| Threadpool MPM: | |
| This is an experimental variant of the standard worker MPM. | |
| Rather than queuing connections like the worker MPM, the threadpool | |
| MPM queues idle worker threads and hands each accepted connection | |
| to the next available worker. | |
| The threadpool MPM can't match the performance of the worker MPM | |
| in benchmark testing. As of 2.0.39, some of the key load-throtting | |
| concepts from the threadpool MPM have been incorporated into the | |
| worker MPM. The threadpool code is useful primarily as a research | |
| platform; for general-purpose use, and for any production environments, | |
| use worker instead. |