Indirection table4/27/2023 The upper layer driver also sets the NDIS_RECEIVE_SCALE_PARAMETERS structure used in the OID request as follows. The upper layer driver sets the VPortId field in the NDIS_OID_REQUEST structure to the ID of the target VPort of the new configuration. The upper layer driver enables, disables, or changes the RSS parameters of a VPort by issuing an OID_GEN_RECEIVE_SCALE_PARAMETERS OID request. If an upper layer driver wishes to change any of the RSS static parameters, it must delete and recreate the VPort. However the RSS hash type, hash function, and hash secret key of a VPort are considered static parameters and are not changed by the overlying drivers during the lifetime of a VPort. The driver can update the RSS indirection table of the VPort in order to change the number queues for a VPort. ganeshts: These are guaranteed fakes.After creating a VPort, an upper layer driver can enable, disable, or update the RSS parameters of the VPort.ganeshts: Couple of lines in the article specify the throughput as 194GBps, while the program thr….RyanSmithAT: RT Thank you Pat and for many cherished memories and incredible learning over the past 5 years.ganeshts: Is there any template that CA residents could use to reach out to their state senator….ganeshts: It is still too pricey for outdated Whiskey Lake (GPU drivers are already in 'EOL' mode by Intel).gavbon86: If you don't overclock this so that it can go 50 mph backward, I'll be very disappointed.□.That being said, I'm not 100% sure, though gavbon86: I would have thought it would have been a ROM chip via MEBx.gavbon86: Better at what, exactly? Providing additional layers of security features for enterprise and small busine….It perpetuates harmful stereotypes abt South Asians, specifically Indian and Hindu Americans, bas… RyanSmithAT: RT It's with sadness that we report that Gordon Moore, the tech industry visionary and co-founder of Intel, has passed away tod….RyanSmithAT: It's great to see that LTT was able to recover so quickly, given what happened.RyanSmithAT: Meanwhile, having missed the original scam videos, I have to admit I cracked up a bit at Linus's scam description.….Cable security requirements and OCUR took all the fun out of doing TV on PCs RyanSmithAT: Ahh, memories of times long gone. ![]() As soon as we run samples through our test suite you can expect a full review, putting Intel's claims to the test. If it ends up performing as Intel promised, the S3700 controller could be the beginning of a new era in SSD performance - one focused on consistency of performance, not just absolute performance. The Intel SSD DC S3700 appears to be a very promising new architecture from Intel. The results, if they are anywhere close to what Intel is promising, are pretty awesome. It sounds like a simple change, but building this new architecture took quite a bit of work. The indirection table itself is physically stored in NAND (just cached in DRAM), and there are two large capacitors on-board to push any updates to non-volatile storage in the event of power loss. Once again, there's no user data stored in the external DRAM. That area is reserved for a cache of the controller's firmware so it doesn't have to read from slow flash to access it. There's a bit of space left over after you account for the new indirection table. Intel appears to be using DDR3-1333 for its DRAM on-board S3700 drives. ![]() By my calculations, the table itself should require roughly 100MB of DRAM per 100GB of storage space on the drive itself. In its largest implementation (800GB), Intel needs a full 1GB of DRAM to store the indirection table. It requires a large amount of DRAM depending on the capacity of the drive. The old binary tree was very space efficient, while the new array is just huge. The downside to all of this is the DRAM area required by the new flat indirection table. Drives based on this new controller only have to keep the NAND defragmented. The other benefit of being 1:1 mapped with physical NAND is that there's no need to defragment the table, which immediately cuts down the amount of work the controller has to do. The array isn't dynamically created and, since it's a 1:1 mapping, searches, inserts and updates are all very fast. What happens now is there's a giant array with each location in the array mapped to a specific portion of NAND. The new controller ditches the binary tree entirely and moves to a completely flat structure with 1:1 mapping. The S3700 controller completely does away with the old indirection table. While the binary tree structure was great for sequential IO performance and for keeping DRAM sizes low, it wasn't good for lowering random IO latency.
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