines the sum average (RAW average) of all the monitors of a particular type before calculating the average value. While calculating the final average, the cumulative sum average of individual monitor types is divided by the total poll count.
Let's see a practical example of how the average value is deciphered for Global Benchmark Report and Performance report.
Consider a sample monitor data from Monitor Group Zylker . Zylker group consists of four monitors, two website and two REST API monitors each. These are named URL1, URL2, RESTAPI 1, RESTAPI 2. The response time data in milliseconds, poll count for individual monitors and the average value is shown below;
Monitor Name
| URL1
|
Response Times detected
(in milliseconds)
| 456, 765, 876, 456, 876
|
Cumulative Sum
| 3429
|
Poll Count
| 5
|
Average Value
| 685.5
|
Monitor Name
| URL2
|
Response Times detected
(in milliseconds)
| 436, 715, 1176, 256, 176
|
Cumulative Sum
| 2579
|
Poll Count
| 5
|
Average Value
| 551.8
|
Website Monitor Cumulative Sum & Average:
Website Monitor cumulative sum= 6008 ms
Total poll count= 10
Website Monitor type average value= 600.8 ms
Monitor Name
| RESTAPI 1
|
Response Times detected
(in milliseconds)
| 456, 765, 876, 456
|
Cumulative Sum
| 2553
|
Poll Count
| 4
|
Average Value
| 638.25
|
Monitor Name
| RESTAPI 2
|
Response Times detected
(in milliseconds)
| 156, 565, 476, 756
|
Cumulative Sum
| 1953
|
Poll Count
| 4
|
Average Value
| 488.25
|
REST API Monitor Cumulative Sum & Average:
REST API Monitor cumulative sum= 4506 ms
Total poll count= 8
REST API Monitor type average value= 563.25 ms
Performance Report calculation: (685.5 + 551.8 + 488.25 + 638.25) /4= 590.95 ms
Global Benchmark Report calculation: 6008+4506)/18= 584.111 ms
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