金色财经|6月 27, 2026 12:56
[Marvell Technology Launches CXL Compression Accelerators: Memory Too Expensive, 1GB Becomes 3.64GB to the Rescue]
Golden Finance reports that on June 27, according to Fast Technology, Marvell Technology recently announced updates to its Structera CXL controller series, introducing two products: Structera X and Structera A. These products focus on hardware inline memory compression to alleviate memory capacity and bandwidth pressures in AI scenarios.
Structera X is positioned as a CXL memory expansion controller, supporting DDR5 and DDR4, equipped with four ARM Cortex-M7 cores, CXL 2.0/PCIe 5.0 x16 ports, up to 200GB/s memory bandwidth, and supporting more than 6TB of DDR5 and more than 4TB of DDR4 memory capacity. Structera A, on the other hand, is a near-memory accelerator, integrating 16 Arm Neoverse V2 cores (3.2GHz), four Cortex-M7 cores, 64MB last-level cache, and four DDR5-6400 channels.
Both controllers feature a dedicated hardware module called CDB (Compression-Decompression Block), which performs real-time compression when data is written to DRAM and decompression when read, operating independently of the host CPU throughout the process. Applications do not require any code modifications. The CDB uses a customized version of the LZ4 lossless compression algorithm, supporting 4KB and 1KB pages, with a maximum compression ratio of 64:1 for all-zero pages. In mixed real-world data tests, database data achieved a compression ratio of 3.64x, XML data 2.75x, and source code approximately 2.00x.
The Structera products are among the first in the industry to submit solutions incorporating hardware inline memory compression into the OCP (Open Compute Project) specifications. Based on the current server-grade DDR5 RDIMM spot price of approximately $27 to $37 per GB, the DRAM cost for a 12TB memory pool alone approaches $500,000. Through hardware compression, the CDB transforms each GB of physical DRAM into significantly more usable memory capacity.
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