Demystifying CXL Memory with Genuine CXL-Ready Systems and Devices — mentioned by riehwvfbk

Sun, 17 Mar 2024 02:43:56 GMT

That doesn't match my intuition about CXL memory. It's latency AFAIK is more similar to accessing NUMA memory on another socket (and applications are OK with blocking on that) than an SSD. So quite a bit faster. Actual measurements seem to support this: https://arxiv.org/pdf/2303.15375.pdf (see Figure 3)

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Demystifying CXL Memory with Genuine CXL-Ready Systems and Devices — mentioned by eternalban

Fri, 07 Apr 2023 17:54:26 GMT

Demystifying CXL Memory with Genuine CXL-Ready Systems and Devices, 2023 https://ar5iv.labs.arxiv.org/html/2303.15375 In this work, we explore CXL memory’s performance characterization on a state-of-the-art experimental platform. First, we study the basic performance characteristics of CXL memory using our proposed microbenchmark. Based on our observations and comparisons to standard DRAM connected to local and remote NUMA nodes, we also study the impact of CXL memory on end-to-end applications with different offloading and interleaving policies. Finally, we provide several guidelines for…

Paper and discussion history. A mention is not an endorsement.

Demystifying CXL Memory with Genuine CXL-Ready Systems and Devices · HackerPapers discussions

Demystifying CXL Memory with Genuine CXL-Ready Systems and Devices — mentioned by riehwvfbk

Demystifying CXL Memory with Genuine CXL-Ready Systems and Devices — mentioned by eternalban