44 results about "Sync" patented technology

A system and related techniques provide a seamless, peer-to-peer file synchronization capability for sharing files, folders, directories or other stored content between machines. According to embodiments of the invention in one regard, a sync engine or other file management logic may be integrated into the operating system or other resources of a user's desktop, laptop, network-enabled cellular device or other computer, client, machine or other hardware. The sync engine may accept user designations of files, folders, directories or other contents which they wish to share, sync or roam between two or more selected machines, on an automatically consistent basis. The sync engine or other control logic may maintain a file system log to record the state of files which have been designated for sharing, to indicate for example whether a transmission of the file has been made, to which target machine or machines it has been transmitted, and other variables regarding the state of file or other content. According to embodiments of the invention in one regard, the sync engine may apply version management logic when files located on a target or destination machine, may, for example, reflect newer or more complete content than the file which is designated for roaming to that machine, or other under conditions. A user may therefore readily and with a comparative minimum of configuration effort select and effectuate the sharing of a set of frequently used or otherwise desired files to an arbitrary set of machines which they own or use, without a need to invoke a remote server or other control or storage to back up and synchronize that content.

Systems, methods and computer program products for determining a schedule for synchronizing a server and a client are described herein. The method operates by tracking user usage of the client to develop usage patterns. A sync schedule is generated using the usage patterns, where the sync schedule enhances at least one of sync usefulness and sync transparency. The server and client are synchronized according to the sync schedule. More particularly, a sync fitness measure for an interval t is determined. The sync fitness measure is based on at least one of (a) sync transparency; and (b) sync usefulness. It is determined whether the sync fitness measure satisfies a threshold. If the sync fitness measure satisfies the threshold, then the server and client are synchronized during interval t.

An instruction set architecture (ISA) includes an asynchronous memory move (AMM) synchronization (SYNC) instruction. When processor of a data processing system executes the AMM SYNC instruction, the processor prevents an AMM operation generated by a subsequently received / executed AMM ST instruction from proceeding with the data move portion of the AMM operation within the memory subsystem until completion of all ongoing memory access operations within the memory subsystem and fabric. The AMM operation does not wait for a normal barrier operation. The processor forwards the information relevant to initiate the AMM operation to an asynchronous memory mover logic, and signals the logic to not proceed with the AMM operation until signaled of the completion of the AMM SYNC.

A method within a data processing system by which a processor executes an asynchronous memory move (AMM) store (ST) instruction to complete a corresponding AMM operation in parallel with an ongoing (not yet completed), previously issued barrier operation. The processor receives the AMM ST instruction after executing the barrier operation (or SYNC instruction) and before the completion of the barrier operation or SYNC on the system fabric. The processor continues executing the AMM ST instruction, which performs a move in virtual address space and then triggers the generation of the AMM operation. The AMM operation proceeds while the barrier operation continues, independent of the processor. The processor stops further execution of all other memory access requests, excluding AMM ST instructions that are received after the barrier operation, but before completion of the barrier operation.

A method within a data processing system by which a processor executes an asynchronous memory move (AMM) store (ST) instruction to complete a corresponding AMM operation in parallel with an ongoing (not yet completed), previously issued barrier operation. The processor receives the AMM ST instruction after executing the barrier operation (or SYNC instruction) and before the completion of the barrier operation or SYNC on the system fabric. The processor continues executing the AMM ST instruction, which performs a move in virtual address space and then triggers the generation of the AMM operation. The AMM operation proceeds while the barrier operation continues, independent of the processor. The processor stops further execution of all other memory access requests, excluding AMM ST instructions that are received after the barrier operation, but before completion of the barrier operation.

An instruction set architecture (ISA) includes an asynchronous memory move (AMM) synchronization (SYNC) instruction. When processor of a data processing system executes the AMM SYNC instruction, the processor prevents an AMM operation generated by a subsequently received / executed AMM ST instruction from proceeding with the data move portion of the AMM operation within the memory subsystem until completion of all ongoing memory access operations within the memory subsystem and fabric. The AMM operation does not wait for a normal barrier operation. The processor forwards the information relevant to initiate the AMM operation to an asynchronous memory mover logic, and signals the logic to not proceed with the AMM operation until signaled of the completion of the AMM SYNC.

A method, system and processing device for retiring data entries held within a store queue (STQ). The STQ of a processor cache is modified to receive and process several types of data entries including: non-synchronized (non-sync), thread of execution synchronized (thread-sync), and all thread of execution synchronized (all-thread-sync). The task of storing data entries, from the STQ out to memory or an input / output device, is modified to increase the effectiveness of the cache. The modified STQ allows non-sync, thread-sync, and all-thread-sync instructions to coexist in the STQ regardless of the thread of execution. Stored data entries, or stores are deterministically selected for retirement, according to the data entry type.

The invention provides a 4-kilobyte (4K)-sector-based hard disk drive performance optimization method. A format standard after optimization is characterized in that the byte quantity of a gap field Gap, a synchronization field Sync and an address mark field AddressMark are equal to the byte quantity of those in the conventional sector, and only the byte quantity of an error correction code (ECC) field is increased to 100 bytes, so that sector formatting efficiency reaches 97 percent which can be calculated by a formula 4,096 / (4,096+115) and is increased by 10 percent compared with that of the conventional sector; the formatting efficiency can gradually play a role in generating a new and advanced format standard which has high capacity and improves data integrity so that a 4K sector makes big progress; and in the 4K sector, the 4K sector is formed by merging eight conventional 512-byte sectors, and when the format of a system disk is converted into a fourth extended file system (ext4) format, system performance can be greatly improved by 90 to 120 percent.

Provided are techniques for determining which target is most ahead in a multi-target mirroring environment between data from a consistent synchronous mirror copy operation and data from a consistent asynchronous mirror copy operation. It is determined that data is to be retrieved from one of a sync secondary storage of a sync secondary storage controller and an async secondary storage of an async secondary storage controller. Then, it is determined which one of data of a consistent synchronous mirror copy operation on the sync secondary storage and data of a consistent asynchronous mirror copy operation on the async secondary storage is a most current copy of the data. The most current copy of the data is retrieved and used for further processing.

Implicit sync group selection is performed by having dual interfaces to a gateway. A subsystem coupled to the gateway selects a sync group to be used for an upcoming exchange by selecting the interface to which a sync request is written to. The gateway propagates the sync requests and / or acknowledgments in dependence upon configuration settings for the sync group that is associated with the interface to which the sync request was written to.

The present invention provides a data synchronization system and method for multiple data centers, including: a synchronization center module and multiple sub-synchronization modules; wherein, each sub-synchronization module is connected to multiple servers, and the synchronization center module is respectively connected to multiple sub-synchronization modules. The modules are connected; the sub-synchronization module is used to obtain the data to be synchronized sent by the target server, and synchronize the data to be synchronized to a server other than the target server connected to the sub-synchronization module; the target server is connected to the sub-synchronization module One of the servers in the server; the sub-synchronization module is also used to send the data to be synchronized to the synchronization center module; the synchronization center module is used to obtain the data to be synchronized and broadcast the data to be synchronized to the sub-synch that sends the data to be synchronized A child sync module outside of the module. The invention alleviates the technical problems of low synchronization efficiency of a single synchronization center module and prone to accidents existing in the prior art.

Various embodiments disclose a method for maintaining file versions in volatile memory. The method includes storing, in volatile memory for at least a first portion of a first sync interval, a first version of a file that is not modifiable during the at least the first portion of the first sync interval. The method also includes storing, in volatile memory for at least a second portion of the first sync interval, a second version of the file that is modifiable during the at least the second portion of the first sync interval. The method also includes subsequent to the first sync interval, replacing in nonvolatile memory, a third version of the file with the first version of the file stored in volatile memory. Further, the method includes marking the second version of the file as not modifiable during at least a first portion of a second sync interval.

Systems, components, devices, and methods for synchronizing files between a local file system and a server are provided. In the example, the synchronization of individual files is paused by placing the individual files on hold. One non-limiting example method accesses a file stored on a local file system for synchronization with an associated file on a server, and determines whether differences between the file and the associated file prevent synchronization. The method places the file on hold when it is determined that differences between the file and the associated file prevent synchronization. The hold state suspends the synchronization of the contents of the file with the contents of the associated file. In some examples, the method continues to synchronize topology changes and / or resumes synchronization for files that have been placed on hold after determining that the files are no longer different from the associated files.

The method comprises: 1) planning the downlink sync code; 2) planning the uplink code; 3) setting the testing threshold. With jointly planning the downlink and uplink sync code, the interference from neighboring cells is reduced in the process of searching and building downlink cell and randomly accessing uplink.

A work accelerator is connected to a gateway. The gateway enables the transfer of data to the work accelerator from an external storage at pre-compiled data synchronisation points attained by the work accelerator. The work accelerator is configured to send to a register of the gateway an indication of a sync group comprising the gateway. The work accelerator then sends to the gateway, a synchronisation request for a synchronisation to be performed at an upcoming pre-compiled data exchange synchronisation point. The sync propagation circuits are each configured to receive at least one synchronisation request and propagate or acknowledge the synchronisation request in dependence upon the indication of the sync group received from the work accelerator.

The invention relates to the technical field of databases, and provides a processing method, system and device for trigger incremental synchronization abnormality caused by source concurrency. The method includes acquiring the incremental data that has not yet been synchronized, and performing the first-stage synchronization of the corresponding incremental data on the incremental destination side; according to the CDC_ID value of the incremental data that has completed the first-stage synchronization of the incremental destination data, the continuous The CDC_ID values ​​of one or more incremental data are recorded in the form of intervals to obtain intervals; when cleaning incremental data, it is determined according to the interval value that the incremental data located in the interval value has completed the first stage Incremental data for sync operations and deletes it. After the incremental target table completes the synchronization operation, the invention can ensure the high-efficiency execution of the incremental synchronization process without relying on the continuous increment feature of the CDC_ID column value in the incremental target table and not marking the data in the incremental target table according to the interval after the incremental target table completes the synchronization operation, and No data loss will result.