BACKGROUND OF THE INVENTION Various storage protocols for communicating with storage devices are known in the art. One example storage protocol is the Serial Advanced Technology Attachment (SATA) protocol. A protocol called Advanced Host Controller I…
BACKGROUND Many computing systems include a network interface card (NIC) to provide for communications with other systems and devices over a network. In a computing system running multiple operating systems (OSs) on multiple virtual machines, each OS…
BACKGROUND Generally, the concept of virtualization in information processing systems allows multiple instances of one or more operating systems (each, an "OS") to run on a single information processing system, even though each OS is designed to…
Fast UI Draw in a library that provides a higher performance Canvas interface. It is designed so that it always draws using a GPU. In contrast to many common implementations of Canvas drawing, Fast UI Draw has that changes in clipping are very cheap…
Administrating Virtual Machines with QEMU Monitor When QEMU is running, a monitor console is provided for performing interaction with the user. Using the commands available in the monitor console, it is possible to inspect the running operating syste…
3.查看库表的最后mysql修改时间, 如果第一次新建的表可能还没有update_time,所以这里用了ifnull,当update_time为null时用create_time替代 select TABLE_SCHEMA, TABLE_NAME,ifnull(update_time , create_time) from information_schema.TABLES where TABLE_SCHEMA='table_name' order by ifnull(update_time ,…
