4 results about "Data descriptor" patented technology

Provided in the embodiments of the present disclosure are a data processing method, apparatus and system. The method is applied to a data transmission device, and comprises: in response to a data sending notification of a data processing device, acquiring a target data descriptor of target message data; when it is determined, on the basis of the target data descriptor, that the target message data requires order preservation, placing the target data descriptor in a target buffer area for ordering, so as to obtain an ordering result; and on the basis of the ordering result, acquiring the target message data from a target memory address corresponding to the target data descriptor. A message order-preserving mode is changed to reordering based on a target data descriptor, and the size of the target data descriptor is much smaller than the size of target message data, so that the usage requirements of hardware resources are effectively reduced while an order-preserving capability that accommodates a higher CPU processing latency is achieved, thereby ensuring message order-preserving and performance requirements under high-latency CPU processing.

A storage system includes a storage device including a nonvolatile memory device and a host device including a file system to generate and update a file system metadata to manage data stored in the nonvolatile memory device. The file system of the host device determines a relocation of a plurality of data blocks and transfers, to the storage device, a synchronous move request including a move data descriptor indicating information on a storage location of the plurality of data blocks and a metadata descriptor indicating information on a change in the file system metadata according to the relocation. The storage device performs a data move operation to change the storage location of the plurality of data blocks based on the move data descriptor, and a metadata update operation to write a new file system metadata according to the relocation in the nonvolatile memory device based on the metadata descriptor.