page buffer storage

基本解釋

If rows are accessed randomly, then the smaller page size enables DB2 to make better use of the buffer, because more pages fit into the same storage area.
如果隨機(jī)訪問(wèn)行，那么較小的頁(yè)大小讓 DB2 可以更好地利用緩沖區(qū)，因?yàn)橥瑯拥拇鎯?chǔ)區(qū)域可以容納更多頁(yè)。
However, if the total buffer size is too large, and there is not enough storage to allocate them, a minimum system buffer pool for each page size is allocated, and performance is sharply reduced.
但是，如果總的緩沖區(qū)大小太大，并且沒(méi)有足夠的存儲(chǔ)器可用來(lái)分配給它們，那么將為每種頁(yè)大小分配最少的緩沖池，性能就會(huì)急劇下降。