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Diffstat (limited to 'TAO/tests/Stack_Recursion/README')
| -rw-r--r-- | TAO/tests/Stack_Recursion/README | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/TAO/tests/Stack_Recursion/README b/TAO/tests/Stack_Recursion/README index cc202fc7c40..419e6cf040f 100644 --- a/TAO/tests/Stack_Recursion/README +++ b/TAO/tests/Stack_Recursion/README @@ -2,6 +2,44 @@ @page Stack_Recursion Test README File + +Begin Comment added August 14, 2007 <wilsond@ociweb.com> +The original README starts below. + +The name of this test is misleading. See the bugzilla entry below for a +historical justification of the name. + +It is a test of the throughput for replies to a clients CORBA requests. + +The client starts 8 tasks (aka threads.) Each task calls the ping method +100 times. Ping is a nop method on the server. Presumably sending these +pings opens one or more connections to the server. The actual number of +connections varies from test run to test run. + +After that the client calls the get_data method 1000 times. Each call +returns a sequence of octets containing 1048576 bytes (1Mb). The test +succeeds if these replys are received by the client in 960 seconds +(16 minutes). + +A successful test executes 8800 CORBA calls in 16 minutes (550 calls a +minute = 9+ calls/second) and returns 8000 megabytes (500 megabytes/minute += 8.3 megabytes/second) via a local host connection. + +A typical failure for this test is a client timeout at the end of 16 minutes. +This can happen if the test system is too slow or heavily loaded to handle +this much data (including the necessary mallocs & frees (16M per call), or +if there is a significant bottleneck or hang in the ORB. Because the test +is sensitive to other loads on the test system, the results will be intermittent. + +8 tasks is hardcoded in client.cpp +100 pings is hardcoded in Client_Task.cpp +1000 calls to get_data is hardcoded in client.cpp +1Mb per get_data call is hardcoded in client.cpp. +960 seconds is hard coded in run_test.pl + +End Comment added August 14, 2007 <wilsond@ociweb.com> + + A stress test for the stack recursion outlined in the bugzilla under id 1125. Here is the link for the bug |