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virtd

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  1. Thank you for your reply. I would like to clarify some points: Regarding BypassIO, it was indeed the primary focus of my initial post. It's crucial to understand that BypassIO is currently operational on any Windows 11 system equipped with an M.2 SSD. This high-performance I/O path is not exclusive to DirectStorage; it also serves as a foundation for other technologies, such as I/O Rings. As for DirectStorage, I concur with your observation. Currently, only Forspoken supports DirectStorage, with Diablo 4 expected to follow suit later this year. I apologize if my previous post gave a different impression; my intention was to provide accurate information, hence the inclusion of relevant articles. DirectStorage, which is built upon BypassIO, is designed to enhance game performance by facilitating direct loading of assets from an NVMe SSD to the GPU, bypassing the CPU. This is particularly beneficial for games featuring expansive open-world environments that require streaming of substantial graphical assets. The adoption of new technologies in the gaming industry often follows a pattern of initial limited implementation, followed by rapid expansion as the benefits become more evident and the technology enters the mainstream. This pattern is evident in the adoption of technologies such as DLSS/FSR or ray tracing, which, despite initial limited support, are now increasingly prevalent. It's also worth noting that the underlying technology empowering DirectStorage is not confined to the PC platform. Both the PlayStation 5 and Xbox Series X have implemented similar concepts with their custom SSD solutions that facilitate rapid asset streaming. The significant investment by both major console manufacturers in this technology underscores its importance for the future of gaming, and we can anticipate future PC ports of games designed to benefit from these storage architectures. In the realm of PC gaming, Nvidia's RTX IO serves as a prime example of this trend. RTX IO, designed to work in tandem with Microsoft's DirectStorage API, facilitates rapid GPU-based loading and game asset decompression. This mechanism allows developers to load assets directly into the GPU memory, bypassing the CPU and reducing the strain on the system's storage subsystem. While the current number of games utilizing DirectStorage may be small, the potential impact of these technologies on the future of gaming is substantial. Still, today, just having BypassIO support would be very welcome.
  2. From BypassIO for filter drivers - Windows drivers | Microsoft Learn: From Supporting BypassIO operations - Windows drivers | Microsoft Learn:
  3. Heya! Any news on this issue? There is an increasing number of PC games starting to use DirectStorage, and without support for BypassIO in DrivePool they won't work. Those games (e.g. Forspoken, Diablo 4) must currently be installed outside the pool to take advantage of DirectStorage. From BypassIO for filter drivers - Windows drivers | Microsoft Learn: BypassIO/DirectStorage support can be checked in several ways. For example: 1) In the terminal (comparing my M.2 "C" drive to my Drivepool "D" drive): >fsutil bypassIo state c:\ BypassIo on "c:\" is currently supported Storage Type: NVMe Storage Driver: BypassIo compatible >fsutil bypassIo state d:\ Error: Incorrect function. 2) Using the Xbox Gaming Bar: How to Use DirectStorage in Windows 11 (lifewire.com) Cheers.
  4. BypassIO was introduced with Windows 11. More info on: https://learn.microsoft.com/en-us/windows-hardware/drivers/storage/bypassio (storage drivers) or https://learn.microsoft.com/en-us/windows-hardware/drivers/ifs/bypassio (filter drivers). "It is important that storage drivers implement support for BypassIO, and that you keep BypassIO enabled as much as possible. Without storage stack support, game performance will be degraded, resulting in a poor gaming experience for end users." This will be crucial for DirectStorage support; also "There will be broader application uses beyond gaming in future Windows releases." Is DrivePool compatible with BypassIO on pooled NVMe drives? Or can it be? Thanks!
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