在大规模分布式环境下,帮助评估共享内存资源的效率。 DCD(Device-Centric DCD): 支持对 CXL 设备进行设备中心化管理。 在虚拟环境中,提供更灵活的设备分配与访问控制。 Multi-Head DCD(多头 DCD): 模拟多个虚拟机或主机对同一个 CXL 设备的并发访问场景。 评估和优化 CXL 内存在复杂分布式系统中的性能表现。 Note...
> + (RO) Dynamic Capacity (DC) region information. Devices only > + export dcY if DCD partition Y is supported. > + dcY/shareable indicates true if the region is exported > + shareable from the device. > + > +What: /sys/bus/cxl/devices/memX/dcY/qos_class > +Date: December, 2024...
> > + (RO) Dynamic Capacity (DC) region information. Devices only > > + export dcY if DCD partition Y is supported. > > + dcY/size is the size of each of those partitions. > > + > > +What: /sys/bus/cxl/devices/memX/dcY/read_only > > +Date: December, 2024 > > +KernelVe...
The group said: “CXL technology maintains memory coherency between the CPU memory space and memory on attached devices, which allows resource sharing for higher performance, reduced software stack complexity, and lower overall system cost.” Specially, CXL "creates a high-speed, low latency intercon...
* [0] Dynamic Capacity Device (DCD) Support Multi-host sharing --- * [0] Hardware coherent shared memory * [0] Software managed coherency shared memory Multi-host memory --- * [0] Dynamic Capacity Device Support * [0] Sharing Accelerator --- * [0] Accelerator memory enumeration HDM-D...
Dynamic Capacity Device (DCD) X X X Global Integrated Memory (GIM) X X X Shared Memory verses Pooled Memory X X X Recommended Prerequisite: Good working knowledge of PCI Express a must. Computer architecture fundamentals. Knowledge of Intel, AMD or Arm processor architectures. Knowledge of...
A Dynamic Capacity Device (DCD) (CXL 3.0 spec 9.13.3) is a CXL memory device that implements dynamic capacity. Dynamic capacity feature allows memory capacity to change dynamically, without the need for resetting the device. 3、FM [RFC,v5,0/4] CXL: Standalone switch CCI driverpatchwork...
CXL 3.1 相较于 CXL 2.0 提供了更多命令集支持(例如多头设备、DCD 管理等)。 Note:后面将介绍 Jack 基于开源软件工具链构建FMAPI 管理工具。 CTL Tools 操作界面及CXL交换机工作原理示意图。 左侧图解: • Host(主机)通过 CXL Switch(交换机)连接多个 CXL 设备。
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