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| Author: | Nelson, R. Towsley, D. |
| Title: | Approximating the mean time in system in a multiple-server queue that uses threshold scheduling. |
| Journal: | Operations Research
1987 : MAY-JUN, VOL. 35:3, p. 419-427 |
| Index terms: | QUEUING THEORY |
| Language: | eng |
| Abstract: | A multiple exponential server system with a single common queue is studied, where the servers have different service rates. It is assumed that jobs arrive to the queue according to a time-invariant Poisson process. Exact analysis for the mean response time in this situation appears to be complicated because the state space grows exponentially with the number of processors. A method is provided that reduces the state space and yields a simple numeric approximation very close to those obtained from simulation. The method can be applied in any such system that uses a threshold scheduling policy. |
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