block paging

基本解釋

In a virtual storage system, a fixed-length block of contiguous virtual addresses copied as a unit from memory to disk and back during paging operations.
在虛擬存儲(chǔ)系統(tǒng)中，一個(gè)固定長(zhǎng)度的連續(xù)虛擬地址塊，在分頁(yè)操作過(guò)程中它作為一個(gè)單位在內(nèi)存和磁盤(pán)之間來(lái)回復(fù)制。
Paging a memory block out and back in from disk is significantly slower than accessing it directly from RAM, so you should generally avoid this practice.
與直接訪問(wèn) RAM 中的內(nèi)存塊相比，把內(nèi)存塊交換到磁盤(pán)并交換回來(lái)要慢得多，所以一般情況下應(yīng)該避免這種做法。
Applications like Web catalogs, multi-page sales reports and others make extensive use of paging, fetching a new block of data for each new page displayed.
諸如 Web 目錄、多頁(yè)銷售報(bào)告之類的應(yīng)用程序都大量使用分頁(yè)，為顯示的每個(gè)新頁(yè)面抓取一塊新的數(shù)據(jù)。