Microsoft on Tuesday October 12th launched the primary cumulative replace for the brand new Home windows 11 working system. In accordance with TechPowerUp, this replace solely exacerbated the reported excessive latency of L3 cache on AMD Ryzen processors for a number of days in the past.

Shortly after the discharge of Home windows 11, AMD and Microsoft found that the brand new OS was poorly optimized for AMD Ryzen processors. It will increase the latency of the L3 cache by as much as 3 times, and the brand new OS scheduler doesn’t accurately handle the Collaborative Processor Efficiency Management (CPPC2) mechanism and doesn’t redirect threads to the quickest processor cores for optimum efficiency. All this results in a lower in efficiency in each work and gaming purposes, as much as 15%.

Portal TechPowerUp studies that the Ryzen 7 2700X with a typical delay of L3 cache 10 ns when transferring to Home windows 11, the delay within the L3-cache elevated to 17 ns.

After putting in the cumulative replace for Home windows 11 that Microsoft launched on October 12; the latency has nearly doubled to 31.9 ns.

Home windows 11 first replace slows down AMD Ryzen processors much more

Earlier it was stated that AMD is working with Microsoft to develop updates that ought to clear up the issues of sluggish 3-level cache reminiscence in Ryzen processors within the Home windows 11 setting, in addition to enhance the operation of the CPPC2 mechanism. Yesterday AMD introduced {that a} patch to repair bugs in CPPC2 shall be launched on October 21st. Nonetheless, some shoppers could obtain it earlier. Particulars usually are not specified, however, apparently, by these shoppers the corporate means its company shoppers. An replace addressing Ryzen L3 cache latency shall be accessible by way of Home windows Replace on October 19.

If rumors of a quickly approaching announcement of 12th Gen Intel Core processors on the finish of October are right; then AMD has little or no time to repair these issues. Reviewers should use Home windows 11 to check Alder Lake processors; as the brand new OS is optimized to work with the hybrid structure of Intel’s new chips. On this case, AMD Ryzen processor benchmarks can even be re-benchmarked on Home windows 11; which can have an effect on the objectivity of their outcomes. AMD wants to supply the required updates to reviewers as quickly as attainable.

Recall that Microsoft has remodeled the Home windows Subsystem for Linux (WSL) into an utility that may be downloaded and put in from the Microsoft Retailer on Home windows 11. A preview of the applying is offered now; giving Home windows 11 customers the flexibility to put in it; with out having so as to add WSL as an add-on when putting in the OS.