Question
When to Use the Shared Server
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You will not find a great deal of hard advice in the Oracle documentation on when to use shared server, or how many dispatchers and shared servers you’ll need. The main point to hang on to is that shared server is a facility you use because there is a need for it. It increases scalability when there are hundreds or thousands of concurrent users, at the cost of increasing the number of CPU cycles needed for any one statement execution, because it has to go via queues. But overall, the scalability of your system will increase dramatically because the efficiency of the operating system will be greatly improved. You will be able to put many more requests per second through the instance, because the operating system will not have to spend such a large proportion of CPU time on context switches.   Your Comment




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