Any other fix to get the TLB fix disabled? Comp isn't as fast encoding HD x as it was with Vista! Joined Sep 13, Messages 22, I wish I was smart enough to write one myself! JimmiG 2[H]4U. Joined Apr 3, Messages 2, Funny, the various TLB workarounds ended up being bigger problems than the TLB issue itself, which as far as I know never affected any real applications Joined Sep 18, Messages Is this still an issue with post SP1 Windows Vista?
I build alot of newer machines and allways disable the TLB fix. Righteous 2[H]4U. Joined Aug 1, Messages 3, JimmiG said:. Click to expand Perhaps, if you count being translated from French. Yea, 13 pages is quite alot to translate.
You could always use google translation if you want it done fast :kaola:. Speaking of french That link on page 3 goes to a French article that I found fascinating Would be even better if there was an English version though, cause then I could actually read it. Any chance of that? Nice article, good depth, well written. You could always use google translation if you want it done fast I don't know french, so no idea if it actually works.
Above you can see the tally of the performance deltas using Windows 10 as the baseline. Pre-patch, the X lost the most performance among the tested games, but most of the variances were very small. That doesn't mean such deltas don't exist, as different games and applications are impacted differently, so your mileage will vary.
Now let's move on for a closer look at the L3 cache bug. We recorded the latency measurements above with the AIDA utility. We saw a roughly 3X increase for all of the AMD chips between Windows 10 and 11, while the Intel chip returned identical L3 readings in both versions. We retested the X and X with the patches, and as you can see, latency has returned to normal. The basic idea behind any on-chip cache is to keep frequently accessed data as close to the execution cores as possible, thus improving performance.
The L3 cache is slower than other caches like L1 and L2 , but its higher capacity means it can store more data, thus improving the hit rate the number of times useful data is held in the cache. There's a reason AMD calls it "Game Cache" — L3 cache is very important to performance, and games in particular can suffer from either high L3 latency or reduced cache capacity.
These tests measure cache latency with varying sizes of data chunks, and we can clearly see the much higher L3 latency in the unpatched Windows 11 near the center of the chart. In fact, the first Windows 11 update made the issue even more severe, as we can see with the black lines in the first two slides. We remeasured performance with both the AMD chipset driver and Windows 11 patch for all of our synthetic tests.
Meanwhile, the Core iK enjoyed a slightly better cache and memory latency profile with Windows Our retests found that, aside from minor variations that we can chalk up to standard variability, AMD's L3 latency measurements have returned to normal for this series of tests. Different benchmark utilities test with unique measurement methodologies, algorithms, and cache strides, so results can and do vary. As such, we turned to SiSoftware's Sandra is used to measure cache and memory latency with three different access patterns, giving us more granularity than a single test and helping to sanity check the results we recorded with the other tools.
The last three slides show the results with the X with three different data patterns and generally align with what we've seen in other tests. Again, the recent Windows 11 patch and AMD's chipset drivers have fully corrected the L3 latency issues. Our first tests of L3 cache bandwidth were quite surprising. AIDA measured 7. Notably, copy bandwidth is the only measurement of the three that's indicative of application performance. After applying the patch, we see that the Ryzen 9 X regains nearly all of its performance in the copy workload, which, again, is the most relevant metric here.
The test still measures a Overall, this is a massive improvement. That represents a substantial improvement, but there's room for more refinement.
Due to time constraints, we haven't retested the X yet, but we expect similar improvements. Log in or Sign up. Valagard , Nov 23, Valagard, it's not that I don't believe you, I guess the patch does something for some people, as you seem to get differences with and without patch. It just doesn't do anything on my PC. Here's a screenshot to prove it Any test I run stays the same. Jack Hair , Nov 23, YuKsS , Nov 23, This thread is so confusing I have no idea what's going on.
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