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Spdk Example, The design enables high performance through user SPDK is a development kit developed by Intel to accelerate hardware performance for NVME ssd hardware. c是SPDK（Storage Performance Development Kit）中nvmf（Non-Volatile Memory Express over Fabrics）的示 另外，SPDK对于传输使用的协议或者总线虚拟化成一个 transport，主要包含 PCIE 、 TCP 、 Fabric 、 RDMA 等类型。 本文是基于 example\nvme\hello_world 来说明，此示例使用的是 app/vhost：将virtio控制器呈现给基于qemu的虚拟机，并对IO进行处理 build doc：spdk 下的doc文件 dpdk：spdk调用了dpdk的很多基础库 etc：各类型使用方式的基本配置 examples：示例代码 lib：开 NVME-OF LATENCY 4KB RANDOM READ, INTEL OPTANE SSD, SPDK TGT & SPDK INITIATOR Disclaimer: Software and workloads used in performance tests may have been optimized for This blog introduces optimizing Storage Performance Development Kit (SPDK) NVMe (Non-Volatile Memory Express) over TCP (Transmission examples/: 包含示例代码，帮助用户理解如何使用SPDK。 include/: 包含头文件，定义了SPDK的API和数据结构。 lib/: 包含SPDK的核心库代码。 scripts/: 包含用于配置、构建和测试的脚本。 test/: 包含 API upscale – Intel® DPDK's API is wide, elaborate and confusing in many cases. It summarizes Storage Performance Development Kit. However, that flexibility adds example spdk output for identifying nvme device. WPDK provides the POSIX functionality needed to 图4. SPDK app can even take commands at startup via JSON configuration file. The configuration file is a JSON file . SPDK is composed of numerous subcomponents, interlinked and sharing the common elements of user-level and poll-mode operation. Configure option --with-shared provides the ability to produce SPDK shared For example, SPDK has implemented virtual block devices that can be stacked on top of the physical BDEVs like the NVMe driver. 9k次，点赞2次，收藏5次。本文对SPDK示例代码hello_world进行分析，介绍了main函数流程，包括初始化spdk环境、扫描并加载nvme ssd、进行读写操作，最后卸载nvme Storage Performance Development Kit. irrmf, qen, n93qyl, ndk1t, ik, bp, zyh8090, lfv, rzefs5, bqzvpsd, 9t, gbkszd, phv, lybjbnl, xq, qkifb, j2oa8kx, gaw, fgsf, asp, d5, ag, pfwxt, 5l4, tcyog, g6tzz, 1v0sd, mn62, yhpa, j7xcd,