Load Test Report
50 + 50 up to 300

Top-level Metrics

The Top-level Metrics section depicts the overall performance of the system under test using the metrics collected during the test (average page duration, pages/sec, bandwidth, etc). Charts for key summary metrics are included help determine if performance degraded during the test.

Estimated User Capacity at least 100
Maximum Users Analyzed 300
Summary
Start Time 9:10 AM 2/11/09
Duration 12:44
Completed Pages 21,766
Total hits 85,919
Peak hits/sec 419.9
Peak transfer speed 25.0 Mbps
Peak cases/min 636.0
Total Pages Failed 6,511

Performance Goal Analysis

In this section, each user level is analyzed for the compliance of test-level performance goals. Page-level or transaction-level goals are not included in this analysis. See the User Capacity and Performance Goal sections for a broader analysis.

User Level Page Failure Rate
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User Level Analysis

Page Duration

The Page Duration chart shows the minimum, maximum and average page duration for all pages in the test that completed during the sample periods summarized for each user level. Note that the page duration includes the time required to retrieve all resources for the page from the server. It includes network transmission time but not browser rendering time. In a well-performing system, the page durations should remain below the required limits up to or beyond the required load (number of users), subject to the performance requirements set forth for the system.

Page Completion Rate

The Page Completion Rate chart shows the total number of pages completed per second during the sample periods summarized for each user level. In a well-performing system, this number should scale linearly with the applied load (number of users).

Transaction (URL) Completion Rate

The Transaction (URL) Completion Rate chart shows the total number of HTTP transactions (URLs) completed per second during the sample periods summarized for each user level. In a well-performing system, this number should scale linearly with the applied load (number of users).

Failures

The failures section chart illustrates how the total number of page failures and the page failure rate changed throughout the test relative to the sample periods summarized for each user level. A page can fail for any number of reasons, including failures in the network and servers (web, application or database). See the Failures section of the report for details on the page failures encountered. In a well-performing system, this number should be zero.

Bandwidth Consumption

The Bandwidth chart shows the total bandwidth consumed by traffic generated directly by the load test engines during the sample periods summarized for each user level. In a system that is not constrained by bandwidth, this number should scale linearly with the applied load (number of users). Note that other sources of bandwidth may be active during a test and may even be caused indirectly by the load test but may not be included in this metric. If the Advanced Server Analysis module was used to collect server metrics, refer to the Servers section of the report for more detailed data. The bandwidth consumption is described in terms of the servers; i.e. outgoing bandwidth refers to data sent by the server to the browser.

Cases/min

The Testcase Completion Rate chart shows the total number of testcases completed per minute during the sample periods summarized for each user level. In a well-performing system, this number should scale linearly with the applied load (number of users).

Waiting Users

The Waiting Users and Average Wait Time metrics help diagnose certain types of performance problems. For example, they can help determine what pages users have stopped on when a server becomes non-responsive. The 'Waiting Users' metric counts the number of users waiting to complete a web page at the end of the sample periods summarized for each user level. The 'Average Wait Time' describes the amount of time, on average, that each of those users has been waiting to complete the page.

Summarized by the selected user levels, this table shows some of the key metrics that reflect the performance of the test as a whole.

User Level Pages/sec Page Failure Rate Hits/sec Bandwidth Out Min Page Dur Avg Page Dur Max Page Dur Waiting Users Average Wait Time
50 10.3 .00% 35.4 5.2 Mbps .008 .114 2.375 7 .142
100 21.2 .00% 73.0 10.4 Mbps .008 .135 5.153 0  
150 30.7 2.05% 110.0 15.2 Mbps .008 .176 4.911 1 .554
200 36.8 .00% 124.0 19.5 Mbps .009 .645 10.772 41 .489
250 42.7 42.97% 234.6 17.2 Mbps .008 .619 7.444 24 .570
300 42.1 25.76% 138.1 21.6 Mbps .010 2.181 8.247 73 1.412
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Time-based Analysis

Page Duration

The Page Duration chart shows the minimum, maximum and average page duration for all pages in the test relative to the elapsed test time (sample period) in which they completed. Note that the page duration includes the time required to retrieve all resources for the page from the server. It includes network transmission time but not browser rendering time. In a well-performing system, the page durations should remain below the required limits up to or beyond the required load (number of users), subject to the performance requirements set forth for the system.

Page Completion Rate

The Page Completion Rate chart shows the total number of pages completed per second relative to the elapsed test time (sample period) in which they completed. In a well-performing system, this number should scale linearly with the applied load (number of users).

Transaction (URL) Completion Rate

The Transaction (URL) Completion Rate chart shows the total number of HTTP transactions (URLs) completed per second relative to the elapsed test time (sample period) in which they completed. In a well-performing system, this number should scale linearly with the applied load (number of users).

Failures

The failures section chart illustrates how the total number of page failures and the page failure rate changed throughout the test relative to the elapsed test time (sample period) in which they occurred. A page can fail for any number of reasons, including failures in the network and servers (web, application or database). See the Failures section of the report for details on the page failures encountered. In a well-performing system, this number should be zero.

Bandwidth Consumption

The Bandwidth chart shows the total bandwidth consumed by traffic generated directly by the load test engines throughout the test relative to the elapsed test time (sample period). In a system that is not constrained by bandwidth, this number should scale linearly with the applied load (number of users). Note that other sources of bandwidth may be active during a test and may even be caused indirectly by the load test but may not be included in this metric. If the Advanced Server Analysis module was used to collect server metrics, refer to the Servers section of the report for more detailed data. The bandwidth consumption is described in terms of the servers; i.e. outgoing bandwidth refers to data sent by the server to the browser.

Cases/min

The Testcase Completion Rate chart shows the total number of testcases completed per minute relative to the elapsed test time (sample period) in which they completed. In a well-performing system, this number should scale linearly with the applied load (number of users).

Detailed Page Durations

The Detailed Page Durations chart shows the duration of each completed page plotted as a single point on the chart. This can give a more complete picture of system performance than the min/max/avg metrics plotted above by differentiating the performance of majority of pages from the outliers.

Waiting Users

The Waiting Users and Average Wait Time metrics help diagnose certain types of performance problems. For example, they can help determine what pages users have stopped on when a server becomes non-responsive. The 'Waiting Users' metric counts the number of users waiting to complete a web page at the end of the sample period. The 'Average Wait Time' describes the amount of time, on average, that each of those users has been waiting to complete the page.

Test summary metrics

Sorted by the elapsed test time, this table shows some of the key metrics that reflect the performance of the test as a whole.

Time Users Pages/sec Page Failure Rate Hits/sec Bandwidth Out Min Page Dur Avg Page Dur Max Page Dur Waiting Users Average Wait Time
00:00:10 10 .0   1.8 6.8 kbps       10 2.420
00:00:20 22 5.5 .00% 25.6 2.4 Mbps .017 1.345 10.872 0  
00:00:30 32 3.8 .00% 14.6 2.1 Mbps .015 .124 1.607 2 .204
00:00:40 39 5.7 .00% 16.7 4.0 Mbps .015 .167 2.180 1 .494
00:00:50 43 9.7 .00% 35.3 4.1 Mbps .011 .089 .973 0  
00:01:00 49 10.6 .00% 40.5 5.2 Mbps .009 .103 2.037 0  
00:01:10 50 9.3 .00% 28.3 5.3 Mbps .009 .087 .734 3 .478
00:01:20 50 9.4 .00% 31.9 4.9 Mbps .009 .145 2.361 2 .103
00:01:30 50 12.3 .00% 44.4 5.5 Mbps .009 .096 2.375 0  
00:01:40 50 9.4 .00% 30.8 5.0 Mbps .008 .133 1.384 1 .161
00:01:50 50 10.1 .00% 32.9 5.4 Mbps .009 .142 1.873 0  
00:02:00 50 11.5 .00% 43.9 5.0 Mbps .009 .090 .957 7 .142
00:02:10 55 11.0 .00% 38.3 5.5 Mbps .009 .118 2.490 2 .236
00:02:20 63 12.7 .00% 44.5 6.4 Mbps .009 .107 1.857 4 .330
00:02:30 70 14.3 .00% 51.7 7.2 Mbps .008 .114 1.758 2 .444
00:02:40 80 15.4 .00% 54.2 8.1 Mbps .009 .192 3.261 6 .252
00:02:50 92 18.7 .00% 67.8 9.1 Mbps .009 .136 1.984 4 .604
00:03:00 95 18.8 .00% 61.9 10.3 Mbps .008 .128 1.959 2 .874
00:03:10 100 21.1 .00% 72.6 10.5 Mbps .009 .154 2.235 2 .159
00:03:20 100 22.2 .00% 77.3 10.4 Mbps .009 .156 4.951 0  
00:03:30 100 18.9 .00% 65.1 9.8 Mbps .008 .144 4.513 7 .355
00:03:40 100 20.9 .00% 70.4 10.5 Mbps .008 .129 4.345 3 .323
00:03:50 100 22.2 .00% 78.3 10.7 Mbps .008 .119 1.878 4 .153
00:04:00 100 21.7 .00% 74.1 10.7 Mbps .008 .115 5.153 0  
00:04:10 101 19.9 .00% 63.5 10.9 Mbps .008 .113 .856 1 .794
00:04:20 114 24.8 .00% 96.6 10.9 Mbps .008 .133 2.464 3 .075
00:04:30 125 25.0 .00% 89.8 12.3 Mbps .008 .167 2.216 3 .027
00:04:40 133 24.0 .00% 78.1 13.5 Mbps .008 .151 1.931 2 .229
00:04:50 137 29.9 .00% 104.8 14.5 Mbps .008 .156 2.024 2 .424
00:05:00 144 29.7 .00% 102.6 14.7 Mbps .008 .211 1.885 8 .474
00:05:10 150 29.1 .00% 102.0 14.7 Mbps .009 .199 2.592 11 .467
00:05:20 150 29.5 .00% 95.7 15.7 Mbps .008 .166 4.590 6 .913
00:05:30 150 34.6 .00% 123.2 15.7 Mbps .008 .177 4.911 3 .668
00:05:40 150 30.8 .00% 106.6 15.4 Mbps .008 .185 3.040 4 .227
00:05:50 150 31.0 .00% 104.7 16.1 Mbps .008 .191 2.615 3 .284
00:06:00 150 30.6 .00% 103.9 15.6 Mbps .009 .198 4.538 6 .314
00:06:10 150 29.5 13.24% 133.9 13.1 Mbps .009 .115 1.863 1 .554
00:06:20 158 32.8 28.70% 208.4 11.4 Mbps .008 .083 2.384 6 .307
00:06:30 167 35.2 39.62% 282.0 9.6 Mbps .008 .064 2.680 0  
00:06:40 176 33.8 47.19% 326.5 8.8 Mbps .009 .056 1.819 0  
00:06:50 181 36.2 44.48% 327.2 9.1 Mbps .013 .067 1.982 7 .107
00:07:00 190 26.7 .00% 83.7 14.0 Mbps .064 2.466 5.693 74 1.878
00:07:10 200 21.9 .00% 50.5 20.0 Mbps .017 1.833 8.003 11 1.471
00:07:20 200 32.1 .00% 80.6 21.5 Mbps .009 .270 8.054 4 .265
00:07:30 200 48.7 .00% 201.4 16.4 Mbps .009 .451 2.886 83 .892
00:07:40 200 41.5 .00% 155.8 19.0 Mbps .010 1.200 10.772 22 .852
00:07:50 200 28.1 .00% 65.5 21.3 Mbps .009 .465 9.175 3 .092
00:08:00 200 40.2 .00% 133.8 20.8 Mbps .009 .162 1.878 13 .202
00:08:10 200 45.3 .00% 180.4 17.3 Mbps .009 .577 3.708 41 .489
00:08:20 209 42.3 1.41% 143.0 22.2 Mbps .010 .508 4.997 6 .690
00:08:30 220 34.0 .00% 102.4 21.8 Mbps .009 .235 2.089 20 .380
00:08:40 228 49.1 .00% 178.5 22.3 Mbps .008 .303 4.415 12 .441
00:08:50 235 42.4 .00% 155.3 20.1 Mbps .011 .933 3.380 50 .939
00:09:00 242 44.3 .00% 150.5 22.9 Mbps .009 .771 3.778 43 .649
00:09:10 250 42.6 .00% 141.1 23.2 Mbps .009 .726 6.395 33 .410
00:09:20 250 43.7 .00% 151.8 22.7 Mbps .013 1.159 4.850 36 .762
00:09:30 250 39.5 5.28% 144.3 18.5 Mbps .010 1.213 3.547 92 1.021
00:09:40 250 48.8 18.53% 252.9 20.2 Mbps .008 .720 7.444 5 .476
00:09:50 250 49.7 35.37% 354.7 16.7 Mbps .009 .172 2.655 11 .435
00:10:00 250 51.0 47.30% 419.9 12.9 Mbps .009 .145 2.997 4 .046
00:10:10 250 23.8 91.63% 177.2 6.1 Mbps .010 .193 1.608 24 .570
00:10:20 254 33.2 83.63% 103.2 15.4 Mbps .106 1.235 5.909 58 .700
00:10:30 266 30.4 70.26% 65.0 23.3 Mbps .032 .963 4.647 2 .058
00:10:40 269 41.9 42.60% 114.2 24.8 Mbps .008 .471 3.329 30 .731
00:10:50 277 48.5 47.87% 162.3 18.4 Mbps .009 1.045 6.229 66 .480
00:11:00 289 38.4 60.53% 124.3 16.5 Mbps .515 2.050 5.771 101 1.577
00:11:10 300 38.1 55.09% 107.7 19.8 Mbps .312 2.241 8.247 80 1.359
00:11:20 300 38.8 33.13% 103.4 24.0 Mbps .571 2.423 5.518 57 1.277
00:11:30 300 48.0 27.86% 153.7 25.0 Mbps .033 1.228 5.084 55 .745
00:11:40 300 42.0 27.06% 136.1 21.1 Mbps .010 2.737 7.032 34 1.153
00:11:50 300 44.0 9.79% 180.2 17.6 Mbps .012 1.524 5.585 143 1.818
00:12:00 300 41.5 .72% 147.8 22.4 Mbps .609 3.139 6.152 73 1.412
00:12:10 233 40.2 .00% 105.8 23.8 Mbps .035 2.353 6.391 19 1.467
00:12:20 158 34.0 .00% 87.0 19.6 Mbps .009 .292 7.880 4 1.021
00:12:30 66 27.5 .00% 80.3 11.1 Mbps .009 .134 4.501 2 .045
00:12:40 5 12.3 .00% 43.7 2.3 Mbps .009 .068 .450 0  
00:12:50 0 .5 .00% 1.5 20.4 kbps .009 .009 .010 0  
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Report generated by Web Performance Load Tester version 1.0.0