US11836083B2 - Memory Access Tracking Utilizing A Peripheral Device - …
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작성자 Gabriela 댓글 0건 조회 0회 작성일 25-10-10 01:07본문
Computing methods commonly track entry to reminiscence pages by hardware or software program. Memory-page tracking is helpful in a large variety of use-cases, e.g., in migration of Virtual Machines (VMs) between bodily compute nodes, in web page-swapping between a memory and a storage gadget, in various caching schemes, to call only a few examples. An embodiment of the present invention that's described herein gives a compute node including a reminiscence, a processor and iTagPro tracker a peripheral gadget. Direct Memory Access (DMA), and to notify the processor of the second reminiscence pages which might be accessed using DMA. In nonetheless one other embodiment, the peripheral device is to notify the processor of the second reminiscence pages by reporting respective addresses of the second memory pages. Using a peripheral system, one or iTagPro tracker more second reminiscence pages are accessed straight in the reminiscence using Direct Memory Access (DMA), and the processor is notified of the second reminiscence pages which can be accessed utilizing DMA.
One or more reminiscence pages are accessed instantly, the peripheral machine using Direct Memory Access (DMA), and the processor is notified of the reminiscence pages that are accessed utilizing DMA. FIG. 2 is a circulation chart that schematically illustrates a method for monitoring reminiscence pages, in accordance with an embodiment of the present invention. FIG. Three is a block diagram that schematically illustrates migration of a Virtual Machine (VM) between compute nodes, pet gps alternative in accordance with an embodiment of the current invention. Embodiments of the present invention which are described herein present improved methods and methods for monitoring reminiscence-page entry in a compute node. "dirty pages," and ItagPro the two terms are used interchangeably herein. "dirty page," and the definition of when a page is not considered soiled, may differ relying on the appliance. CPU of the compute node. DMA into the CPU memory. Such partial monitoring of dirty pages is problematic and should lead to information inconsistency and iTagPro tracker suboptimal efficiency.
In this manner, the processor is ready to fully observe all soiled pages within the memory, iTagPro tracker regardless of the entity that rendered these pages soiled. Several examples are described herein. FIG. 1 is a block diagram that schematically illustrates a compute node 20 that tracks soiled pages in accordance with an embodiment of the current invention. FIG. 1 is comparatively generic, in the sense that it isn't software-particular and buy itagpro is relevant to numerous kinds of compute nodes and peripheral gadgets. Several concrete examples are described additional under. Compute node 20 might comprise, for instance, a server in a knowledge middle, a workstation, or some other suitable sort of compute node. Node 20 contains a processor 24 and a memory 28 . 24 comprises a Central Processing Unit (CPU), pet tracking device but the processor might alternatively comprise a Graphics Processing Unit (GPU) any other suitable type of processor. Memory 28 contains a Random-Access Memory (RAM) in the present instance, but could alternatively comprise every other appropriate kind of memory.
Node 20 further includes a peripheral device 32 that communicates with processor 24 and with reminiscence 28 over a peripheral interface 36 . Peripheral system 32 could comprise, for instance, a network adapter equivalent to an Ethernet Network Interface Controller (NIC), an InfiniBand Host Channel Adapter (HCA), a smart-NIC, an information Processing Unit (DPU), a community-enabled GPU, or any other appropriate sort of community adapter. 32 could comprise a storage machine, resembling a Solid-State Drive (SSD) or a Small Computer System Interface (SCSI) disk. Peripheral interface 36 might comprise, for instance, a Peripheral Component Interconnect specific (PCIe) bus. 24 runs software program 40 that, among different tasks, iTagPro tracker accesses reminiscence pages 44 in reminiscence 28 . Software forty may comprise, for example, a hypervisor, a number of VMs, iTagPro tracker one or more functions ("apps"), an OS, and/or another suitable kind of software program. Software 40 might read and/or write memory pages forty four , iTagPro tracker as applicable. 44 are also referred to simply as "pages," for brevity.
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