Abstract:
The disclosure relates to technology for secure compute. One aspect includes a network device, comprising a non-transitory memory comprising instructions; and one or more processors in communication with the non-transitory memory storage. The one or more processors execute the instructions to receive and process routing requests in a network; send an indication into the network that the network device is able to perform secure computes; perform a secure compute based on an input received via the network from an input device; ensure that a result of the secure compute is trusted as a correct result of the secure compute; and provide the trusted result of the secure compute to a result device connected to the network.
Abstract:
A memory extensible chip (200) is provided. The chip (200) includes a substrate (240), and a processor (230), a first memory module set (210), and a second memory module set (220) that are integrated on the substrate (240). The processor (230) communicates with at least one memory module in the first memory module set (210) using a first communications interface (250), and the processor (230) communicates with at least one memory module in the second memory module set (220) using a second communications interface (260). A memory module in the first memory module set (210) communicates with a memory module in the second memory module set (220) using a substrate network, where the substrate network is a communications network located inside the substrate (240). In this way, the processor (230) can access a memory module in the first memory module set (210) by using the second memory module set (220).
Abstract:
A data processing method and apparatus are provided. A system includes a CPU pool and a storage pool, a mapper node and a reducer node respectively run on different CPUs in the CPU pool, and a remote storage area shared by the mapper node and the reducer node is delimited in the storage pool. In this method, the mapper node executes a map task, and stores a data segment obtained by executing the map task, into the remote storage area; and the reducer node directly obtains a data segment to be processed by the reducer node from the remote storage area, and executes a reduce task on the data segment. The method omits some actions in the prior art, and shortens a time for executing the Map/Reduce task.
Abstract:
A file access method, a system, and a host are provided. According to the method, after obtaining information about first virtual space of a target file, a host allocates, in local virtual address space of the host, second virtual space to the target file, where the first virtual space is space allocated in global virtual address space by a management node in a distributed storage system to the target file. The host converts, according to a correspondence between the first virtual space and the second virtual space, a second access request of accessing the second virtual space into a first access request, where an address of the first virtual space in the first access request includes device information of a first storage node. Then, the host sends the first access request to a network device to route the first access request to the first storage node.
Abstract:
A file access method and apparatus, and a storage system are provided. After receiving a file access request including a file identifier, first physical address space is accessed according to first virtual address space and a first mapping relationship between the first virtual address space and the first physical address space storing a file system. After obtaining, from the first physical address space, an index node of an object file indicated by the file identifier, a file page table is obtained according to information included in the index node, where the file page table records second physical address space of the object file. Then, second virtual address space is allocated to the object file. After establishing a second mapping relationship between the second physical address space and the second virtual address space, the object file in the second physical address space is accessed according to the second virtual address space.
Abstract:
A method for accessing a flash memory device and a flash memory device. After receiving a write request for an address, a flash memory controller obtains an indicator of the address, where the indicator indicates a last access type of the address, which might be a write operation or a read operation. When determining the indicator indicates a write operation, which means the access type for the address is normally write operation, to save time, the flash memory controller perform a fast-write operation on the address, when the indicator indicates a read operation, which means there might be plenty of read operations on the address, to facilitate future read operation, the controller performs a slow-write operation on the address.
Abstract:
A storage system includes a management node and a plurality of storage nodes forming a redundant array of independent disks (RAID). When the management node determines that not all data in an entire stripe is updated based on a received write request, the management node sends update data chunk obtained from to-be-written data to corresponding storage node.The storage node do not directly update, based on the received update data chunks, data block stored in storage device of the storage node, but store the update data chunk into non-volatile memories (NVM) cache of the storage node and send the update data chunk to another storage node to backup. According to the data updating method, write amplification problems caused in a stripe update process can be reduced, thereby improving update performance of the storage system.
Abstract:
A file access method and apparatus, and a storage system are provided. After receiving a file access request including a file identifier, first physical address space is accessed according to first virtual address space and a first mapping relationship between the first virtual address space and the first physical address space storing a file system. After obtaining, from the first physical address space, an index node of an object file indicated by the file identifier, a file page table is obtained according to information included in the index node, where the file page table records second physical address space of the object file. Then, second virtual address space is allocated to the object file. After establishing a second mapping relationship between the second physical address space and the second virtual address space, the object file in the second physical address space is accessed according to the second virtual address space.
Abstract:
A data storage method, a storage apparatus and a computing device are disclosed. The method includes receiving a presetting command sent by a CPU, where the presetting command instructs to write 1 to a location, which corresponds to a cache line, in memory; writing, according to the presetting command, 1 to the location, which corresponds to the cache line, in the memory; receiving a write command sent by the CPU of writing data in the cache line to the memory; and writing, according to the write command, data 0 in the cache line to a location, which corresponds to the data 0, in the memory.
Abstract:
A method and an apparatus for recommending a message. The method for recommending a message in the present disclosure includes separately parsing a first message published by a first user on a network and a second message published by a second user on the network, obtaining interest description information of the first message and topic description information of the second message, where the second user is another user except the first user, comparing the topic description information with the interest description information, and calculating a similarity of the topic description information and the interest description information; and if the similarity is greater than or equal to a predetermined value, pushing the second message published by the second user to the first user. A user can conveniently and flexibly obtain a message in which the user is interested in the embodiments of the present disclosure.