A memory device includes a communication circuit configured to communicate a first signal and a second signal; and a selection mechanism coupled to the communication circuit and configured to select between operating the communication circuit the first signal and the second signal (1) independent signals for separate memory operations or (2) a complementary set for a memory operation.

A memory device includes a communication circuit configured to communicate a first signal and a second signal; and a selection mechanism coupled to the communication circuit and configured to select between operating the communication circuit the first signal and the second signal (1) independent signals for separate memory operations or (2) a complementary set for a memory operation.

A method for fetching a content from a web server to a client device is disclosed, using tunnel devices serving as intermediate devices. The tunnel device is selected based on an attribute, such as IP Geolocation. A tunnel bank server stores a list of available tunnels that may be used, associated with values of various attribute types. The tunnel devices initiate communication with the tunnel bank server, and stays connected to it, for allowing a communication session initiated by the tunnel bank server. Upon receiving a request from a client to a content and for specific attribute types and values, a tunnel is selected by the tunnel bank server, and is used as a tunnel for retrieving the required content from the web server, using standard protocol such as SOCKS, WebSocket or HTTP Proxy. The client only communicates with a super proxy server that manages the content fetching scheme.

A method for fetching a content from a web server to a client device is disclosed, using tunnel devices serving as intermediate devices. The tunnel device is selected based on an attribute, such as IP Geolocation. A tunnel bank server stores a list of available tunnels that may be used, associated with values of various attribute types. The tunnel devices initiate communication with the tunnel bank server, and stays connected to it, for allowing a communication session initiated by the tunnel bank server. Upon receiving a request from a client to a content and for specific attribute types and values, a tunnel is selected by the tunnel bank server, and is used as a tunnel for retrieving the required content from the web server, using standard protocol such as SOCKS, WebSocket or HTTP Proxy. The client only communicates with a super proxy server that manages the content fetching scheme.

A data storage system includes multiple head nodes and multiple data storage sleds mounted in a rack. For a particular volume or volume partition one of the head nodes is designated as a primary head node for the volume or volume partition. The primary head node is configured to store data for the volume in a data storage of the primary head node and cause the data to be replicated to a secondary head node. The primary head node is also configured to cause the data for the volume to be stored in a plurality of respective mass storage devices each in different ones of the plurality of data storage sleds of the data storage system.

Aspects of the disclosure may include, for example, determining, by a first processing system, that first data is unavailable within a first storage device of the first processing system, resulting in a first determination, determining, based on the first determination, that the first data is available within a second storage device of a second processing system, resulting in a second determination, wherein the first processing system and the second processing system are included in a first tier of a processing system hierarchy, and wherein the processing system hierarchy includes a second tier, the second tier including a third processing system, obtaining, based on the second determination, the first data from the second storage device of the second processing system, and transmitting, based on the obtaining of the first data from the second storage device of the second processing system, the first data to a communication device. Other embodiments are disclosed.

Techniques for scalable virtualization of an Input/Output (I/O) device are described. An electronic device composes a virtual device comprising one or more assignable interface (AI) instances of a plurality of AI instances of a hosting function exposed by the I/O device. The electronic device emulates device resources of the I/O device via the virtual device. The electronic device intercepts a request from the guest pertaining to the virtual device, and determines whether the request from the guest is a fast-path operation to be passed directly to one of the one or more AI instances of the I/O device or a slow-path operation that is to be at least partially serviced via software executed by the electronic device. For a slow-path operation, the electronic device services the request at least partially via the software executed by the electronic device.

Systems and methods for caching data and generating responses to data requests are disclosed. A content delivery system for sending requested data to a client based on a client request in accordance with one or more embodiments of the present invention comprises a server for compiling data into a data cache, and a headend, coupled to the server, for obtaining the data, categorizing and storing the data in groups in an object cache, receiving a client request, picking data from the object cache and generating a response, and returning the response while caching the response in a response cache that is used to directly respond to future client requests.

The present invention relates to a wireless network communication technology, and in particular to a time synchronization error compensation method for multi-hop wireless backhaul network based on PTP. Based on PTP, the present invention uses an intermediate node to count the timestamps of transceiving the PTP synchronization message Sync and the delay request message Delay_Req, detect and compensate the local forwarding time of synchronization message Sync and the delay request message Delay_Req and the link delay of transmitting the two between nodes based on the linear regression technology, thereby finally implementing asymmetric delay correction of wireless links between the master and slave nodes and completing time synchronization error compensation. The present invention uses the header of the PTP message to transmit the additional time information about the compensation time, the sending time and arrived time of the message and time correction value without modifying the existing PTP, thereby reducing the message overhead, meeting requirements of real-time and high precision of synchronization error compensation, improving the existing time synchronization precision and having strong practicality.

A memory cache control method for a parallel processing device having a plurality of nodes, wherein a first node stores first data as a client cache in a first storage device and switches an use of the stored first data to a server cache; and a second node stores the first data in a second storage device which is slower than the first storage device, records data management information which indicates that the first data is being stored by in the first storage device of the first node, and when a transmission request of the first data is received from a third node, refers to the data management information, and when the first data is stored in the first storage device of the first node and when the first data is switched to the server cache, instructs the first node to transmit the first data to the third node.