嵌入式网络协议引擎ETA加速网络应用程序处理.pptVIP

SuperMicro,IntelPlumas,DualPrestonia,PCI-X嵌入式网络协议引擎(ETA)加速网络应用程序处理作者：林明峰日期：2003-12概要今天的网络环境和网络操作系统Linux的tcp/ipstack的性能嵌入内核的tcp加速模块ETA的现实应用今天的网络环境和操作系统2超过通用处理器处理极限3协议占用太多时间1通用处理器必须每67奈秒处理一个数据包10G的以太网络带来什么IntelIxp1200带来好处网络处理器对软件系统结果带来的问题灵活性和高性能的矛盾NP是唯一的解决方案吗?系统中断内存拷贝缓冲区管理系统呼叫Tcp/ip协议应用程序只能占用3%谁占用的cpu的时间.Linux的tcp/ip协议内核的resourcemanager(ckrm)01控制diskIO的资源分配03目前还不成熟02控制网络的IO分配04/区分出独立的协议处理层固定一个cpu来专门处理协议制定一个异步的通讯接口新的socket库来利用ETA01.02.03.04.我们的解决方案ETASystemArchitectureLANStorageIPCETAHostInterfaceIPStorage

DriverFile

SystemKernel

ApplicationsUser

SocketApplicationsSocket

ProxyNetworkstackVirtualized,asynchronousqueuingandeventhandlingEngineArchitectureplatformintegrationNetworkFabricPacketProcessingEngineDirectTransportInterfaceETA

PacketProcessingEngineNICApplication(KernelorUser)AdaptationLayerDTI

Event

QueueDTI

Rx

QueueDTI

Tx

QueueAnonymousBuffer

PoolDTI

DoorbellSharedHostMemoryApp

BuffersNIC…DTIOperationModelDTIoperations:Connectionrequests(Connect,Listen,Bind,Accept,Close,…)Datatransferrequests(Send,Receive)Misc.operations(Set/GetOptions,…)EVENTAEVENTBEVENTCEventQTxQOPAOPCRxQOPBOPDDTI

DoorbellProcess

OperationServiceDoorbellDe-Queue

OperationDescriptorPost

Completion

EventPost

ETAInterrupt

Event(ifwaiting)HostApplicationAdaptationlayerETAPPESoftwareGigabitNICs(5)ETAHostInterfaceKernel

TestProgramCPU0Host2.4GhzCPU1PPE2.4GhzOff-the-shelfLinuxServersHostMemoryClientsClientsClientsClientsTestClientsKernel

AbstractionLayerETATestEnvironmentSuperMicro,IntelPlumas,DualPrestonia,PCI-X*