| H. Pang, "Query Processing in Firm Real-Time Database Systems", Ph.D. Thesis, Computer Sciences Department, University of Wisconsin, Madison, 1994. |
....policy, described in Section 2.3.1, discriminates against long transactions in that they form a disproportionately large fraction of the transactions with missed deadlines. To solve this problem, a dynamic priority assignment scheme called Adaptive Earliest Virtual Deadline was described in [71] this scheme ensures fairness by assigning a sequence of virtual deadlines to transactions, with the relative distances between virtual deadlines being tuned to match the estimated length of the transaction longer transactions have more frequent virtual deadlines. There has also been ....
....of whether it is possible to dynamically provide fairness while guaranteeing Orange Security (i.e. covert channel bandwidth of less than one bit per second) 8. 2 The GUARD Admission Control Policy Admission control has been used earlier for improving the performance in firm deadline RTDBS [71, 38]. However, we are not aware of any prior research work that suggests its use as a fairness mechanism in the secure transaction processing domain. In this section, we present GUARD, an adaptive admission control protocol that attempts to provide such fairness while guaranteeing orange security. ....
H. Pang, "Query Processing in Firm Real-Time Database Systems", Ph.D. Thesis, Computer Sciences Department, University of Wisconsin, Madison, 1994.
....behave as if it were a real time DBMS, where each individual transaction of a class has a performance goal, as opposed to having a longer term goal for a class of transactions. Mechanisms very different from the ones presented in this thesis are required for real time database systems [Abbott 91, Pang 94b] Perhaps the 9 key difference between goal oriented and real time systems is that goal oriented systems have an observation interval greater than one transaction;this allows goal oriented systems to violate goals on individual transactions and still meet their performance targets because they ....
H. Pang, Query Processing in Firm Real-Time Database Systems, PhD Thesis, University of Wisconsin, Madison, 1994.
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