Formulas for Total Hits

Formulas

for

This calculatingarticle explains how Total Hits, Total Throughput, Average HitsHits, and Average ThroughputsThroughput are calculated in the Iteration summarySummary reportsreport.

ThisThese articlemetrics talksprovide information about calculationthe number of Totalrequests Hits,generated during a test and the amount of data transferred.

1. Total Throughput,Hits

Total Hits represents the total number of requests generated during the test.

Formula:

Total Hits = Total Requests

For example, if the test generates 125 requests, the Iteration Summary report shows:

Total Hits = 125

Note: A single user action can generate multiple HTTP requests. Therefore, Total Hits does not necessarily represent the number of test steps or user actions.

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2. Total Throughput

Total Throughput represents the total amount of data transferred by successful requests during the test.

Formula:

Total Throughput = avgSize × success

Where:

• avgSize = Average size of the response/request data, in KB.
• success = Number of successful requests.

Example

Assume the following values:

Average Size = 2.17 KB
Successful Requests = 25

The Total Throughput is calculated as:

2.17 KB × 25 = 54.25 KB

Therefore:

Total Throughput ≈ 54.3 KB

The result represents the total volume of data calculated from the average size and the number of successful requests.

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3. Average Hits

Average Hits represents the average number of requests generated per second during the test.

Formula:

Average Hits = Total Hits / Test Duration in seconds

Example

Assume:

Total Hits = 125
Test Duration = 25 seconds

The Average Hits and Average Throughput/s in the Iteration summary reports.is:

125 / 25 = 5 hits/s

1.Therefore:

Total Hits: Total

Average Hits == Total5 request.hits/s

This means

that

2.the Totaltest Throughput:

generated

Formulas: TotalThroughput = (stepSummary.avgSize * stepSummary.success)

Ex: ifan average sizeof is5 2.17requests andper successsecond count is 25 thenduring the Totaltest Throughput =2.17*25= 54.3 KBduration.

3.Average Hits:

Formula: Average hits = total hits (requests) / Duration of test in secs

Ex: If total request is 125 and Duration of test in sec in 25 sec thenNote: Average Hits =125/25is =5an hits/s.average value. It does not mean that exactly the same number of requests was generated every second.

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4. Average Throughput:Throughput

Average Throughput represents the average amount of data transferred per second during the test.

Formula:

Average Throughput = Total throughputThroughput / Test Duration in kbseconds

/

Example

duration of test in secs

Assume:

Ex:

Total throughputThroughput in kb is= 54.3 KB
andTest Duration of= 25 seconds

The Average Throughput is:

54.3 KB / 25 seconds = 2.172 KB/s

Therefore:

Average Throughput ≈ 2.17 KB/s

This means that the test intransferred secan inaverage 25secof thenapproximately 2.17 KB of data per second.

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Summary

The following table summarizes the metrics and their formulas:

Metric	Description	Formula	Unit
Total Hits	Total number of requests generated	Total Requests	Hits/requests
Total Throughput	Total data volume calculated from successful requests	avgSize × success	KB
Average Hits	Average number of requests generated per second	Total Hits / Duration	Hits/s
Average Throughput	Average amount of data transferred per second	Total Throughput / Duration	KB/s

Complete Example

For a test with the following results:

Total Requests = 125
Successful Requests = 25
Average Size = 2.17 KB
Test Duration = 25 seconds

The metrics are calculated as follows:

Total Hits
= 125 requests

Total Throughput
= 2.17 KB × 25
= 54.3 KB

Average Hits
= 125 / 25
= 5 hits/s

Average Throughput
= 54.3 / 25
= 2.17 KB/s

Therefore, the Iteration Summary metrics would be:

Total Hits           = 125
Total Throughput     = 54.3 KB
Average Hits         = 5 hits/s
Average Throughput   =54.3/25 =2.17 KB/s.