7 results about "File caching" patented technology

The present application relates to the field of cloud technology, and discloses a metadata access method and apparatus, a device, and a storage medium. According to the method, a global metadata cache scheme is used, and relates to a three-layer architecture, i.e., a global cache file, a cache description array, and a memory block; storage areas can be divided according to the data length of metadata in a shared memory; and when target metadata needs to be acquired for a target process, metadata can be queried layer by layer according to the three-layer architecture until target address information of target metadata that has been cached is obtained, and the target address information is returned to the target process for realizing the access of the target metadata. In this way, the metadata required by all the working processes can be accessed by means of the method, so that metadata caches of the working processes do not need to be respectively maintained by the working processes, thereby reducing the repeated metadata cache between the working processes, reducing the occupied memory resources, reducing the transmission resource occupation of the repeated metadata, and improving the resource utilization rate.

The application discloses a kind of unmanned vehicle dynamic distribution-oriented auxiliary V2V cache network optimization methods, comprising: step one designs multi-unmanned auxiliary layered cache strategy, the file in the library is arranged in descending order from high to low according to popularity, and is successively divided into core layer, supplementary layer and low-frequency layer, the core layer file cache mode is determined cache for each vehicle, the supplementary layer file cache mode is vehicle probability cache, and the low-frequency layer file is not cached by vehicle;When vehicle sends file request, establish own cache, V2V cache, obtain request file from cloud server through unmanned vehicle three-level response;Step two analyzes cache performance average service delay;Step three jointly optimizes cache strategy and unmanned vehicle deployment;The application forms local priority, cooperation second, and efficient file distribution system of cloud supplement, and optimizes unmanned vehicle quantity, and balance is obtained between cost and performance.

Systems and methods of persistent file protection integrate cloud-based backups with EDR file protection. Use of local persistent file cache (PFC) data with cloud-stored file segments, facilitates reconstruction of file states from multiple sources. File storage and retrieval efficiency are optimized, even when local session caches are invalidated or when extensive file modifications exceed storage quotas.

Embodiments of the present application provide a high-concurrency network file processing system, method, computer device and storage medium. The system comprises a DPDK data plane module configured to receive network data packets from a network card transceiver queue and store the network data packets in an MBUF memory pool; a coroutine scheduling module configured to preprocess the network data packets based on an event loop and generate corresponding files; a task dispatching module configured to add a file writing task to a task queue and assign the task to a target file cache shard according to system load conditions; a file cache module configured to receive and cache data segments of the writing task and reorder the data segments according to offset information; and an asynchronous I / O module configured to submit the reordered data to a storage device interface in an asynchronous manner. The introduction of the DPDK enables user mode direct access to the network card transceiver queue, avoids the overhead of system calls and kernel protocol stacks, and significantly improves network I / O performance.

This application provides a file caching method, apparatus, storage medium, and electronic device, relating to the server field. The file storage system is used for reading and writing files, and caching read files to a built-in cache space. The method includes: determining a cache quota configured by the file storage system for the cache space based on the amount of file data that the file storage system needs to read and write; parsing a received file read / write request to obtain the file attributes of the target file corresponding to the file read / write request, wherein the target file is a constant bitstream file; and determining a caching method for the target file based on the file attributes and the cache quota. This solves the problem in related technologies where, during the reading and writing of constant bitstream files, insufficient storage system performance leads to unstable read / write operations.

A method for booting a computing device includes, during a boot sequence, launching a prefetcher from an operating system (OS) image for an OS, reading, by the prefetcher, a prefetcher list that specifies a plurality of files to be prefetched, and reading the plurality of files specified by the prefetcher list to cause the plurality of files to be copied from a filesystem to a file cache to prefetch the plurality of files for a startup of a user space process of the OS.