Mechanism for multi-threaded throughput performance testing.
Declared in <bslmt_throughputbenchmark.h>
class ThroughputBenchmark;This class is a mechanism that provides performance testing for multi- threaded components. It allows running different thread functions at the same time, and simulates a work load between subsequent calls to the tested thread functions. The results are loaded into a bslmt::ThroughputBenchmarkResult object, which provides access to counts of the work done by each thread, thread group, and sample, divided by the number of actual seconds of execution.
| Name | Description |
|---|---|
ThreadGroup | Data used by a thread group |
| Name | Description |
|---|---|
CleanupSampleFunction | Alias for a functor that cleans up after a sample has finished. |
CleanupThreadFunction | An alias to a function meeting the following contract: ` /// Clean up after each thread in a sample run. void cleanupThread(); ` |
InitializeSampleFunction | Alias for a functor that initializes a sample before threads start. |
InitializeThreadFunction | An alias to a function meeting the following contract: ` /// Initialize each thread in a sample run. void initializeThread(); ` |
RunFunction | Alias for the per-thread function executed during a benchmark sample. |
ShutdownSampleFunction | Alias for a functor that shuts down a sample before threads are joined. |
| Name | Description |
|---|---|
ThroughputBenchmark [constructor] | Create an empty ThroughputBenchmark object. |
addThreadGroup | addThreadGroup overloads |
allocator | Return the allocator used by this object. |
execute | execute overloads |
numThreadGroups | Return the number of thread groups. |
numThreads | Return the total number of threads. |
numThreadsInGroup | Return the number of threads in the specified threadGroupIndex. The behavior is undefined unless 0 <= threadGroupIndex < numThreadGroups(). |
operator BloombergLP::bslmf::NestedTraitDeclaration<ThroughputBenchmark, UsesBslmaAllocator> | Declare that this type uses a bslma allocator. |
| Name | Description |
|---|---|
antiOptimization | Return the value calculated by busyWork. |
busyWork | Perform arithmetic operations to consume an amount of time in linear relation to the specified busyWorkAmount. |
estimateBusyWorkAmount | Return an estimate of the work amount so that busyWork invoked with the returned work amount executes, approximately, for the specified duration. |
| Name | Description |
|---|---|
BloombergLP::bslmt::ThroughputBenchmark_TestUtil | This class implements a test utility that gives the test driver access to the unexposed data members of ThroughputBenchmark. |
BloombergLP::bslmt::ThroughputBenchmark_WorkFunction | This class is the work function functor, being called for each work thread. |