164 results about "Preemption" patented technology

A user-level read-copy update (RCU) technique. A user-level RCU subsystem executes within threads of a user-level multithreaded application. The multithreaded application may include reader threads that read RCU-protected data elements in a shared memory and updater threads that update such data elements. The reader and updater threads may be preemptible and comprise signal handlers that process signals. Reader registration and unregistration components in the RCU subsystem respectively register and unregister the reader threads for RCU critical section processing. These operations are performed while the reader threads remain preemptible and with their signal handlers being operational. A grace period detection component in the RCU subsystem considers a registration status of the reader threads and determines when it is safe to perform RCU second-phase update processing to remove stale versions of updated data elements that are being referenced by the reader threads, or take other RCU second-phase update processing actions.

One embodiment of the present invention sets forth a technique instruction level and compute thread array granularity execution preemption. Preempting at the instruction level does not require any draining of the processing pipeline. No new instructions are issued and the context state is unloaded from the processing pipeline. When preemption is performed at a compute thread array boundary, the amount of context state to be stored is reduced because execution units within the processing pipeline complete execution of in-flight instructions and become idle. If, the amount of time needed to complete execution of the in-flight instructions exceeds a threshold, then the preemption may dynamically change to be performed at the instruction level instead of at compute thread array granularity.

An automated traffic control process and system providing automatic remote monitoring the locations of one or more remote vehicles, determining which vehicles fall within one or more preference categories, and if a vehicle in a particular preference category is detected as approaching a remote intersection, issuing a preemption instruction to a traffic signal controller for the remote intersection. Various other process and system features can include one or more among: monitoring numerous vehicles and intersections, vehicle location monitoring, categorization, and issuance of preemption instructions on a centralized computing system; safety or other condition assessment and control of issuance of signaling instructions accordingly; determination of whether one or more the traffic intersection signaling controller should be operating according to one among differing hierarchical condition categories, and issuance of instructions causing remote traffic signaling to lock in a particular state, such as, for example in a right of way state.

The invention provides a projection screen connection control method and electronic equipment. The method comprises the following steps: sending end equipment obtains preemption capability information of a receiving end device, wherein the preemption capability information indicates whether the receiving end device supports preemption projection screen connection or not; and when the receiving end equipment supports the preemptive screen projection connection, the sending end equipment sends first configuration information to the receiving end equipment in response to a user instruction, so that the receiving end equipment is configured to not support the preemptive screen projection connection. According to the technical scheme of the invention, the sending end equipment can obtain the preemption capability of the receiving end equipment, so that the sending end equipment can dynamically configure the preemption capability of the receiving end equipment according to the preemption capability of the receiving end equipment and user requirements. For example, if the user does not want to preempt the projection screen connection, the sending end equipment can configure the receiving end device to be not support preemption, so that the content delivered by the user on the receiving end equipment is prevented from being interfered or interrupted, the preemption logic of the streaming media projection screen scene is optimized, and the user experience is improved.

The invention discloses distributed system scheduling method and device and electronic equipment. The distributed system scheduling method includes that a management center of a distributed system acquires quantity and sequence number M of resource providing units of the distributed system; the management center of the distributed system acquires quantity and number of resource consumption units; the quantity of the resource consumption units is divided by the quantity of resource providing units to obtain the resource consumption unit average bearing quantity N born by the resource providing units; N or (N-1) or (N+1) resource consumption units are extracted from the resource consumption units according to the sequence of the number of the resource consumption units and are taken as the resource consumption units distributed to the resource providing units on the basis of the resource providing unit sequence number M. According to the technical scheme, problems of low task handling efficiency and deadlock possibility caused during task distribution carried out by means of distributed locks of the distributed system, and low speed of convergence in task distribution and long distribution time caused by circular preemption are solved.

The invention discloses an embedded multi-core operating system scheduling method and a scheduling device, electronic equipment and a storage medium, and the scheduling method comprises the steps: triggering periodic task scheduling through timer clock interruption, enabling a basic scheduling strategy of time-sharing parallel and multi-priority management of multiple tasks to trigger real-time preemption of a key task through external interruption; providing a mechanism for time-sharing scheduling of a plurality of partition microcores, and supporting a priority-based round-robin task scheduling mechanism in the microcores. According to the method, system task scheduling with high timeliness requirements is completed, multi-task security isolation parallel data processing is also completed, multi-task space isolation is ensured, and the security and reliability of the system are improved.

The embodiment of the invention provides a resource scheduling method and device based on a Hadoop cluster, electronic equipment and a storage medium, and relates to the technical field of big data. The resource scheduling method comprises the steps: receiving a resource preemption request of a resource preemption thread; in response to the resource preemption request, obtaining a target job needing to calculate resources; judging whether the whole cluster has enough residual computing resources or not and whether the computing resources can be preempted or not according to the target operation; when it is determined that the overall cluster is not sufficient for the remaining computing resources and computing resources may be preempted, excessively allocating the computing resources to the target job. According to the technical scheme of the embodiment of the invention, preemption in allocation is independent through the adjustment logic, the resource allocation efficiency of the cluster is improved, and the working efficiency of the system is improved.

The invention relates to an application processing method and apparatus, a mobile terminal and a storage medium. The method comprises the steps of obtaining an application identifier of an application when it is monitored that the application is switched to a background from a foreground; judging whether the application identifier is recorded in a blacklist or not; and if the application identifier is recorded, stopping running the application, wherein the identifier of the application which is monitored to occupy a CPU abnormally for continuous first preset times is recorded in the blacklist. According to the application processing method and apparatus, the mobile terminal and the storage medium, the situation of jamming of the application running in the foreground due to resource preemption can be effectively reduced.

One embodiment of the invention discloses a parallel test task scheduling optimization method, a device and computing equipment. The method comprises the steps: S10, obtaining test parameters which comprise a test task, a test project, a test resource, a predicted execution period, a father-son relation between the test projects, and a preemption priority; s20, the test parameters are automatically input into a relational database, the relational database is configured to be a test requirement form associated with the test parameters, and the test requirement form stores corresponding relations between the test items and the test resources, predicted execution periods, parent-child relations and preemption priorities; s30, establishing a simulation training task according to the test demand form to optimize the scheduling method, and forming a test result form according to the entry time, the exit time and the actual execution period of the task; and S40, forming an optimal task scheduling strategy according to the test result form.