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posted by FatPhil on Tuesday September 28 2021, @01:24AM   Printer-friendly
from the chip-crisis?-what-chip-crisis? dept.

Blazing fast PCIe 5.0 SSD prototype hits sequential read speeds of 14,000 MB/s:

Advancements in the storage segment are the unsung heroes in today's world of computing. While many users tend to focus on the speed of their CPU, GPU or even the higher refresh rate of their displays, the increasingly quick solid state drives are in part responsible for the performance improvements of Sony's and Microsoft's next-gen consoles. But while the PlayStation 5 and Xbox Series X/S rely on PCIe 4.0 SSDs, a Japanese memory manufacturer is already finalizing the development of its blazing fast PCIe 5.0 storage solutions.

In a recent presentation, Kioxia has now revealed how quick PCIe 5.0 SSDs can truly be. While the throughput of the PCIe 5.0 interface at 32GB/s per lane is exactly twice as high compared to PCIe 4.0, the company's first prototype has apparently reached sequential read speeds as high as 14,000MB/s. That is also twice as fast as Kioxia's currently top of the line PCIe 4.0 drive.

Even though these read speeds certainly seem impressive, the write speeds of Kioxia's PCIe 5.0 SSD are similarly spectacular. The official benchmark says the drive can reach sequential write speeds of 7,000MB/s, which is a 67% improvement to the predecessor. Overall, these speeds seem to be absolute overkill for most use cases, which is why these drives are intended for use in a professional server setting. Nevertheless, the rapid advancements in storage speeds certainly deserve more attention than the often incremental upgrades in the CPU and GPU sector.

Of course, there's more to storage than speed, there's reliability, for example. Would any gamers want to prove the "professional server setting" assumption wrong?


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  • (Score: 1, Interesting) by Anonymous Coward on Thursday September 30 2021, @10:08PM

    by Anonymous Coward on Thursday September 30 2021, @10:08PM (#1183211)

    Sadly it is a bit more complicated than that. Back when SSDs came out, they did that directly without the FTL. But that caused problems because drives would lie, different types of drives require different treatment, and many admins would treat them like HDDs anyway. They overcorrected by making overcomplex FTLs but ended up hiding too much too. Now I think they are going to find a better middle ground, through the ZNS and its kernel-side zone file systems becoming more common as is the understanding that the device and the kernel can cooperate to their mutual benefit without stepping on each-other's feet.

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