Windows 10 ryzen patch

Windows 10 ryzen patch - Free Download

While AMD's new Ryzen processors offer impressive performance to workloads such as software compilation, media encoding, 3D rendering, and indeed, anything that can take advantage of the 8 cores and 16 simultaneous threads, certain aspects of its gaming performance were uneven. It's still a very strong performer in games , especially for those who like to stream their gameplay to Twitch, but not consistently so. Some games that were expected to perform well on Ryzen didn't.

Testers also observed that there were some troublesome interactions with both power management and Ryzen's simultaneous multithreading SMT , with certain titles showing unexpectedly high performance drop-offs from having these features enabled. There was widespread hope that some combination of game patches and perhaps even operating system changes would go some way toward boosting Ryzen's gaming performance, or at least, making Ryzen perform in a more consistent way. The last few weeks have seen the release of a couple of game patches designed to address certain Ryzen issues.

AMD has also released guidance to game developers on how best to use its processor, as well as a new power management profile for Windows Together, we can gain some insight into some of the complexities of developing game software for modern processors and get some understanding of what kind of performance gains gamers might hope to see. The first big Ryzen patch was for Ashes of the Singularity. Ryzen's performance in Ashes was arguably one of the more surprising findings in the initial benchmarking.

The game has been widely used as a kind of showcase for the advantages of DirectX 12 and the multithreaded scaling that it shows. We spoke to the game's developers , and they told us that its engine splits up the work it has to do between multiple cores automatically.

Both parts are 8-core, thread chips, and while Broadwell-E has a modest instructions-per-cycle advantage in most workloads, Ryzen's higher clock speed is enough to make up for that deficit. PC Perspective tested the update, and depending on graphics settings and memory clock speeds, Ryzen's average frame rate went up by between 17 and 31 percent.

The X still trails the K, but now the gap is about 9 percent, or even less with overclocked memory but we'll talk more about memory later on. It's not entirely known what Oxide and Stardock changed in the patch we've asked but are still waiting on an answer , but there is some credible speculation that there were two issues possibly intertwined at play, both related to how data is loaded and stored in memory.

While much has been made of Ryzen's cache layout, and in particular its large, split level 3 cache, the Ashes changes aren't believed to be around cache, but instead relate to a processor's load and store queues. The processor does not simply read and write directly from and to cache or memory. Instead, reads loads and writes stores are buffered. The reason for this is that the processor executes instructions speculatively and out of order, but the results of that execution—the actual reads and writes to memory—need to occur in the order that the program specifies, and speculative writes that don't actually occur need to be cancelled.

The buffers are where this all happens. For example, branch prediction means that the processor might start executing a set of instructions without knowing for certain if it should skip over them instead.

If those instructions perform writes to memory, the write is put into the store buffer. If the processor subsequently determines that the branch predictor was correct, the store can be retired and written to memory. But if it discovers that the branch predictor was wrong, and the instructions should never have been executed at all, it can invalidate the store in the store buffer, canceling the write to memory before any other core can see it.

The processor can use the store buffer to fulfill load requests, too; if a store in the buffer should come before a load, the buffered store can be used to provide the value that would otherwise be read from memory, a process called store forwarding. Managing these buffers and their interactions with out-of-order execution is complex. The processor has to make sure that, for example, writes to the same location are handled properly and that the writes show up in the correct order.

Certain sequences of instructions can cause performance problems. Intel's optimization guides contain tables showing which combinations can forward and which cannot; the exact results depend not just on the architecture of the chip but on the size of the store and the memory addresses being used. The patterns are not always simple. For example, with a byte store, a 4-byte load can be forwarded if the memory address divided by 32 has a remainder of 0 to 4, 8 to 12, 16 to 20, or 24 to But if the remainder is 5 to 7, 13 to 15, 21 to 23, or 29 to 31, the load won't be forwarded.

Optimizing compilers should know the rules about things like store forwarding and should strive to produce code that follows the rules as best it can. If it gets things wrong, the result can be bad performance. Sometimes this can be unavoidable, but often the compiler has several options for how it could generate equivalent code, and it needs to figure out which one is best. The other suggestion about the Ashes patch is about the use of a set of instructions called non-temporal instructions.

These are a series of load and store instructions that are designed to bypass the cache. For most data, the cache is a wonderful thing, because the cache is so much faster than main memory. But sometimes, the programmer knows that after reading to or writing from a particular memory address, the data won't be used any time soon, and so there's no point in caching it. In fact, caching the data would be a waste of cache space; caching that data will simply mean displacing something else from the cache, something else that might actually be needed.

The non-temporal instructions allow the processor to store data to main memory bypassing the cache on the way out. They also have some other properties.

Non-temporal stores are write combining: They're also weakly ordered: Used correctly, these can provide some of the fastest writes to memory, 64 bytes at a time, without disturbing any valuable cached data.

But if you use them incorrectly, performance can drop off a cliff. The non-temporal writes are buffered in buffers the size of a cache line, and there's a limited number of these buffers. If a program tries to perform non-temporal writes to too many different cache lines simultaneously, the processor ends up having to perform a bunch of partial cache line writes instead of nice big byte writes, and performance drops. If a program mixes regular and non-temporal stores to the same cache line, the performance drops.

If the program mixes loads with non-temporal stores to the same cache line, the performance drops. Although the writes are meant to be collapsed, on at least some processors, if a byte on a cache line is written more than once, performance drops. The nature of the performance hit will also tend to vary on a processor-by-processor basis. A penalty that may be negligible on one chip could be substantial on another; some processors appear to flush their caches entirely when non-temporal instructions are used "badly," which is, unsurprisingly, debilitating to performance.

The belief is that Ashes of the Singularity did something with non-temporal instructions that was harmless, or perhaps even desirable, on other chips but particularly detrimental on Ryzen. The performance update changes how the instructions are used to avoid the problem. Most non-temporal instructions control stores, but there's also a non-temporal load instruction and a set of prefetching instructions that include a non-temporal variant.

These are supposed to load data into some levels of cache, without requiring it to be loaded into other levels of cache. The precise meaning of the prefetch instructions varies from processor to processor—at best it is a hint rather than well-defined instruction. Placing the prefetch instructions in the right place is tricky; do it too early, and the prefetched data will be discarded by the time it's needed anyway. Do it too late, and the prefetched data still won't have been loaded by the time you need it.

Worse, prefetched data can displace data that would be used from cache, causing performance degradation. You must login or create an account to comment. PC Perspective tested Ashes of the Singularity before and after the patch. He covers Microsoft, programming and software development, Web technology and browsers, and security.

He is based in Brooklyn, NY.

windows 10 ryzen patch

Windows 10 new PC build, BSOD DPC Watchdog Violation on Ryzen

Windows 10 bit is required. There is going to be differences that will need to be worked out, either by software developers or compiler writers. I see that doesn't help the situation, so I guess it is just ignore from here on out. That's the reason Ryan presents frame rating data in percentiles. I've never had this error before, coming from a windows 8. It was a response to a comment by an idiot.

FYI: SMT Configuration Error Affecting AMD Ryzen Processors in Windows

In fact, caching the data would be a waste of cache space; caching that data will simply mean displacing something else from the cache, something else that might actually be needed. Addressed issue where Work Folders clients get duplicate files sync conflict files when Work Folders is configured using Group Policy. The patterns are not always simple. I wouldn't expect Windows to do any better if they did work with Ryzen topology to eliminate having threads accessing required resources in the other CCX. He covers Microsoft, programming and software development, Web technology and browsers, and security. Processors receive these requests all the time, and act on them by selecting matching states built into the hardware.

AMD Ryzen CPU Severely Crippled By Windows 10; Microsoft Says Patches On The Way

windows 10 ryzen patch

Minimums is what matters, not the "Averages" Josh was throwing at me. The page appears to be providing accurate, safe information. In reply to Dieg's post on March 6, Refreshing Intel's Coffee was quite effective. If you want to yawn, yawn properly with your body and don't type it out here. I don't know for sure how Windows scheduler and core parking algorithm works, but if they fix it for Zen, I expect that they're going to park more and more cores of a CCX until it is parked, then start parking cores from the other CCX. It's because some games are not using the correct CPU topology map. To me at least, it seems like there are other more interesting problems to solve for the whole Ryzen platform, if and when these are fixed Ryzen will be a great option for some workloads. Placing the prefetch instructions in the right place is tricky; do it too early, and the prefetched data will be discarded by the time it's needed anyway. You appear to be more interested in the perverse joy of smiting your irrationally perceived wrongdoers than you are interested in truthfully addressing any problems that are endemic in the entire technology and technology reporting industry. Indonesia Bahasa - Bahasa. Hi Dave and thanks. Used correctly, these can provide some of the fastest writes to memory, 64 bytes at a time, without disturbing any valuable cached data. But my point remains. Instructions can be found here:

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