Re: LRU and full table scans
От | Bruce Momjian |
---|---|
Тема | Re: LRU and full table scans |
Дата | |
Msg-id | 200203131827.g2DIRXi22518@candle.pha.pa.us обсуждение исходный текст |
Ответ на | Re: LRU and full table scans ("Roque Bonilla" <roque.bonilla@wanadoo.es>) |
Список | pgsql-hackers |
Roque Bonilla wrote: > First Hello, Second...Yes, I'm doing some studies on the buffer manager and > also studying and implementing different policys, one of them is the LRU-K. > > By the time I don't have any results, I'm just preparing to run the TPC-H > benchmark to test all the policys that I have implemented. > I have implemented some policys for the buffer manager, some better and some > worst than LRU (FIFO, LFU, LRD, FBR, LRU-K, LRFU, 4 CLOCK policys (or second > chance), CORRELATED REFERENCES, and different combinations of them like > (LFU+CLOCK+AGING(by division or by substraction)+CORRELATED REFERENCES)), > there are seven principal policys and seven "add-on's" that could be applyed > to them, resulting in 25 combinations of policys. We do have someone working on LRU-K but we haven't seen any test results from him yet. Please let us know what you find. -- Bruce Momjian | http://candle.pha.pa.us pgman@candle.pha.pa.us | (610) 853-3000+ If your life is a hard drive, | 830 Blythe Avenue + Christ can be your backup. | Drexel Hill, Pennsylvania19026
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