#memory-ordering

#memory-ordering

The Core Ultra 200S Plus processors (also referred to as Arrow Lake Refresh, in some circles) add more processor cores, boost clock speeds, add support for faster memory, and speed up the internal communication between different parts of the processor. Collectively, Intel says these improvements will boost gaming performance by an average of 15 percent.

Both work with Linux's existing swapping mechanism. Swapping (called paging in Windows) is a way for the kernel to handle running low on available RAM. It chooses pages of memory that aren't in use right now and copies them to disk, then those blocks can be marked as free and reused for something else.

With pthread's rwlock (reader-writer lock) implementation, I got 23.4 million reads in five seconds. With read-copy-update (RCU), I had 49.2 million reads, a one hundred ten percent improvement with zero changes to the workload.

If you use virtual machines, there's reason to feel less-than-Zen about AMD's CPUs. Computer scientists affiliated with the CISPA Helmholtz Center for Information Security in Germany have found a vulnerability in AMD CPUs that exposes secrets in its secure virtualization environment. The flaw, dubbed StackWarp, potentially allows a malicious insider who controls a host server to access sensitive data within AMD SEV-SNP guests through attacks designed to recover cryptographic private keys, bypass OpenSSH password authentication, and escalate privileges.

Sorano will be available with up to 84 Zen 5 cores - up from 64 on Siena - in a power envelope of just 225 watts. AMD isn't ready to spill all the beans on its latest Epyc just yet, but based on core count alone, we surmise the chip will either feature six density-optimized Zen 5c chiplets with 14 of 16 cores enabled or 12 of the frequency-optimized Zen 5 variety with one of the eight cores fused off.

Modern Linux is powerful, flexible, stable, and secure. With the exception of some of the more lightweight Linux distributions, it's also far more resource-dependent (just like all modern operating systems). Also: 5 things to consider before leaping from one Linux distribution to another Consider this: The minimum system requirements for Ubuntu Desktop today include just 4GB of RAM. I've run Ubuntu on a virtual machine with only 3GB of RAM.

The Xeon 600 lineup spans the gamut between 12 and 86 performance cores (no cut-down efficiency cores here), with support for between four and eight channels of DDR5 and 80 to 128 lanes of PCIe 5.0 connectivity. Compared to its aging W-3500-series chips, Intel is claiming a 9 percent uplift in single threaded workloads and up to 61 percent higher performance in multithreaded jobs, thanks in no small part to an additional 22 processor cores this generation.