36 results about "Virtual machine" patented technology

A recovery virtual machine acquires execution frequency information from a file, and converts a procedure, of which execution frequency is high in the execution frequency information acquired, to native code, and the time for starting the conversion is thereby reduced. Furthermore, by performing conversion at a timing at which a target procedure is invoked, load occurring due to the conversion is distributed, to prevent occurrence of failure in execution of an application caused by the load occurring due to the conversion.

In a computer system supporting execution of virtualization software and at least one instance of virtual system hardware, an interface is provided into the virtualization software to allow a program to directly define the access characteristics of its program data stored in physical memory. The technique includes providing data identifying memory pages and their access characteristics to the virtualization software which then derives the memory access characteristics from the specified data. Optionally, the program may also specify a pre-defined function to be performed upon the occurrence of a fault associated with access to an identified memory page. In this manner, programs operating both internal and external to the virtualization software can protect his memory pages, without intermediation by the operating system software.

The invention provides an OpenStack based software defined network simulation system. The system comprises a virtual machine creating module, a simulation network setting module and a test module, wherein the virtual machine creating module creates multiple virtual machines according to requirements, the simulation network setting module arranges at least one software defined network controller and at least one software defined network switch in the created virtual machines according to requirements so as to establish a corresponding network topology network, and the test module tests whether the arranged software defined network controller and software defined network switch satisfy requirements according to the established network topology structure. The system uses the test module to test whether the arranged software defined network controller and software defined network switch satisfy requirements, so that the needed controller and switch can be developed according to requirements, the setting flexibility of the software defined network is improved, and the design cost is reduced. The invention also provides a software defined network simulation method.

This invention discloses one data transparent protection safety write system and method, which comprises hardware platform, virtual monitor and at least one operation system, wherein, the platform comprises memory device composed of data preservation area to store each data protection point MBR and file align list and status list; the virtual monitor comprises data protection module to set protection points and to store the MBR and list and point status into the preservation area for change operation on the protection point; capture operation system and the program in it visit memory device I/O operation order and directing the orders into accurate position on the memory device.

Interpreted code modules configured to be executed within a virtual machine can be identified. Each of the interpreted code modules can be configured to interact with a native module such that dependency information for the native module can be programmatically utilized by each of the interpreted code modules. An abstraction module for the virtual machine written in the interpreted language can be established. The abstraction module can be configured to load an instance of the native module, wherein upon loading the instance of the native module the abstraction module is exposed to the dependency information associated with the instance of the native module. Each of the interpreted code modules can be configured to interact with the native mode module through the abstraction module. The abstraction module is configured to provide the dependency information associated with the instance of the native module to each of the interpreted code modules.

A system, method and computer program product for optimizing handling of guest code in a Virtual Machine include code for identifying, in the guest code, a predetermined pattern that includes privileged but unsafe instructions and an instruction that raises an exception; code for executing the guest code in a native mode; code for, upon encountering the instruction that raise the exception, transferring control to a Virtual Machine Monitor; code for emulating the pattern in the Virtual Machine Monitor; and code for rolling back the effects of privileged but unsafe instructions and any intervening instructions to ensure correct Virtual Machine Monitor context. The pattern can include, for example, a privileged but unsafe instruction, followed by safe instructions, followed by an exception raising instruction, followed by safe instructions, followed by a privileged but unsafe instruction. Optionally, the most frequently occurring patterns can be placed in a cache, for use by the Virtual Machine Monitor to verify their presence in the guest code.

Provided in embodiments of the present invention are a method for generating configuration information and a network control unit. The method comprises: the network control unit receiving a virtual machine association message comprising an identifier of a first virtual machine of which the state is changed and an identifier of a first virtual built-in network element which detects the state change of the first virtual machine; the network control unit determining first information according to the identifier of the first virtual machine, and the first information comprising at least one of the following information: a first forwarding entry, a first virtual machine position information mapping entry and a first network policy. In the embodiments of the present invention, the network control unit determines the first information according to the identifier, included in the virtual machine association message, of the first virtual machine of which the state is changed, so that manual determination is not needed, and thus the network configuration efficiency is improved and the performance of a network is enhanced.

A method and a system for problem determination and diagnosis in a shared dynamic cloud environment. The method includes monitoring each virtual machine and physical server in the shared dynamic cloud environment for at least one metric, identifying a symptom of a problem and generating an event based on said monitoring, analyzing the event to determine a deviation from normal behavior, and classifying the event as a cloud-based anomaly or an application fault based on existing knowledge.

The invention provides an encryption method, a decryption method, and a corresponding device and a system. The encryption method comprises: a encryption client sending a key application request message to a key management system so as to make the key management system generate an encryption key according to the key application request message; the encryption client receiving a key application response message sent by the key management system, the key application response message including the encryption key; and the encryption client encrypting a system volume of a virtual machine according to the encryption key.

The invention discloses a method, a device and a system for acquiring virtual machine terminal data. The method for acquiring the virtual machine terminal data comprises that: a cloud client terminal receives a virtual machine list sent by a cloud server; the cloud client terminal issues a terminal data interception command to any one or multiple virtual machines in the virtual machine list; and the cloud client terminal receives the terminal data returned by the cloud server, wherein the cloud server uses the terminal data interception command to acquire the terminal data on the virtual machines. With the method, an effect of a desktop video recording function on the virtual machines of the client terminal can be realized without installation of software.

The invention provides a container creation method and device, electronic equipment and a storage medium, and belongs to the technical field of containers. The method comprises the steps of obtaininga to-be-updated new agent file in response to a container creation instruction; and mounting the new agent file to a first virtual machine directory in a virtual machine, so as to enable the virtual machine to obtain the new agent file according to the first virtual machine directory and operate a container based on the new agent file. By the adoption of the technical scheme, the problem that whena new container is created based on an existing container mirror image file updating mode, the container in the running state cannot run normally can be solved.

The embodiment of the invention discloses a business processing method, comprising: obtaining the first reliability parameter of a node device; receiving the second reliability parameter and the third reliability parameter sent by the node device; calculating the reliability estimation value of the node device according to the first reliability parameter, the second reliability parameter and the third reliability parameter, wherein the reliability estimation value is used for determining the deploying position of an object business; deploying the object business on at least one node device according to the reliability estimation value so that at least one node device executes the object business. The embodiment of the invention also provides an arrangement device, the node device and a system. The embodiment of the invention can take more factors into consideration and is not limited to a traditional mode; the third reliability parameter is added to participate in reliability estimation of the node device, thus ensuring the accuracy of deploying the business on a virtual machine.

The invention provides a storage access method and device for a virtual machine, and the method comprises the steps: enabling a server to log in a storage service of a network disk distributed for thevirtual machine, obtaining an identifier of the network disk, and creating the virtual disk with the identifier of the network disk for the virtual machine based on the network disk. The virtual machine logs in the storage service of the network disk after starting the operation system based on the virtual disk; and then based on the identifier shared by the network disk and the virtual disk, determining that the storage access path of the virtual machine comprises the access path of the network disk and the access path of the virtual disk, the access path of the virtual disk being a main path, and the access path of the network disk being a standby path. And switching the access path of the network disk as a main path by the virtual machine after detecting that the server logs out of thestorage service of the network disk. Therefore, the virtual disk can be accessed only by occupying a small amount of server resources in the starting stage of the virtual machine, and the virtual machine directly accesses the network disk after the virtual machine is started.

The invention discloses a virtual machine migration method and a virtual machine migration system, relates to the field of cloud calculation and solves problems the an existing virtual machine resource scheduling mechanism is unable to satisfy variability of actual operation status of the system and low in efficiency. The method includes: determining virtual machine filling priority of host equipment in a cluster; migrating at least one virtual machine on the host equipment low in virtual machine filling priority to the host equipment with the load not up to the limit and high in the virtual machine filling priority. The virtual machine migration method and the virtual machine migration system are applicable to the large-scale virtual machine cluster, and dynamic adjustment of virtual machine resource scheduling is realized.

The invention relates to a cloud application-guided solid state disk cache management system and method. A core concept is characterized in that from the view of a cloud application, mapping relationship between virtual machines and a solid state disk is depicted by a multilayer network model; optimal solid state disk cache size obtained by each virtual machine is further determined. When the workload of the cloud application changes, the system can automatically trigger a regulation process to execute the dynamic migration and the cache capacity change of the virtual machines, so that the performance of the cloud application is improved, and the utilization rate of the solid state disk is improved.

An apparatus for monitoring file access in a virtual machine in a cloud-computing system based on a virtualized environment includes a hypervisor for implementing at least one virtual machine and managing the virtual machine by monitoring a task in which a the virtual machine accesses a file loaded from storage to memory, the storage storing data including environment information of the virtual machine.

The invention relates to a virtualized resource mirror image storage system and an implementation method thereof. The virtualized resource mirror image storage system comprises a FUSE file system and a mirror image repeated data deletion system. The FUSE file system receives R/W requests from a plurality of mirroring services and sends read-write information to the mirroring duplicated data deleting system for processing, and after processing is completed, the FUSE file system stores data into a disk or reads data from the disk. According to the system and the method, efficient storage of the virtual resource mirror image is realized, the management problem of unified storage of the virtual machine mirror image and the container mirror image is solved, and the problems of high storage pressure and the like caused by increasing mirror image data are relieved to a certain extent.

The present disclosure provides a server conversion method. The method comprises: determining a state of a computing server; and implementing conversion between the computing server and a bare metal server according to the state of the computing server, wherein the computing server comprises a mirror, a computing component and a virtual machine, the bare metal server comprises a mirror and a baremetal component, the mirror is a static and unmounted operating system, and the virtual machine is generated by the computing component and the mirror. At the same time, the present disclosure also provides a server conversion apparatus. According to the method and apparatus provided by the present disclosure, mutual conversion between a computing server and a bare metal server can be implemented,and the problem of non-uniform use between two clusters of a computing server and a bare metal server is solved, so that mutual conversion between the two clusters can be implemented, the resources can be reasonably used, and the balance of the two servers in use can be reached.

Techniques for reconfiguring a snapshot of a virtual machine (VM) may be provided. The VM may be deployed on a hypervisor running on a computer. Techniques comprise provisioning of a VM, installing and configuring an operating system and a base program. A snapshot of the virtual machine may be taken together with the operating system and the base program together with configuration data defining the configuration of the virtual machine, the operating system and base application in a metadata descriptor. All may be stored in a persistent storage. Then the content of the metadata descriptor may be modified, and it may be reverted back to the snapshot using the modified content of the metadata descriptor such that the snapshot of the virtual machine with the operating system and the base program is reconfigured upon deployment of the snapshot including the operating system and the base program.

The invention relates to a method and system for rendering fonts. The method comprises the steps of: analyzing an Svg document by an As3 script, finding out relative nodes of the fonts and extracting font information in the relative nodes; establishing a DefineFont3 node, a DefineFontName node and a DoAbc node including a font definition class on the basis of swf file format specifications according to the font information; establishing a relationship between the font definition class and the DefineFont3 node as well as a relationship between the front definition class and the DefineFontName node by a SymbolClass node, and establishing a swf font library on the basis of the relationships; loading the swf font library to the As3 script and sending the swf font library to a flash virtual machine for analysis, wherein the flash virtual machine generates embedded fonts; and appointing the embedded fonts and font names thereof by the As3 script. According to the method and system for rendering the fonts, distortionless rendering of the svg fonts is realized by the flash virtual machine under a flash platform, so that the application of the fonts is realized on the virtual machine level; the application of the corresponding fonts can be realized by using less codes by the As3 script; and therefore, compared with the conventional method for drawing the As3 scrip, the method for rendering the fonts, disclosed by the invention, has higher performance.

The invention provides a cluster capacity management method and system. The cluster capacity management method comprises the steps: acquiring a pod scheduling state of a kubernetes cluster; determining a preset high-consumption resource pod, and pressurizing the kubernetes cluster on the basis of the preset high-consumption resource pod; if it is judged that a plurality of pending pods exist in the first preset period range, obtaining a new virtual machine node from a node resource pool; and loading the plurality of pending pods to the new virtual machine node until the kubernetes cluster does not have the pending pods within the preset operation time. According to the method, dynamic capacity expansion and capacity shrinkage are realized through the cluster nodes, the service tide phenomenon is effectively dealt with, and the node resource occupation state of the cluster is accurately identified according to the state and the number of the pending pods.

The embodiment of the invention provides a virtual machine communication method and device based on a shared memory, and the method comprises the steps that a switch receives a reading request sent bya first virtual machine, the reading request comprises a first local address, and the switch converts the first local address into a first global address according to the mapping relation between thefirst local address and the first global address, wherein the first global address is an address determined according to a first shared memory, and the first shared memory is a part of the memory ofthe switch; the switch converts the first global address into a first physical address according to the mapping relation between the first global address and the first physical address, and the firstphysical address is the physical address of the first shared memory; the switch reads data from the first shared memory according to the first physical address, and the data is written into the firstshared memory by the second virtual machine; and the switch sends the data to the first virtual machine. According to the embodiment, the time delay of reading and writing data from the shared memoryby the virtual machine can be reduced, and the data transmission efficiency is improved.