摘要：
通过修改proc系统的drop_caches清理free的cache$echo 3 > /proc/sys/vm/drop_cachesdrop_caches的详细文档如下：Writing to this will cause the kernel to drop clean caches, dentries and inodes from memory, causing that memory to become free.To free pagecache:* echo 1 > /proc/sys/vm/drop_cachesTo free dentries and inode 阅读全文