RDMA supports zero-copy networking by enabling the network adapter to transfer data directly to or from application memory, eliminating the need to copy data between application memory and the data buffers in the operating system.

When an application performs an RDMA Read or Write request, the application data is delivered directly to the network, reducing latency and enabling fast message transfer.

Software vendors such as Red Hat and Oracle Corporation support these APIs in their latest products, and network adapters that implement RDMA over Ethernet are being developed.

* iSER, the iSCSI Extensions for RDMA computer network storage protocol

Not only does this polling consume CPU cycles, but the memory footprint and the latency increases linearly with the number of possible other nodes, which limits use of RDMA in High-Performance Computing ( HPC ).

However, new standards enable Ethernet RDMA implementation at the physical layer and TCP / IP as the transport, combining the performance and latency advantages of RDMA with a low-cost, standards-based solution.

NFS over RDMA is an adaptation of NFS that uses RDMA as a transport.

* SCSI RDMA Protocol, for transferring SCSI commands and data between a SCSI initiator port and target port at an RDMA layer, i. e. Infiniband

In computing, remote direct memory access ( RDMA ) is a direct memory access from the memory of one computer into that of another without involving either one's operating system.

In particular, zero-copy RDMA protocols require that the memory pages involved in a transaction be pinned, at least for the duration of the transfer.

If this is not done, RDMA pages might be paged out to disk and replaced with other data by the operating system, causing the DMA engine ( which knows nothing of the virtual memory system maintained by the operating system ) to send the wrong data.

The net result of not pinning the pages in a zero-copy RDMA system can be corruption of the contents of memory in the distributed system.

Much like other HPC interconnects, RDMA ’ s acceptance is currently limited by the need to install a different networking infrastructure.

The RDMA Consortium and the DAT Collaborative have played key roles in the development of RDMA protocols and APIs for consideration by standards groups such as the Internet Engineering Task Force and the Interconnect Software Consortium.

Both Red Hat Enterprise Linux and Red Hat Enterprise MRG have support for RDMA.

Microsoft supports RDMA in Windows Server 2012 via SMB Direct and native NIC Teaming.

Common RDMA implementations include the Virtual Interface Architecture, InfiniBand, and iWARP.

Lustre will take advantage of remote direct memory access ( RDMA ) transfers, when available, to improve throughput and reduce CPU usage.

Remote Direct Memory Access ( RDMA ) is permitted when supported by underlying networks such as Quadrics Elan, Myrinet, and InfiniBand.

RDMA ( Remote Direct Memory Access ) protocols deeply rely on zero-copy techniques.

This reduces the number of useless cells in the network, saving bandwidth for full packets.

Second, it reduces the amount of traffic routed through the gnutella network.

* Congestion occurs when the efficiency of a network decreases as more people use it, and this reduces the value to people already using it.

The star topology reduces the chance of network failure by connecting all of the systems to a central node.

The star topology reduces the probability of a network failure by connecting all of the peripheral nodes ( computers, etc.

The use of multicasting further reduces the network load.

* wireless mesh network where every added radio increases total capacity and reduces the power required at any one node.

This, in turn, often significantly reduces the number of evaluations performed by the Rete network.

When compared to sending messages normally, this reduces IRC network load, allows sending of larger amounts of text at once, due to the lack of flood control, and makes the communication more secure by not exposing the message to the IRC servers ( however, the message is still in plaintext ).

A distribution substation transfers power from the transmission system to the distribution system of an area. It is uneconomical to directly connect electricity consumers to the main transmission network, unless they use large amounts of power, so the distribution station reduces voltage to a level suitable for local distribution.

MOM allows application modules to be distributed over heterogeneous platforms and reduces the complexity of developing applications that span multiple operating systems and network protocols.

The system therefore reduces broadcast traffic on the network, however replication traffic can add to WAN / LAN traffic, although this can be set to replicate in non busy periods.

Watts and Strogatz showed that, beginning with a regular lattice, the addition of a small number of random links reduces the diameter — the longest direct path between any two vertices in the network — from being very long to being very short.

There was no time to use voltage reduction ( which keeps customers on supply, but subtly reduces their demand through reducing the voltage slightly ); as a result, 546 MW of demand was automatically disconnected by distribution network operators.

This helps users by preventing bill shock and reduces the load on the mobile network operator's customer service department.

Client-side prediction reduces latency problems, since there no longer will be a delay between input and client-side visual feedback due to network ping times.

Sharing of knowledge and experience within communities reduces risks, and supports a network of other trades such as carriers, market agents, and heavy machinery contractors, and contract farm labour.

Tillage reduces the inoculation potential of the soil and the efficacy of mycorrhizaes by disrupting the extraradical hyphal network ( Miller et al.

String interning also reduces memory usage if there are many instances of the same string value ; for instance, it is read from a network or from storage.

Such integration offers savings in the capital and operational costs, reduces floor-space, lowers power consumption and makes managing the network easier.

This provides improvements in speed as traffic travels directly between the parties and reduces load on the network by reducing the need for traffic to be duplicated through one or more intermediate ISP routers.

The sender reduces its sending rate for a certain amount of time, and then tries to find out if the network is no longer congested by increasing the rate again subject to a ramp-up.

On the converse, with time-division duplexing systems, care must be taken to keep guard times between neighboring base stations ( which decreases spectral efficiency ) or to synchronize base stations, so that they will transmit and receive at the same time ( which increases network complexity and therefore cost, and reduces bandwidth allocation flexibility as all base stations and sectors will be forced to use the same uplink / downlink ratio )

By so limiting the source, SSM reduces demands on the network and improves security.