Patent application number | Description | Published |
20130097357 | METHOD FOR IDENTIFYING MEMORY OF VIRTUAL MACHINE AND COMPUTER SYSTEM THEREOF - A method for identifying memories of virtual machines is provided. The method is adapted to a computer system executing at least one virtual machine, and an operating system is executed on the virtual machine. The method includes the following steps. A kernel file of the operating system is obtained, and the kernel file includes version information of the operation system. A source code and a configuration file of the operating system are obtained according to the version information, and the versions of the source code and the configuration file are complied with the version of the operating system. An object file is generated by compiling a fixed interface function with the source code according to the configuration file. Memory pages of the virtual machine are identified according to the object file. Furthermore, a computer system using the foregoing method is also provided. | 04-18-2013 |
20130097358 | METHOD FOR SHARING MEMORY OF VIRTUAL MACHINE AND COMPUTER SYSTEM USING THE SAME - A method for sharing memories of virtual machines is provided. The method is applied for a computer system configured to execute at least one virtual machine. The method includes the following steps. A memory map corresponding to the virtual machines is obtained, wherein usage states of memory pages of the virtual machine are stored in the corresponding memory map. Unused memory pages of the virtual machines are marked as free pages according to the corresponding memory map. The free pages of the virtual machines are shared. Therefore, the unused memory pages in the virtual machine can be shared. A computer system using the foregoing method is also provided. | 04-18-2013 |
20140108700 | METHOD AND COMPUTER SYSTEM FOR MEMORY MANAGEMENT ON VIRTUAL MACHINE - A method and a computer system for memory management on a virtual machine system are provided. The memory management method includes the following steps. A least recently used (LRU) list is maintained by at least one processor according to a last access time, wherein the LRU list includes a plurality of memory pages. A first portion of the memory pages are stored in a virtual memory, a second portion of the memory pages are stored in a zram driver, and a third portion of the memory pages are stored in at least one swap disk. A space in the zram driver is set by the at least one processor. The space in the zram driver is adjusted by the processor according to a plurality of access probabilities of the memory pages in the zram driver, an overhead of a pseudo page fault, and an overhead of a true page fault. | 04-17-2014 |
20140108764 | METHOD AND COMPUTER SYSTEM FOR MEMORY MANAGEMENT ON VIRTUAL MACHINE - A memory management method for a virtual machine system is provided. First, a first threshold value is set by a processor. A balloon target is then set to an allocated virtual memory size and decremented by a first decrement value stepwise by the processor according to a swapin/refault detecting result in a first adjustment state. The swapin/refault detecting result is generated by detecting at least one swapin or refault events by the processor. The balloon target stops being decremented by the processor according to the swapin/refault detecting result in a cool-down state. The balloon target is decremented by a second decrement value stepwise by the processor in a second adjustment state which is after the cool-down state. The second decrement value is less than the first decrement value, and the balloon target is not less than the first threshold value. | 04-17-2014 |
20140108765 | METHOD AND COMPUTER SYSTEM FOR MEMORY MANAGEMENT ON VIRTUAL MACHINE SYSTEM - A method and a computer system for memory management on a virtual machine system are provided. The memory management method includes the following steps. First, a working set size of each of a plurality of virtual machines on the virtual machine system is obtained by at least one processor, wherein the working set size is an amount of memory required to run applications on each of the virtual machines. Then, an amount of storage memory is allocated to each of the virtual machines by the at least one processor according to the working set size of each of the virtual machines and at least one swapin or refault event, wherein the storage memory is a part of memory available from the computer system. | 04-17-2014 |