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57results about How to "Shorten pause time" patented technology

Virtual machine snapshot generation method and apparatus

Embodiments of the invention disclose a virtual machine snapshot generation method and apparatus. The method provided by the embodiment of the invention comprises: according to a received snapshot command, pausing a virtual machine at a first moment, and starting to perform storage operation of a memory page in a memory of the virtual machine and pollution interception operation of the memory page in the memory; storing a device state of the virtual machine at the first moment to a snapshot file; and after the device state is stored, recovering a pausing state of the virtual machine to a running state. The process of performing the pollution interception operation of the memory page comprises: at the time between the first moment and the moment of storing the content of the memory page to the snapshot file of the virtual machine, intercepting a pollution action influencing the content of the memory page, storing the content of the memory page to a temporary cache, and cancelling the interception of the pollution action. The process of performing the storage operation of the memory page in the memory of the virtual machine comprises: storing the content of the memory page stored in the temporary cache into the snapshot file of the virtual machine.
Owner:HUAWEI TECH CO LTD

State information synchronization method, state information synchronization device and state information synchronization system for virtual machine

The invention discloses a state information synchronization method of a virtual machine. The method is applied to a tolerant system of the virtual machine. The fault tolerant system of the virtual machine comprises a source host and a destination host, wherein a main virtual machine operates on the source host, and a standby virtual machine operates on the destination host. When the source host synchronizes state information of the main virtual machine to the destination host, The method comprises the following steps: pausing the main virtual machine, and storing the state information of the main virtual machine into a storage unit of the source host; starting to operate the main virtual machine which is in a pause state; when the main virtual machine is in an operation state, acquiring the state information of the main virtual machine from the storage unit, and sending the state information of the main virtual machine to the destination host so as to enable the destination host to update the state of the standby virtual machine according to the state information of the main virtual machine. The state information synchronization method for the virtual machine, provided by the embodiment of the invention, can be used for effectively shortening the pause time of the main virtual machine and thus improving the calculation performance of the main virtual machine.
Owner:浙江杭海新城控股集团有限公司

Material shipping equipment and control method thereof

The invention discloses material shipping equipment and a control method thereof. The material shipping equipment comprises a feeder, a belt conveyor, a ship loader and a control device, wherein a discharge port of the feeder is connected with the belt conveyor for transporting the material to the belt conveyor; the belt conveyor is connected to the ship loader for transporting the material to theship loader; and the control device is arranged on the ship loader and in signal connection with the feeder and the belt conveyor; the starting and stopping of the feeder and the running speed of thebelt conveyor are confirmed accoding to the first time of the current material blanking from the feeder and required to being transportated to the ship loader by the belt conveyor, the second time that the feeder begins discharging and the belt conveyor begins rotating until the material is transportated to the current position and the third time required for the ship loader to change a bin. Thematerial shipping equipment and the control method thereof provided by the invention consider the time taken by the ship loader to move the bin and the conveyor time of the belt conveyor to control the feeder and the belt conveyor comprehensively, can make the feeder feed in advance, so the pause time of the feeder and the belt conveyor is shortened effectively, and the production effectiveness isimproved.
Owner:CHINA SHENHUA ENERGY CO LTD +1

Purlin molding machine and punching device thereof

InactiveCN102615171AIncrease the number ofReduce the number of punchingPurlinPunching
The invention provides a punching device. The punching device comprises at least four groups of punching modules. Each group of punching module comprises a frame, a punching oil cylinder which is arranged on the top of the frame, an upper punching die which is arranged at one end of a plunger of the punching oil cylinder, a pressing plate, and a lower punching die which is arranged at one end of a punching head of the upper punching die, wherein a travel switch which is used for controlling the opening and closing of the punching oil cylinder is arranged on the punching oil cylinder; the bottom of the upper punching die is provided with the punching head which extends from the top of the upper punching die to the bottom of the upper punching die; the pressing plate is arranged between the plunger and the upper punching die and is connected with the plunger and the upper punching die; and a punching hole which is matched with the punching head is formed in the lower punching die, and the distance between the upper punching die and the lower punching die is more than or equal to the thicknesses of purlins which are required to be punched. The quantity of the punching oil cylinders is increased, namely the quantity of punched holes in every punching process is increased, and then the total punching times of the purlins are reduced, so the pause time caused by punching is shortened; and therefore, the production efficiency of the purlins is improved. The invention also provides a purlin molding machine.
Owner:ATEC ENERGY&ENVIRONMENT CO LTD

Shoe upper head position control structure in upper grabbing process, and upper grabbing method

The invention provides a shoe upper head position control structure in an upper grabbing process, and an upper grabbing method, and belongs to the technical field of shoes. The problem of insufficient production efficiency in the existing process for tensioning an upper grabbing line by an upper-grabbing line pulling device is solved. The shoe upper head position control structure in the upper grabbing process comprises a bracket and a positioning piece; a positioning hole is formed in a shoe tree; when the positioning piece is inserted into the positioning hole, the positioning piece can limit the movement stroke of the shoe upper head from the head of the shoe tree to the heel part; the positioning piece is connected with a pull rope; and a driving piece capable of pulling the pull rope to enable the positioning piece to do lifting motion is arranged on the bracket. In the process of performing upper grabbing operation by the upper-grabbing line pulling device and the shoe upper head position control structure, the shoe upper adjusting amplitude and the time required by adjustment are obviously reduced, so that the force application pausing time of the upper-grabbing line pulling device is obviously reduced, even the upper-grabbing line pulling device can continuously output the action force, the reality required by completion of the upper grabbing process is obviously reduced, and the production efficiency of the upper grabbing process is obviously improved.
Owner:TAIZHOU CHUANGXIAN ELECTRONICS TECH CO LTD

Cross-OpenStack virtual machine migration method, device and medium

The invention discloses a Cross-OpenStackCluster virtual machine migration method, a device and a computer readable storage medium. The method comprises the steps of when a migration task is created,creating a cloud disk with the same disk parameters as a source virtual machine, wherein the cloud disk is mounted in an agent virtual machine created in a target OpenStack cluster in advance; readingdisk backup data of the source virtual machine by utilizing the proxy virtual machine and writing the disk backup data into the cloud disk. in the process that the source virtual machine refreshes the cache data to the disk and creates the cache backup data, writing each read cache backup data into the cloud disk by utilizing the proxy virtual machine until the occupied space capacity value of the current cache backup data is smaller than a preset threshold value; The cloud disk is unloaded in the pause state of the source virtual machine, and the unloaded cloud disk is used for creating thetarget virtual machine with the same configuration and network address as the source virtual machine, so that online and automatic migration of the virtual machine across the OpenStack cluster is realized, the pause time of the virtual machine service is reduced to the greatest extent, and the continuity of the virtual machine service is effectively guaranteed.
Owner:北京浪潮数据技术有限公司

Method, device and system for whole system online migration of virtual machine

The embodiment of the invention discloses a virtual machine total-system online migration method, device and system. The virtual machine total-system online migration method includes the steps of pre-migrating external storage data of a virtual machine to an objective physical host computer, judging the relationship between newly-generated increment external storage data and internal storage data occupied by the virtual machine, if the difference obtained by subtracting the internal storage data from the increment external storage data exceeds an external storage pre-migration threshold value, transmitting the increment external storage data to the objective physical host computer until the difference obtained by subtracting the internal storage data from the increment external storage data is smaller than or equal to the external storage pre-migration threshold value, pre-migrating the internal storage data and the increment external storage data to the objective physical host computer, circularly pre-migrating the increment external storage data and increment internal storage data to the objective physical host computer until the increment internal storage data are smaller than an internal storage pre-migration threshold value, suspending the virtual machine, migrating all residual data to the objective physical host computer, and re-operating the virtual machine on the objective physical host computer. According to the virtual machine total-system online migration method, device and system, the suspending time of the virtual machine is remarkably shortened.
Owner:CHINA TELECOM CORP LTD

A wire bonding fixture

The invention discloses a wire bonding clamp which comprises a fixed shaft, a gear box, a pinion, a bull wheel, a small shaft and a big shaft, wherein one end of the fixed shaft is connected with an equipment working platform, the other end of the fixed shaft is connected with the gear box, the bull wheel is meshed with the pinion, the small shaft and the big shaft are respectively center shafts of the pinion and the bull wheel, the bull wheel and the pinion are embedded inside the gear box, the end face of the bull wheel is provided with a bull wheel lug boss, and the end face of the bull wheel lug boss is provided with uniformly-distributed through holes for fixing a device to be clamped. The bull wheel is driven to rotate through rotation of the pinion, and the bull wheel drives the device fixed on the bull wheel to rotate simultaneously so that the device is switched into the next working face. The invention realizes continuous switching of a plurality of side surfaces in a three-dimensional space of the device, and avoids multiple times of installation of the device, thus suspend time of the wire bonding clamp is greatly saved and production efficiency is increased. The clamp is convenient and simple in operation; and processing precision is increased, and better welding quality is ensured.
Owner:BEIJING MXTRONICS CORP +1
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