Computing methods commonly observe entry to reminiscence pages by hardware or ItagPro software. Memory-page portable tracking tag is beneficial in a large variety of use-circumstances, e.g., in migration of Virtual Machines (VMs) between bodily compute nodes, in web page-swapping between a memory and a storage gadget, in numerous caching schemes, to name just a few examples. An embodiment of the present invention that is described herein provides a compute node together with a memory, a processor and a peripheral machine. Direct Memory Access (DMA), and to notify the processor of the second reminiscence pages which are accessed using DMA. In nonetheless another embodiment, the peripheral machine is to notify the processor of the second reminiscence pages by reporting respective addresses of the second reminiscence pages. Using a peripheral gadget, a number of second reminiscence pages are accessed instantly within the reminiscence using Direct Memory Access (DMA), and the processor is notified of the second memory pages which are accessed utilizing DMA.
A number of memory pages are accessed immediately, the peripheral device utilizing Direct Memory Access (DMA), and the processor is notified of the reminiscence pages which might be accessed using DMA. FIG. 2 is a stream chart that schematically illustrates a technique for monitoring reminiscence pages, in accordance with an embodiment of the present invention. FIG. 3 is a block diagram that schematically illustrates migration of a Virtual Machine (VM) between compute nodes, in accordance with an embodiment of the current invention. Embodiments of the present invention which might be described herein provide improved methods and systems for monitoring reminiscence-web page entry in a compute node. "dirty pages," and the 2 phrases are used interchangeably herein. "dirty page," and the definition of when a web page is no longer thought of soiled, might differ relying on the applying. 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 suboptimal performance.
On this manner, the processor is able to completely monitor all soiled pages in the memory, whatever 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 present invention. FIG. 1 is relatively generic, in the sense that it isn't software-specific and is applicable to numerous types of compute nodes and peripheral devices. Several concrete examples are described additional under. Compute node 20 may comprise, for example, portable tracking tag a server in a data center, a workstation, or another appropriate type of compute node. Node 20 includes a processor 24 and a reminiscence 28 . 24 comprises a Central Processing Unit (CPU), however the processor may alternatively comprise a Graphics Processing Unit (GPU) every other appropriate sort of processor. Memory 28 includes a Random-Access Memory (RAM) in the present instance, however might alternatively comprise some other suitable sort of memory.
Node 20 additional comprises a peripheral system 32 that communicates with processor 24 and with reminiscence 28 over a peripheral interface 36 . Peripheral machine 32 might comprise, for instance, a community adapter resembling an Ethernet Network Interface Controller (NIC), an InfiniBand Host Channel Adapter (HCA), a smart-NIC, an information Processing Unit (DPU), a network-enabled GPU, or every other appropriate sort of network adapter. 32 may comprise a storage system, equivalent to a Solid-State Drive (SSD) or a Small Computer System Interface (SCSI) disk. Peripheral interface 36 could comprise, for example, ItagPro a Peripheral Component Interconnect specific (PCIe) bus. 24 runs software program 40 that, among other tasks, ItagPro accesses memory pages 44 in memory 28 . Software 40 may comprise, for instance, a hypervisor, a number of VMs, one or more applications ("apps"), an OS, and/or another appropriate kind of software program. Software forty could read and/or write memory pages 44 , as appropriate. 44 are also referred to easily as "pages," for brevity.