Unverified50% confidenceFactExact time
DMA allows peripherals (such as NVMe SSDs or network cards) to exchange data directly with system memory or device memory without the CPU moving it byte by byte.
1
Sources
50%
Confidence
Long-term
Relevance
10/30/2026
First Seen
Sources
Related Entities
Related Claims
VerifiedRDMA allows the NIC to transfer data directly between the memory of two machines, bypassing the CPU and OS, reducing latency to the microsecond level while consuming almost no CPU resources.71% similarUnverifiedNetBSD的bus_space和bus_dma抽象接口为设备驱动提供统一的硬件寄存器访问和DMA操作API，使驱动程序可跨平台运行69% similarUnverified独立显卡拥有与系统内存物理隔离的独立显存，数据需通过PCIe总线在主机内存与设备显存之间显式搬运69% similarUnverifiedDAS (Direct-Attached Storage) is a multi-bay storage device connected directly to the host via USB or eSATA interfaces, distinct from NAS which is accessed over a network.68% similar
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