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                合規國際互聯網加速 OSASE為企業客戶提供高速穩定SD-WAN國際加速解決方案。 廣告
                ``` sync echo 1 > /proc/sys/vm/drop_caches echo 2 > /proc/sys/vm/drop_caches echo 3 > /proc/sys/vm/drop_caches ``` * sync:將所有未寫的系統緩沖區寫到磁盤中,包含已修改的i-node、已延遲的塊I/O和讀寫映射文件 * echo 1 > /proc/sys/vm/drop_caches:清除page cache * echo 2 > /proc/sys/vm/drop_caches:清除回收slab分配器中的對象(包括目錄項緩存和inode緩存)。slab分配器是內核中管理內存的一種機制,其中很多緩存數據實現都是用的pagecache。 * echo 3 > /proc/sys/vm/drop_caches:清除pagecache和slab分配器中的緩存對象。/proc/sys/vm/drop_caches的值,默認為0
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                              哎呀哎呀视频在线观看